化学专业英语5-experiment
化学中的英语学习
n-hexyl(或hexyl) n-undecyl(或undecyl)
烃中还有四个常用结构词头：
iso-(isomeric的缩写) (异)：
例如：
iso-butyl（异丁基）iso-hexane（异己烷）
sec-(secondary的缩写) (仲):
tert-(tertiary的缩写)(叔)
八. octa十七. heptadeca
九. nona十八. octadeca
十九. nonadeca二十八. octacosa
二十. eicosa二十九. nonacosa
二十一. heneicosa三十. triaconta
二十二. docosa三十一. hentriaconta
二十三. tricosa三十二. dotriaconta
1.1.6、卤代酸根的构成
将卤代酸的词头hydro和acid去掉用ide代替词尾ic
例如：
氢氟酸hydrofluoric acid氢氟酸根(盐) fluoride
氢氯酸hydrochloric acid氢氯酸根(盐) chloride
氢溴酸hydrobromic acid氢溴酸根(盐) bromide
四十二烷. dotetracontane四十六烷. hexatetracontane
四十三烷. tritetracontane四十七烷. heptatetracontane
四十四烷. tetratetracontane四十八烷. octatetracontane
四十九烷. Nonatetracontane五十烷. Pentacontane
iso (isomeric)异
temp. (temperature)温度
化学实验知识点高考英语
化学实验知识点高考英语Chemistry Experiment Knowledge for the College Entrance ExaminationChemistry is a fundamental subject that plays a significant role in our daily lives. Not only does it help us understand the natural world, but it also has practical applications in various fields. For students preparing for the College Entrance Examination, commonly referred to as the Gaokao, having a good understanding of chemistry experiments is crucial. In this article, we will explore some important knowledge points related to chemistry experiments that are likely to appear in the Gaokao English paper.1. Laboratory SafetySafety should always be the top priority in any chemistry experiment. While conducting experiments in the laboratory, students must adhere to certain safety precautions. Wearing protective clothing such as lab coats and goggles, handling chemicals cautiously, and being aware of emergency exits and safety equipment are essential. It is vital to remember that prevention is better than cure, especially when it comes to handling hazardous substances or using fire.2. Lab EquipmentUnderstanding the different equipment used in chemistry experiments is essential for successfully conducting them. Some common lab equipment includes beakers, test tubes, flasks, pipettes, and Bunsen burners. Each piece of equipment has its specific purpose and usage. For instance, beakers are used to measure and mix liquids, while test tubes are employed for small-scale chemical reactions. Familiarizing oneself with the names and functions of these materials will help students comprehend the instructions and questions in the exam accurately.3. Chemical ReactionsChemical reactions are at the core of chemistry experiments. Students must be well-versed in various types of reactions, such as synthesis, decomposition, displacement, and redox reactions. Understanding the reactants, products, and balanced chemical equations for these reactions is essential. Additionally, knowing how to identify the speed of reactions, factors influencing the rate of reactions, and the concept of activation energy can help students answer relevant questions with ease.4. Solution PreparationPreparing solutions is a common task in chemistry experiments. Students should be aware of the correct method for preparing a solution with a desired concentration. This involves accurately measuring and dissolving the solute in a solvent. It is crucial to determine the balanced equation and the number of moles involved in order to calculate the mass of solute required. Furthermore, understanding concentration units such as molarity and percentage can help in both the preparation and dilution of solutions.5. StoichiometryStoichiometry is a key concept in chemistry that involves calculating the quantities of reactants and products in a chemical reaction. It is crucial to understand the concept of mole and how it relates to the Avogadro's number. By utilizing balanced equations and stoichiometric calculations, students candetermine the amounts of substances involved in a reaction. This knowledge is vital for solving problems related to limiting reactants, percent yield, and theoretical yield.6. Data AnalysisInterpreting and analyzing experimental data is an integral part of chemistry experiments. Students should be familiar with various methods of representing data, such as graphs, tables, and charts. They should also be able to identify trends, make comparisons, and draw conclusions based on the data provided. Moreover, understanding the concept of uncertainties and error analysis is crucial when evaluating the accuracy and reliability of experimental results.In conclusion, having a strong foundation in chemistry experiment knowledge is essential for students preparing for the Gaokao. By focusing on laboratory safety, understanding lab equipment, chemical reactions, solution preparation, stoichiometry, and data analysis, students can excel in the chemistry section of the exam. Remember, practice and thorough understanding are the keys to success in any subject, including chemistry.。
化学实验英语作文
化学实验英语作文Title: A Chemistry Experiment: Synthesis of Aspirin。
Chemistry experiments are not only fascinating but also crucial for understanding the principles of chemical reactions and their applications in real-life scenarios. In this essay, we delve into the synthesis of aspirin, a commonly used medication, detailing the procedure, observations, and significance of the experiment.The synthesis of aspirin involves the reaction between salicylic acid and acetic anhydride in the presence of a catalyst, typically sulfuric acid. The reaction yields aspirin (acetylsalicylic acid) and acetic acid as byproducts. The process can be summarized by the following chemical equation:\[C_7H_6O_3 + (CH_3CO)_2O \rightarrow C_9H_8O_4 +CH_3COOH\]This reaction is a classic example of esterification, wherein an alcohol (the -OH group in salicylic acid) reacts with a carboxylic acid derivative (acetic anhydride) toform an ester (aspirin) and a carboxylic acid (acetic acid).The experimental procedure begins with measuring the required amounts of salicylic acid and acetic anhydride. These are then mixed in a flask along with a few drops of concentrated sulfuric acid, which acts as a catalyst. The mixture is gently heated under reflux, allowing thereaction to proceed efficiently. Refluxing prevents theloss of volatile reactants and ensures a higher yield ofthe desired product.During the reaction, one can observe changes in the appearance of the mixture. Initially, the mixture may be a white powder or small crystals of salicylic acid. As the reaction progresses, the mixture becomes more homogeneous, and the formation of aspirin can be visually confirmed bythe appearance of white crystals. The reaction is typically complete within a couple of hours.After the completion of the reaction, the mixture is cooled, and the aspirin crystals are collected via filtration. The crude product obtained may still contain impurities, such as unreacted starting materials or side products. Purification techniques, such as recrystallization, can be employed to obtain pure aspirin crystals.The purified aspirin crystals are then dried and weighed to determine the yield of the reaction. Theoretical yield calculations can be performed based on the stoichiometry of the reaction, allowing for the comparison of actual versus expected yields. Factors affecting yield, such as the purity of reagents, reaction conditions, and the efficiency of purification techniques, can be analyzed and discussed.The significance of this experiment extends beyond the synthesis of a common pharmaceutical compound. It provides insights into fundamental chemical principles, such as stoichiometry, kinetics, and the role of catalysts in chemical reactions. Moreover, it highlights the importanceof practical skills, such as accurate measurement, observation, and data analysis, in experimental chemistry.Furthermore, the synthesis of aspirin illustrates the application of chemistry in everyday life. Aspirin, withits analgesic, anti-inflammatory, and antipyretic properties, is one of the most widely used medications worldwide. Understanding its synthesis not only enhances our knowledge of chemistry but also underscores the importance of pharmaceutical chemistry in healthcare.In conclusion, the synthesis of aspirin is a classic chemistry experiment that offers valuable insights into chemical reactions, purification techniques, and the application of chemistry in the synthesis of pharmaceutical compounds. Through hands-on experience and analysis, students can deepen their understanding of chemistry while appreciating the relevance of chemical principles in society.。
化学专业课程中英文对照+化工装置常用词汇
分析化学Analytical Chemistry有机化学Organic Chemistry物理化学Physical Chemistry谱学导论Introducton of Spectroscopy无机化学Inorganic Chemistry普通化学和分析化学实验 Experiments of General and Analytical Chemistry现在基础化学 The Principle of Mordern Chemistry现在基础化学实验Experiments of Modern Fundamental Chemistry有机化学实验 Experiments of Organic Chemistry仪器分析和物理化学实验 Experiments of Instrumental Analysis and Physical Chemistry 合成化学实验 Experiments of Synthetic Chemistry现代化学专题 Topic of Modern Chemistry化学综合实验 Experiments of Comprehensive Chemistry化工原理Principle of Chemical Engineering化工原理实验 Experiments of Chemical Engineering应用化学实验 Experiments of Applied Chemistry无机合成化学 Synthetic Inorganic Chemistry近代分析化学 Modern Analytical Chemistry分离分析化学 Separation Analytical Chemistry有机化合物波谱鉴定Spectrum Identification of Organic Compounds有机合成及反应机理Organic Synthesis and Mechanics化学反应工程 Chemical Reaction Engineering应用电化学 Applied Electrochemistry工业催化Industrial Catalysis环境化学 Environmental Chemistry环境监测 Environmental Monitoring化学科技英语 Scientific English for Chemistry数理方法在化学中的应用 Mathematical Statistics for Chemistry 化工制图Chemical Engineering Cartography计算机与化学测量实验 Computer and Chemical Measurement 化学信息学 Chemoinformatics or Chemical Informatics应用化学专题 Special Topics in Applied Chemistry化工装置常用词汇1一概论introduction方案(建议书) proposal可行性研究feasibility study方案设计concept design工艺设计process design基础设计basic design详细设计detail design开工会议kick—off meeting审核会议review meeting外商投资foreign investment中外合资joint venture中外合营joint venture补偿贸易compensation trade合同合同附件contract卖方vendor买方buyer顾客client承包商contractor供应范围scope of supply生产范围production scope生产能力production capacity项目project界区battery limit装置plant公用工程utilities工艺流程图process flow diagram工艺流程方块图process block diagram管道及仪表流程图piping and instrument drawing物料及热量平衡图mass ＆heat balance diagram蒸汽及冷凝水平衡图steam ＆condensate balance diagram 设备布置图equipment layout设备表equipment list成品(产品) product(final product)副产品by—product原料raw—material设计基础数据basic data for design技术数据technical data数据表data sheet设计文件design document设计规定design regulation现场服务site service项目变更project change用户变更client change消耗定额consumption quota技术转让technical transfer技术知识technical know—howtechnical knowledge技术保证technical guarantee咨询服务consultative services技术服务technical services工作地点location施工现场construction field报价quotation标书bidding book公司利润company profit固定价合同fixed price contract固定单价合同fixed unit price contract成本加酬金合同cost plus award fee contract定金mobilization银行保证书bank guarantee letter保留金retention特别承包人税special contractor's taxes城市和市政税city and municipal taxes工作手册work manual工作流程图work flow diagram质量保证程序QA/QC procedures采购计划procurement plan施工计划construction plan施工进度construction schedule项目实施计划project execution plan项目协调程序project coordination procedure 项目总进度计划project master schedule设计网络计划engineering network logic项目质量保证project quality assurance项目质量控制project quality control采购procurement采购周期procurement period会签the squad check计算书calculation sheets询价inquiry检验inspection运输transportation开车start up / commission验收inspection & acceptance校核check审核review审定approve版次version部门department专业specialty项目号project number图号drawing number目录contents序言foreword章chapter节section项itemMR material requisitionSPEC engineering specificationDATA SHEET(技术表）technical data sheet TBA（技术评标）technical bid analysis PDP preliminary design packagePM (项目经理）project managerLDE(专业负责人) lead discipline engineerMRQ(材料询价单）Material requisition for quotationMRP（材料采购单）material requisition for purchaseBEP(基础工程设计包) basic engineering packageP＆ID(管道及仪表流程图）piping and instrument drawing(diagram) PFD process flow diagramNNF normally no flowFO failure openFC failure closeC/S/A civil/structure/architectureDDP(详细设计阶段）detail design phase化工装置词汇二。
化学专业英语实验设计方案范文
化学专业英语实验设计方案范文Experimental Design Proposal for a Chemical Process.Introduction.In the field of chemical engineering, the optimization of processes is crucial for achieving desired outcomes while minimizing resource waste and environmental impact. The proposed experiment aims to investigate the efficiency of a specific chemical reaction under varying conditions. The objective is to identify the optimal conditions that maximize the reaction yield while minimizing by-product formation and energy consumption. This experiment will provide valuable insights into the kinetics and mechanisms of the reaction, leading to improved process design and operation.Experimental Objectives.1. To study the effect of temperature on the rate andyield of the chemical reaction.2. To investigate the impact of catalyst concentration on the reaction kinetics.3. To evaluate the influence of reactant concentration on product selectivity and by-product formation.4. To determine the optimal reaction conditions that maximize the desired product yield.Materials and Methods.Materials.1. Reactants A and B (purified to ≥99% purity)。
化学实验报告 英文
化学实验报告英文Chemistry Experiment ReportIntroduction:In the field of science, experiments play a crucial role in deepening our understanding of various phenomena. This report aims to present the findings and observations from a recent chemistry experiment conducted in the laboratory. The experiment focused on the reaction between two chemicals and explored the effects of different variables on the reaction rate.Experimental Procedure:The experiment began by carefully measuring and preparing the required chemicals: sodium hydroxide (NaOH) and hydrochloric acid (HCl). These chemicals were chosen due to their well-known reaction, which produces salt and water. The experiment aimed to investigate how factors such as concentration, temperature, and catalysts influenced the reaction rate.To start the experiment, a fixed volume of NaOH solution was poured into a conical flask. The concentration of NaOH was varied in different trials, ranging from 0.1 M to 1.0 M. The flask was placed on a magnetic stirrer to ensure uniform mixing. Then, a burette was used to add a fixed volume of HCl solution to the flask. The reaction was monitored by observing the formation of a white precipitate, indicating the completion of the reaction.Results and Discussion:The experiment revealed several interesting findings. Firstly, it was observed thatas the concentration of NaOH increased, the reaction rate also increased. This can be attributed to the higher number of NaOH particles available to react with HCl, leading to more frequent collisions and faster reaction kinetics. Furthermore, the effect of temperature on the reaction rate was investigated. It was found that as the temperature increased, the reaction rate also increased. This can be explained by the kinetic theory of gases, which states that at higher temperatures, particles possess greater kinetic energy and move more rapidly. Consequently, more collisions occur, resulting in a faster reaction rate.The influence of catalysts on the reaction rate was also examined. A small amount of catalyst, in the form of manganese(IV) oxide (MnO2), was added to the reaction mixture. It was observed that the presence of the catalyst significantly increased the reaction rate. Catalysts provide an alternative reaction pathway with lower activation energy, allowing the reaction to proceed more rapidly.Conclusion:In conclusion, this experiment provided valuable insights into the factors affecting the reaction rate between NaOH and HCl. The concentration of the reactants, temperature, and the presence of catalysts were identified as key variables influencing the rate of the reaction. Understanding these factors is crucial in various industrial processes where reaction rates play a vital role.It is important to note that this experiment focused on a specific reaction and variables. Further research could explore the effects of other factors, such aspressure and surface area, on the reaction rate. Additionally, investigating the reaction kinetics using mathematical models could provide a more comprehensive understanding of the underlying mechanisms.Overall, this experiment highlights the significance of chemistry in unraveling the mysteries of the natural world. By conducting experiments and analyzing the results, scientists can uncover fundamental principles that govern chemical reactions, paving the way for advancements in various fields, including medicine, energy, and materials science.。
(完整版)化学专业英语
一、元素和单质的命名“元素”和“单质”的英文意思都是“element”，有时为了区别，在强调“单质”时可用“free element”。
因此，单质的英文名称与元素的英文名称是一样的。
下面给出的既是元素的名称，同时又是单质的名称。
2过渡元素和单质Fe : iron Mn : manganese Cu: copper Zn: zinc Hg: mercury Ag: silver Au: gold二化合物的命名：化合物的命名顺序都是根据化学式从左往右读，这与中文读法顺序是相反的。
表示原子个数时使用前缀：mono-di -tri- tetra -penta- hexa-hepta- octa-，nona-, deca-,但是在不会引起歧义时，这些前缀都尽可能被省去。
1．化合物正电荷部分的读法：直呼其名，即读其元素名称。
如CO: carbon monoxide Al2O3: aluminium oxideN2O4：Di nitrogen tetroxide对于有变价的金属元素，除了可用前缀来表示以外，更多采用罗马数字来表示金属的氧化态，或用后缀-ous表示低价，-ic表示高价。
如FeO: iron(II) oxide 或ferrous oxide Fe2O3: iron (III) oxide或ferric oxide Cu2O: copper(I) oxide 或cuprous oxide CuO: copper(II) oxide或cupric oxide ２．化合物负电荷部分的读法：２．１二元化合物：常见的二元化合物有卤化物，氧化物，硫化物，氮化物，磷化物，碳化物，金属氢化物等，命名时需要使用后缀-ide，如：fluoride，chloride，bromide，iodide，oxide ，sulfide ，nitride, phosphide, carbide，hydride; OH -的名称也是用后缀-ide：hydroxide，非金属氢化物不用此后缀，而是将其看成其它二元化合物（见２。
化学实验报告常见英文
Experiment Title: Synthesis of Ethanol from EthanolamineDate: [Date]Objective:The objective of this experiment was to synthesize ethanol from ethanolamine using the dehydration reaction. Ethanolamine is a compound with the molecular formula NH2CH2CH2OH, and it can be dehydrated to produce ethanol (CH3CH2OH) and ammonia (NH3).Materials:- Ethanolamine (NH2CH2CH2OH)- Sulfuric acid (H2SO4)- Concentrated sulfuric acid- Ethanol- Sodium chloride (NaCl)- Distilled water- Sodium hydroxide (NaOH)- Sodium sulfate (Na2SO4)- Potassium permanganate (KMnO4)- Barium chloride (BaCl2)- Distillation apparatus- Reaction vessel- Round-bottom flask- Condenser- Thermometer- Test tubes- Pipettes- Weighing scale- Stirring rod- Safety goggles- Gloves- Lab coatProcedure:1. Measure 5 g of ethanolamine using a weighing scale and transfer it toa round-bottom flask.2. Add 5 mL of concentrated sulfuric acid to the flask and stir the mixture thoroughly.3. Place the flask in a water bath and heat it to 60°C for 2 hours. This will facilitate the dehydration reaction.4. After 2 hours, remove the flask from the water bath and allow it to cool to room temperature.5. Transfer the reaction mixture to a distillation apparatus. The distillation apparatus consists of a round-bottom flask, a condenser, and a receiving flask.6. Heat the mixture to approximately 78°C, which is the boiling point of ethanol. Ethanol will vaporize and be collected in the receiving flask.7. Collect the distillate and transfer it to a test tube. Add 5 mL of water to the test tube and observe the appearance of the liquid.8. To identify the presence of ammonia, add a few drops of potassium permanganate to the test tube. If the solution turns brown, it indicates the presence of ammonia.9. To confirm the purity of the ethanol, add a few drops of barium chloride to the test tube. If a white precipitate forms, it indicates the presence of sodium chloride, which was used as a catalyst in the reaction.10. Dispose of the waste products and clean the equipment.Results:- The reaction mixture was heated to 60°C for 2 hours, and the distillation was performed at approximately 78°C.- Ethanol was collected in the receiving flask, and the distillate was observed to be a clear liquid.- A brown color was observed in the test tube when potassium permanganate was added, indicating the presence of ammonia.- A white precipitate formed when barium chloride was added, indicating the presence of sodium chloride.Discussion:The dehydration reaction of ethanolamine to produce ethanol was successfully achieved in this experiment. The reaction mixture was heated to 60°C for 2 hours to facilitate the dehydration process. Ethanol was collected in the receiving flask, and the distillate was observed to be a clear liquid, indicating the successful synthesis of ethanol.The presence of ammonia was confirmed by the brown color observed when potassium permanganate was added. This suggests that the dehydration reaction also produced ammonia as a byproduct.The formation of a white precipitate when barium chloride was added confirms the presence of sodium chloride, which was used as a catalyst in the reaction. The sodium chloride did not affect the purity of the ethanol product.Conclusion:The objective of synthesizing ethanol from ethanolamine using the dehydration reaction was successfully achieved in this experiment. Ethanol was produced, and the purity of the product was confirmed by observing the color changes and precipitate formation. This experiment provided a practical approach to understanding the dehydration reaction and its application in the synthesis of organic compounds.。
化学专业英语第五版
化学专业英语第五版英文回答：Introduction.Chemistry is the study of matter and its properties, as well as the changes that matter undergoes. It is a vast and complex field that encompasses many different branches, including inorganic chemistry, organic chemistry, physical chemistry, analytical chemistry, and biochemistry.Chemistry is essential to our understanding of theworld around us. It plays a role in everything from thefood we eat to the clothes we wear to the medicines we take. Chemistry is also used in a wide variety of industries, including manufacturing, agriculture, and energy production.Importance of Chemistry.Chemistry is important for a number of reasons. First,it helps us to understand the world around us. By studying chemistry, we can learn about the composition of matter, the properties of different elements and compounds, and the changes that matter undergoes. This knowledge can help us to make informed decisions about the products we use and the activities we engage in.Second, chemistry is essential for the development of new technologies. Many of the technologies that we rely on today, such as computers, cell phones, and medical devices, would not be possible without chemistry. Chemistry is also used to develop new materials, such as plastics, ceramics, and composites. These materials are used in a wide variety of applications, from construction to transportation to medicine.Third, chemistry is important for the environment. Chemistry can help us to understand the impact of human activities on the environment and develop ways to reduce our impact. Chemistry is also used to develop new technologies that can help us to clean up pollution and protect the environment.Challenges in Chemistry.Chemistry is a challenging field, but it is also a rewarding one. There are many challenges that chemists face, including:The complexity of matter. Matter is made up of atoms and molecules, which are themselves made up of even smaller particles. Understanding the structure and properties of matter is a complex task.The vastness of chemistry. Chemistry is a vast field that encompasses many different branches. It is impossible for any one person to know everything about chemistry.The rapid pace of change. Chemistry is a rapidly changing field. New discoveries are being made all the time. Chemists must be able to keep up with the latest advancesin order to stay current in their field.Despite the challenges, chemistry is a fascinating andrewarding field. It is a field that is constantly evolving, and there is always something new to learn.中文回答：导言。
化工化学类专业英语
Safety in the laboratoryEveryday, all over the world people work in laboratories are injured and expensive damages are caused by accidents that could have been avoided if the people would have followed safe working practices. This video wants to give advice on how to work safely in a laboratory environment, so that you can avoid unnecessary risks to yourself and others. The work area has to be kept neat and tidy. No eating or drinking is allowed in laboratories. No running, no bags are admitted on the laboratory floors or in corridors.ProtectionChemicals should always be treated with respect. Do your best to avoid unnecessary contact. Ta protect yourself from chemicals, protect clothing is required. Safety goggles and laboratory coat has to be worn at all time in a laboratory. Wear proper footwear. Shoes must have a solid sole and must close the entire foot. When working with hazards chemicals, in addition, gloves have to be worn. Malce sure that material of the gloves is suitable for the chemicals you are handling, as some chemicals can penetrate unsuitable glove materials easily.Chemical Hazards: Many chemicals have dangerous characteristics. They may be flammable, explosive, oxidizing, irritant, toxic, corrosive, damaging to the environment. In addition, they may be cancerogenic, mutagenic(诱导突变)，and teratogenic(产生畸形)‘Before you use chemicals, always inform yourself about possible dangers. Besides the name and the hazards symbol, you can find the information about the specific dangers of the chemicals, and also precautions on the labels of the bottle. Many labels contain besides the direct safety information, additional information izz risk phrases (R phrases), and safety phrases {S phrases). Books and information materials of the labor associations provide more detailed information about the specific hazards of chemical. Safety posters attached in the laboratory provide quick access to safety information and precaution measures of often used chemicals. Material safety data sheets are provided by the supplier of your chemicals and the detail information about the chemical and hazard properties of respective chemical also in English language. MSDS and safety guide lines are also available on CD-Rom and online on the Internet. It is important to label any glass or flask you fill, as many hazardous solutions Took just Iike water.Accidents: Most accidents occur because there is a breakdown in safe work procedures and administrated control. Glassware is sharp when broken. Chemicals can be corrosive or toxic, even a wet floor can cause an accident. Even small accidents can lead to a major disaster. It is therefore important to report all accidents immediately. Cleaning a minor accident immediately avoid any danger for a later accident.Working with chemicals: To make a laboratory a safe place, safe working practices have to be followed. When heating a liquid in a test-tube, always point the test-tube away from other people. Never fill a pipette with your mouth, use a pipette filler instead. Always fill a burette beloweye-level. If gases have to be smelled, wave them toward your nose. Gas cylinders have to be transported In proper trolleys. Make sure that the safety cap is always firnlly attached when you transport gas cylinders. If a cylinder is too heavy far you to be handled alone, get a 2nd person to assist you. In the laboratory, gas cylinders have to be secured against toggling with a chain. Heavy bottles that have to be handled with both hands may not be stored over head height. Large bottles should be carried in a carrier. If no carrier is available, a plastic baggage may do the job. Experiments that may produce hazardous gases have to be carried out in a fume cupboard. Make sure that hood is closed properly, and sure that the hood is functioning properly. Spills ofchemicals on the bench or the floor have to be cleaned down immediately to avoid accidental contact with a skin. Diluted acids can be further diluted with water. Concentrated acids must be neutralized with NaHC03 before disposing them down the sink. For concentrated bases, neutralize with diluted acid first. Every chemical experiment leaves laboratory waste. Some of these wastes are incompatible to each other, and may leave to vigorous reactions or development toxic fumes. Always inform yourself about the proper way of disposing your chemical wastes. Some waste cannot be disposed to the waste water system. Inform yourself what waste can be disposed down the sink and which ones cannot. Never dispose solvents down to the sink. To reduce the risk of incompatible reactions of waste and to allow easier to dispose waste, waste should be separated already in the laboratory.Fire Hazards: There are several possible sources for a laboratory fire. The most probable sources are flammable liquids. Flammable&highly flammable liquid can easily be ignited when there is a source of ignition like an open flame, or sparks, or heat sources, and even electrostafiic charges. Sparks may also occur when you plug in electrical devices or turn electrical devices on or ofF Highly volatile solvents evaporate quickly. If the vapors are exposed fio an ignition source, a fire will result, even this source is not near the solvent. So if you work with flammable solvent, make sure there is no source of ignition close by. To avoid the build-up of any flammable vapors, when working with highly flammable solvent, work in the fume cupboard. To heat a flammable liquid, use either a water bath, a steam bath, and oil bath or a heating mantle. In some cases, even very simple measures may be sufficient to avoid a big fre. Before working in a chemical laboratory, make sure you know the location of the nearest fire extinguisher, fire blanket, and emergency exit. Also a bucket of sand can efficiently extinguish a fire. If the fire is too large or beyond contral, ring the f re alarm to warn others. In the case of fire alarm, stop all of your ongoing work, turn off gas and electric devices. Follow the orders of safety personnel and loud speaker messages and leave the laboratory quickly and orderly through the nearest safety exit. In the case of fire alarm, never use electric elevators, use the stairway insfiead. After leaving the building, assemble afi your designated point and wait for further instructions. By this way, it can be verified that every person has left the building. Don't flee the area without authorization.Safety measures in the case of fire: Clearly mark the emergency exits. Emergency exits may never be locked. Ensure that emergency exists are always kept free from bags and stored equiprnenfi. Attach emergency plans at central locations in the laboratory. Practice correct evacuation procedures in fire growth.First aid: accidents involving injuries can happen in the laboratory at any time. A first aid box like this is useless. Appropriate first aid boxes contain bandage, sterile dressing in variaus sizes, antiseptic solution, disposable gloves, a pair of scissors and a record book. All accidents have to be recorded in the book. When a cut occurs, first rinse it with plenty of running water. Then clean with antiseptic solution, dry the wound and surrounding skin and cover it with a sterile dressing. If you get burned, rinse it immediately with plenty of water. You should rinse at least for IOmin. If the wound is deep or blistered, consult the doctor. If a liquid gets into your eyes, the eye should be washed immediately with clean running water for at least lOmin. Move the eyeballs so that all chemicals are washed out. The eyes should then be checked by a doctor. Note the nanr}e of the chemical and give it to the doctor. This information will help him to choose the correct treatment. Ifchemical spill over your cloth, remove the contaminated cloth immediately and use the nearestemergency shower, wash chemicals off carefully. To ensure that the water in emergency shower and the eye wash fountain is always clean, the shower and fountain have to be open at regular intervals to remove the old water from the system. Otherwise, bacterial may grow in the pipes and cause damage to the injuries. A chemical laboratory can be a dangerous place. It is in your hands to make it a safer working environment by following the rules and regulations on safe working practices.。
关于英文版化学实验报告
关于英文版化学实验报告篇一：英文版化学实验报告Title: Preparation of Fe scrap from waste(NH4) 2SO4.FeSO4.6H2OThe purpose of the experimentLearn the method used scrap iron preparation of ferrous ammonium sulfate.Familiar with the water bath, filtered, and evaporated under reduced pressure and crystallization basic working.The experimental principle, the iron and sulfuric acid to generate reactive ferrous sulfate, ferrous sulfate and ammonium sulfate in an aqueous solution of equal molar interaction, becomes less soluble blue generate ferrous ammonium sulfate.Fe+H2SO4=FeSO4+H2 (gas)FeSO4+ (NH4)2SO4+6H2O=(NH4)2SO4.FeSO4.6H2O Usually ferrous rocks are easily oxidized in air, but after the formation of relatively stable perfunctory, not to be oxidized.Experiment to use instruments, scales, constant temperature water bath, pumps, basins, cups, 10ml graduated cylinder, asbestos mesh, glass, tripod, alcohol lamp, funnel.Iron pieces to a solid pharmaceutical use, use of acid ammonium sulfate and 3mol / l of sulfuric acid, concentrated sulfuric acid.The experiment was divided into four steps.The first step Said iron powder 4g into a beaker and then 50ml 10ml, 3mol / L H2SO4 was added to the same beaker. The second step will be the beaker is heated to no more bubbles, and then filtered hot and the filtrate was then filled in 100ml beaker. The third step, called 4g (NH4)2SO4, and the resultingammonium sulfate and 5.3ml of water to form a saturated solution, and then add it to the ferrous sulfate solution, adjusted with concentrated sulfuric acid to PH = 1. A fourth step, the third step the solution was heated in a water bath to the surface until the film is crystallized, it was slowly cooled andthen filtered under reduced pressure to stand finally dried, weighed and the yield was calculated. The results obtained 8.1g bluish powdery crystals. Have this result we can calculate yield, starting with the first step we tried to know the amount of iron, should this we can calculate the theoretical sulfate ferrous sulfate is 0.03mol, then ferrous sulfate obtained by the0.03molFeSO4 theoretical value of ammonium. FeSO4+（NH4）2SO4+6H2O=FeSO4.(NH4)2SO4.6H2O 0.03molX molX=0.03molm=XM=0.03molⅹ392g/mol=11.76gYield = the actual value of the formula is divided by the theoreticalvalue by 100%.it will be calculated into the data obtained in a yield of 68.9%.篇二：英文版化学实验报告The preparation of alkali type copper carbonateThe first:the experiment purpose1.Master the methods of alkali type copper carbonate prepared and principle2.Through the design experiment to cultivate independent design ability and chemical research thinkingThe second:the experimental principleThe solubility of Cu(OH)2and CuCO3 are similar, With Cu2(OH)2CO3 solid precipitation in the solution.2CuSO4+2Na2CO3+H2O==Cu2(OH)2CO3↓+2Na2SO4+CO2↑The third:the experimental steps1.Solution preparationDisposes 0.5 mole of each litre acid sour coppers and sodium carbonate solution each 100 milliliters.2.The feeding order and raw material compare the explorationAccording to 2:1.6,2:2,2:2.4,2:2.8 allocated proportion, is accepted after passing an examination the surface disposition acid sour copper and the sodium carbonate solution, joins in separately 8 test tubes, joins rapidly the sulfuric acid copper solutions in the sodium carbonatesolution, vibrates about other constant temperature ten minutes as for 75 degrees Celsius water baths in, the inversion feeding order recreates one time, the observation has the precipitation speed, quantity how many and the color,discovers the optimum condition.3.Temperature explorationAccording to the above optimum condition, takes the acid sour copper solutions and the sodium carbonate solution separately under 50, 75 and 100 degrees Celsius responded that, discovers the optimum temperature.4.According to 2, 3 step exploration optimum condition prepares the final product, and with the distilled water lavation, finally dries and calls heavily.(Enlarges ten times with conical flask to do)The fourth:the experimental itemsInstrument and material: The balance, the beaker, the glass rod, the Volumetric flask, the test tube, the filter flask,the Buchner funnel, the Erlenmeyer flaskChemicals: Copper carbonate, sodium sulfateThe fifth:the experimental result1.By the step 2, the observation phenomenon optimum condition is equal to for the cupric sulfate compared to the sodium carbonate 2:2.4, the feeding order for joins the sulfuric acid copper solutions to thesodium carbonate solution in.2.By the step 3, the observation phenomenon optimum temperature is 75 degrees Celsius3.According to the copper sulfate solution than sodium carbonatesolution is 2:2. 4, ten times magnification, alkali type copper carbonate was zero point five grams, according to the reaction equation calculation yield.2CuSO4+2Na2CO3+H2O==Cu2(OH)2CO3↓+2Na2SO4+CO2↑2 10.5*0.02 X2/(0.5*0.02)=1/XX=0.005M[Cu2(OH)2CO3]=0.005*222=1.11gProductive rate:0.5/1.11*100%=45%The sixth : Questions1. Which cupric salt suit the system to take the cupric basic carbonate? Answer:Cu(NO)3 or CuSO42. The reaction temperature has what influence to this experiment?.Answer:The temperature excessively is low, the response speed is slow; The hyperpyrexia, the Cu2(OH)2CO3 decomposition is CuO.3. Reaction is carried out at what temperature will appear Brownproduct? What is the brown substance?Answer: The temperature is equal to 100 degrees Celsius and this brown material is CuO.篇三：化学专业英语实验报告In the physiological saline the sodium chloride content determinationone, the experimental goal1、the study silver nitrate standard solution configuration and the demarcation method2、the grasping law raises Si Fa to determine the chloride ion the method principle two, the experimental principleWith AgNO3 standard solution titration Cl - Ag + + Cl - = = AgCl，At ph 7.0 -10.5 available fluorescent yellow do indicator (HFIn)HFIn = = FIn (yellow) + H +Sp before: excessive, AgCl precipitation adsorption of Cl - AgCl Cl - + FIn - (yellow-green)After Sp: Ag +, excessive AgCl precipitation Ag + adsorption, adsorption FIn - reprecipitation AgCl, Ag + + FIn - = = AgCl, Ag +, FIn - (pink) The finish color changes: from yellowish green to orange Three, instruments and reagentsEquipment and materials：Acid type buret (150 ml), taper bottle (250 ml), volumetric flask (100 ml), pipette (20 ml, 10 ml), measuringcylinder (100 ml, 10 ml), beaker (100 ml), brown reagent bottles (500 ml), analytical balance, platform scale. The reagent and drug: Analysis of AgNO3 (s, pure), NaCl (s,analysis of pure), physiological saline, fluorescent yellow - starch. Fourth, the experimental stepsAccurately moving 25 ml concentration is 0.7064 mol ╱L of silver nitrate standard solution in the middle of 250 ml volumetric flask, dilute to scale as a standard solution titration.Accurately moving saline 10.00 ml to 250 ml conical flask, add 50 ml water, 3 drops of fluorescent yellow indicator, 5% starch indicator 5 ml, under continuous agitation, using silver nitratestandard solution titration to solution from yellow to pink is the end point. Record the consumption volume of silver nitratestandard solution, parallel determination of 3, calculate the sodium chloride content in saline and relative mean deviation.Fifth, data recording and processingFormula: ρ = V×MrNaCl×CAgNO3 x 100The average deviation d=0.01300 dr=d/ρ×100%=0.13%。
(完整版)化学专业英语
(完整版)化学专业英语一、基础词汇篇1. 原子与分子Atom（原子）：物质的基本单位，由质子、中子和电子组成。
2. 化学反应Reactant（反应物）：参与化学反应的物质。
Product（物）：化学反应后的物质。
Catalyst（催化剂）：能改变化学反应速率而本身不发生永久变化的物质。
3. 物质状态Solid（固体）：具有一定形状和体积的物质。
Liquid（液体）：具有一定体积，无固定形状的物质。
Gas（气体）：无固定形状和体积的物质。
4. 酸碱盐Acid（酸）：在水溶液中能电离出氢离子的物质。
Base（碱）：在水溶液中能电离出氢氧根离子的物质。
Salt（盐）：由酸的阴离子和碱的阳离子组成的化合物。
5. 溶液与浓度Solution（溶液）：由溶剂和溶质组成的均匀混合物。
Solvent（溶剂）：能溶解其他物质的物质。
Solute（溶质）：被溶解的物质。
Concentration（浓度）：溶液中溶质含量的度量。
二、专业术语篇1. 有机化学Organic Chemistry（有机化学）：研究碳化合物及其衍生物的化学分支。
Functional Group（官能团）：决定有机化合物化学性质的原子或原子团。
Polymer（聚合物）：由许多重复单元组成的大分子化合物。
2. 无机化学Inorganic Chemistry（无机化学）：研究不含碳的化合物及其性质的化学分支。
Crystal（晶体）：具有规则排列的原子、离子或分子的固体。
OxidationReduction Reaction（氧化还原反应）：涉及电子转移的化学反应。
3. 物理化学Physical Chemistry（物理化学）：研究化学现象与物理现象之间关系的化学分支。
Chemical Bond（化学键）：原子间相互作用力，使原子结合成分子。
Thermodynamics（热力学）：研究能量转换和物质性质的科学。
4. 分析化学Analytical Chemistry（分析化学）：研究物质的组成、结构和性质的科学。
完整版)化学专业英语
完整版)化学专业英语Teaching Material for Scientific EnglishI。
Naming of XXX1.Naming of XXXThe English word for both "元素" and "单质" is "element"。
To distinguish een the two。
"free element" may be used when emphasizing "单质"。
Therefore。
the English names for XXX are the same。
The following are the names of elements that are also names of free elements:Group IA:XXXXXXSodiumGroup IIA:XXXMagnesiumGroup IIIA: Boron AluminumGroup IVA: Carbon Silicon GermaniumGroup VA: Nitrogen PhosphorusGroup VIA: Oxygen Sulfur XXXXXXPoloniumGroup VIIA: Fluorine Chlorine Bromine IodineXXXGroup 0: XXXNeon ArgonXXX Xenon RadonGroup IA: Potassium CalciumGroup IIA:RubidiumCesiumFranciumGroup IIIA:GalliumIndiumXXXGroup IVA:ArsenicXXXXXXXXXLead2.Naming of CompoundsCompounds are named from left to right according to their chemical formula。
英文版化学实验报告
Abstract:The objective of this experiment was to prepare iron(III) chloride (FeCl3) by the reaction of iron (Fe) with chlorine gas (Cl2). The experiment aimed to determine the reaction yield and to analyze the purity of the obtained product. The reaction was conducted in a fume hood, and the reaction yield was calculated based on the initial mass of iron and the mass of the resulting iron(III) chloride. The purity of the product was determined by performing qualitative analysis using spectroscopic techniques.Introduction:Iron(III) chloride is a yellowish-green crystalline solid that is widely used in various applications such as dyes, pharmaceuticals, and water treatment. It is also used as a catalyst in organic synthesis. In this experiment, iron(III) chloride was prepared by the reaction of iron with chlorine gas. The balanced chemical equation for the reaction is:2Fe + 3Cl2 → 2FeCl3The reaction is exothermic, and the iron(III) chloride formed is highly reactive and hygroscopic. Therefore, it is crucial to perform the experiment in a controlled environment and handle the chemicals with appropriate safety measures.Materials:1. Iron (Fe) metal2. Chlorine gas (Cl2)3. Fume hood4. Crucible5. Tongs6. Weighing balance7. Spectrophotometer8. Spectroscopic standards for iron(III) chlorideProcedure:1. Weigh the iron metal accurately using a weighing balance and transfer it to a crucible.2. Place the crucible in a fume hood and ensure that the hood is functioning properly.3. Gradually introduce chlorine gas into the fume hood, ensuring that the flow rate is controlled.4. Use tongs to hold the crucible and heat it gently using a Bunsen burner until the iron metal starts to react with the chlorine gas.5. Observe the reaction, which will be indicated by the formation of a reddish-brown smoke and the evolution of heat.6. Continue heating the reaction mixture until no further reaction is observed, and the crucible starts to cool down.7. Allow the crucible to cool to room temperature in the fume hood.8. Transfer the solid product to a clean crucible and weigh it using a weighing balance.9. Calculate the reaction yield by subtracting the initial mass of iron from the mass of the resulting iron(III) chloride.10. Perform qualitative analysis using a spectroscopic technique to determine the purity of the obtained iron(III) chloride.Results:The initial mass of the iron metal used was 0.873 g, and the mass of the resulting iron(III) chloride was 1.347 g. Therefore, the reaction yield was calculated as follows:Reaction yield = (mass of iron(III) chloride / initial mass of iron) × 100%Reaction yield = (1.347 g / 0.873 g) × 100% = 154.7%The purity of the obtained iron(III) chloride was determined by comparing the absorbance of the sample with the absorbance of spectroscopic standards. The calculated purity was found to be 98.5%.Discussion:The experiment was successful in preparing iron(III) chloride from iron and chlorine gas. The reaction yield of 154.7% indicates that the reaction was highly exothermic, and the iron metal was completely consumed in the reaction. However, the reaction yield is slightly higher than the theoretical yield, which may be due to the incompleteconversion of iron to iron(III) chloride or the formation of impurities during the reaction.The purity of the obtained iron(III) chloride was determined to be 98.5%, which is considered to be a good purity level for this compound. The qualitative analysis using spectroscopic techniques confirmed the presence of iron(III) chloride in the product.Conclusion:In conclusion, the experiment successfully prepared iron(III) chlorideby the reaction of iron with chlorine gas. The reaction yield and purity of the obtained product were determined, and the results were within acceptable limits. The experiment provided valuable insights into the reaction kinetics and purity analysis techniques.。
化学实验报告英语
Experiment Title: Determination of the Molar Mass of an Unknown CompoundObjective:The objective of this experiment is to determine the molar mass of an unknown compound using the ideal gas law and the density of the compound.Introduction:In this experiment, we will use the ideal gas law and the density of a gas to determine the molar mass of an unknown compound. The ideal gas law states that the pressure, volume, temperature, and number of moles of a gas are related by the equation PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant, and T is the temperature. By measuring the pressure, volume, and temperature of a known mass of the unknown compound, we can calculateits molar mass.Materials:1. Unknown compound2. Gas syringe3. Thermometer4. Balance5. Beaker6. Ice bath7. Room temperature and pressure conditions8. Data tableProcedure:1. Weigh the unknown compound using a balance and record its mass.2. Place the unknown compound in a beaker.3. Connect the gas syringe to the beaker and fill it with the unknown compound.4. Record the pressure, volume, and temperature of the gas using the gas syringe and thermometer.5. Calculate the number of moles of the unknown compound using the ideal gas law equation PV = nRT.6. Calculate the molar mass of the unknown compound by dividing its mass by the number of moles.Results:Mass of unknown compound: 1.23 gPressure: 1.0 atmVolume: 50.0 mLTemperature: 25.0°CUsing the ideal gas law equation PV = nRT, we can calculate the number of moles of the unknown compound as follows:n = (PV) / (RT)n = (1.0 atm 0.0500 L) / (0.0821 L·atm/mol·K 298 K)n = 0.00203 molNow, we can calculate the molar mass of the unknown compound:Molar mass = mass / molesMolar mass = 1.23 g / 0.00203 molMolar mass = 601.96 g/molConclusion:The molar mass of the unknown compound is 601.96 g/mol. This value is close to the expected molar mass, which indicates that the experimental procedure was successful in determining the molar mass of the unknowncompound. The results obtained in this experiment can be used for further analysis and characterization of the unknown compound.。
英文版的化学实验报告
Experiment Title: Synthesis of Ethyl AcetateObjective:The objective of this experiment is to synthesize ethyl acetate, an important ester used in various applications such as perfumes, flavors, and solvents. The reaction involves the esterification of acetic acid and ethanol in the presence of an acid catalyst.Experimental Procedure:1. Materials:- Acetic acid (CH3COOH)- Ethanol (C2H5OH)- Concentrated sulfuric acid (H2SO4)- Sodium chloride (NaCl)- Ice- Sodium bicarbonate (NaHCO3)- Ethyl acetate (product)- Distilled water- Erlenmeyer flask (100 mL)- Conical flask (500 mL)- Round-bottom flask (1000 mL)- Distillation apparatus- Heat source- Stirring rod- Thermometer- pH meter- Safety goggles- Lab coat- Gloves2. Procedure:a. Weigh 10.0 g of acetic acid and 5.0 g of ethanol using an analytical balance and transfer them into an Erlenmeyer flask.b. Add 2 mL of concentrated sulfuric acid to the flask and mix the contents thoroughly using a stirring rod.c. Place the flask in an ice bath to maintain a low temperature throughout the reaction.d. After 1 hour, remove the flask from the ice bath and observe the formation of a cloudy solution.e. Add 10 g of sodium chloride to the flask and mix well.f. Slowly add 50 mL of distilled water to the flask while stirring continuously to dilute the solution.g. Transfer the solution to a conical flask and add 10 g of sodium bicarbonate.h. Stir the solution until the acid is neutralized, as indicated by the disappearance of effervescence.i. Set up the distillation apparatus, ensuring that the distillation flask is connected to the condenser and the receiver.j. Heat the mixture slowl y and maintain a temperature between 70°C and 80°C.k. Collect the distillate in the receiver and observe the formation of ethyl acetate.l. Stop the distillation when the temperature rises above 80°C.m. Remove the receiver and allow the ethyl acetate to cool to room temperature.n. Filter the distillate through a filter paper to remove any impurities.Results:1. The reaction mixture was cloudy after 1 hour of reaction, indicating the formation of ethyl acetate.2. The addition of sodium bicarbonate neutralized the acid, causing the disappearance of effervescence.3. The distillation process yielded approximately 10 mL of ethyl acetate, as observed in the receiver.4. The pH of the reaction mixture before neutralization was 2.5, indicating the presence of excess acid.5. The pH of the neutralized mixture was 7, indicating complete neutralization.Discussion:The synthesis of ethyl acetate involves the esterification reaction between acetic acid and ethanol in the presence of an acid catalyst. The reaction proceeds via the formation of an intermediate, the acetyl ethoxide, which then reacts with water to produce ethyl acetate andacetic acid. The addition of concentrated sulfuric acid serves as a catalyst to facilitate the reaction.The formation of a cloudy solution after 1 hour of reaction suggests the successful formation of ethyl acetate. The addition of sodiumbicarbonate neutralizes the excess acid, allowing the ethyl acetate tobe isolated as a distillate. The distillation process is essential for separating the ethyl acetate from the remaining impurities and water.The yield of ethyl acetate obtained in this experiment is approximately 10 mL, which is consistent with the expected yield based on the stoichiometry of the reaction. The reaction conditions, such astemperature and reaction time, play a crucial role in achieving the desired yield and purity of the product.Conclusion:In this experiment, the synthesis of ethyl acetate was successfully achieved through the esterification reaction of acetic acid and ethanol in the presence of an acid catalyst. The reaction mixture was neutralized using sodium bicarbonate, and the ethyl acetate was isolated by distillation. The yield of ethyl acetate obtained was consistent with the expected yield, and the reaction conditions were optimized to achieve the desired results.References:- Advanced Organic Chemistry: Reactions, Mechanisms, and Structure by Francis A. Carey and Richard J. Sundberg- Organic Chemistry by Jonathan Clayden, Nick Greeves, Stuart Warren, and Peter Wothers。
应用化学英语
应用化学英语（Applied Chemistry English）主要指在化学领域使用英语进行交流和表达时所使用的专业术语、表达方式和技巧。
在实际应用化学研究、工作和学习中，掌握正确和准确的化学英语是非常重要的。
以下是一些常见的应用化学英语词汇和表达方式：1. 化学品和化学物质(Chemicals and Substances):- Chemical: 化学品- Substance: 物质- Compound: 化合物- Element: 元素- Molecule: 分子- Reaction: 反应- Catalyst: 催化剂- Solvent: 溶剂- Solution: 溶液- Acid: 酸- Base: 碱2. 实验和测量(Experiments and Measurements):- Experiment: 实验- Laboratory: 实验室- Procedure: 实验步骤- Measurement: 测量- Analyze/Analysis: 分析- Precipitate: 沉淀- Titration: 滴定- Spectroscopy: 光谱学- Chromatography: 色谱法- Mass spectrometry: 质谱分析3. 材料与物性(Materials and Properties): - Material: 材料- Polymer: 聚合物- Metal: 金属- Compound: 化合物- Organic: 有机的- Inorganic: 无机的- Physical properties: 物性- Chemical properties: 化学性质- Density: 密度- Viscosity: 黏度- Conductivity: 电导率4. 反应和合成(Reactions and Synthesis):- Reactant: 反应物- Product: 产物- Yield: 收率- Kinetics: 动力学- Equilibrium: 平衡- Catalyst: 催化剂- Synthesize/Synthesis: 合成- Hydrolysis: 水解- Oxidation: 氧化- Reduction: 还原这些词汇和表达方式只是应用化学英语中的一小部分，具体的词汇和表达方式还取决于具体领域和应用场景。
化学专业英语课件
题型多样：选择题、填空 题、简答题等
难度适中：适合不同水平 的学生
内容丰富：涵盖化学专业 各个领域
答案解析：详细解答，帮 助学生理解知识点
《化学专业英语》：由化学工业 出版社出版，内容全面，适合初 学者
《化学专业英语阅读》：由化学 工业出版社出版，精选了大量化 学专业英语文章，适合提高阅读 能力
实验步骤：详 细描述实验步 骤，包括仪器、 试剂、操作等
实验结果：描 述实验结果， 包括数据、图
表、结论等
实验讨论：分 析实验结果， 提出假设、解
释、结论等
实验报告：撰 写实验报告， 包括实验目的、 方法、结果、 讨论、结论等
阅读目的：了 解研究领域最 新进展，掌握
研究方法
阅读技巧：快 速浏览摘要、 引言和结论， 详细阅读实验
提高化学专业学 生的英语水平
帮助学生理解化 学专业术语和概 念
增强学生的跨文 化交流能力
提高学生的学术 研究和论文写作 能力
化学专业学 生
化学研究人 员
化学教师
对化学感兴 趣的人士
内容全面：涵盖化学专业的基础知识、实验操作、研究方法等
语言地道：采用专业英语，有助于提高学生的英语水平
互动性强：提供丰富的案例、实验、讨论等互动环节，提高学生的学 习兴趣 实用性强：结合实际应用，帮助学生更好地理解和掌握化学专业知 识
汇报人：PPT
添加标题 lusion
阅读目的：了解化学领域的最新研究成果和趋势 阅读方法：选择合适的文献来源，如学术期刊、会议论文等 阅读技巧：注意关键词、摘要、结论等关键信息，提高阅读效率 阅读后思考：对文献内容进行总结和思考，提出自己的观点和见解
联想记忆法：将新词汇与已知词汇或生活场景联系起来记忆
化学专业英语实验报告
In the physiological saline the sodium chloride content determinationone, the experimental goal1、 the study silver nitrate standard solution configuration and the demarcation method2、 the grasping law raises Si Fa to determine the chloride ion the method principletwo, the experimental principleWith AgNO3 standard solution titration Cl - Ag + + Cl - = = AgCl，At ph 7.0 -10.5 available fluorescent yellow do indicator (HFIn)HFIn = = FIn (yellow) + H +Sp before: excessive, AgCl precipitation adsorption of Cl -AgCl Cl - + FIn - (yellow-green)After Sp: Ag +, excessive AgCl precipitation Ag + adsorption, adsorption FIn - reprecipitationAgCl, Ag + + FIn - = = AgCl, Ag +, FIn - (pink)The finish color changes: from yellowish green to orange Three, instruments and reagentsEquipment and materials：Acid type buret (150 ml), taper bottle (250 ml), volumetric flask (100 ml), pipette (20 ml, 10 ml), measuring cylinder (100 ml, 10 ml), beaker (100 ml), brown reagent bottles (500 ml), analytical balance, platform scale.The reagent and drug: Analysis of AgNO3 (s, pure), NaCl (s, analysis of pure), physiological saline, fluorescent yellow - starch. Fourth, the experimental stepsAccurately moving 25 ml concentration is 0.7064 mol ╱ L of silver nitrate standard solution in the middle of 250 ml volumetric flask, dilute to scale as a standard solution titration.Accurately moving saline 10.00 ml to 250 ml conical flask, add 50 ml water, 3 drops of fluorescent yellow indicator, 5% starch indicator 5 ml, under continuous agitation, using silver nitratestandard solution titration to solution from yellow to pink is the end point. Record the consumption volume of silver nitrate standard solution, parallel determination of 3, calculate the sodium chloride content in saline and relative mean deviation.Fifth, data recording and processingFormula: ρ = V×Mr NaCl×C AgNO3 x 100The average deviation d=0.01300 d r=d/ρ×100%=0.13%。
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dropwise to a solution of 1,3-propanediol (29.9 g,
0.393 mol) and ethyl chloroformate (85.4 g, 0.786
mol) in 2L of THF at 0 oC over a period of 30 min.
Generally, an experimental section mainly consists
three parts, that is:
Chemicals (Materials), Synthesis (preparation),
and Characterization
Experimental
PVA is poly (vinyl alcohol) 聚乙烯醇
一、原材料的来源及准备(Chemicals or Materials)
Hale Waihona Puke All materials, such as potassium hexacyano-cobaltate (III) (K3Co(CN)6), zinc fluoride (ZnF2), zinc chloride (ZnCl2), zinc bromide (ZnBr2), zinc iodide (ZnI2) and tertiary butyl alcohol (tBuOH) were purchased from Aldrich and used without further purification.
一、原材料的来源及准备(Chemicals or Materials) 2. 直接购买的普通溶剂或辅助药品只需简单提及或略 过
All other materials were commercially available and used as received unless otherwise noted. All other chemicals were of analytical grade and were used as received.
Experimental
Preparation of catalysts
A solution of ZnCl2 (220 mmol) in deionized water(115 mL) and tBuOH (21 g) is taken in the first beaker (solution 1). A solution of K3Co(CN)6 (3.15 g, 9.5 mmol) in deionized water (42 mL) is taken in the second beaker (solution 2). The third beaker contains a mixture of deionized water (1 mL), tBuOH (20 mL) and PTMEG (3.5 g) (solution 3). Solution 2 is added to solution 1 dropwise for a period of over 60 min at 50 oC with continuous stirring using a mechanical stirrer. Solution 3 is then added and the mixture is stirred for an additional 3 min. The mixture is then centrifuged. The resulting catalyst (DMC-Cl) cake is dried at 60 oC under vacuum (30 inHg) to a constant weight. The catalysts using ZnF2 (DMC-F), ZnBr2 (DMC-Br) and ZnI2 (DMC-I) were prepared by similar procedures.
二、阐述目前该领域的研究现状﹑存在问题﹑ 待解决的问题
Although … has been investigated extensively, very few literatures reported …
However, … have so far not been studied. Unfortunately, the current method suffers from certain limitations. though, whereas, on the other hand, but … Thus, there is a need to …
化学实验中使用的药品按照纯度的不同常可以分为： industrial grade 工业级 ； analytical grade 分析级 ； spectral grade 光谱级
一、原材料的来源及准备 (Chemicals or Materials) 3. 需经纯化处理的药品一般需说明纯化方法
Bisphenol A was recrystallized from chlorobenzene. Dichloromethane was distilled prior to use and stored over molecular sieves. Molecular sieves were activated at 350oC for 10 h under N2 before use.
synthesized
following a procedure described elsewhere.25 The product was recrystallized twice from
diethyl ether. White crystal was obtained in
55% yield: (mp 45°C). The 1H-NMR spectrum (4H, 4.50 ppm; 2H, 2.21 ppm) was consistent with that reported previously.25
chlorine —Cl2 bromine —Br2 iodine —I2
Polymerization grade of poly( tetramethylene ether glycol) (PTMEG, molecular weight =1800) was donated by BASF Korea Ltd.
under vacuum. The residue was recrystallized three
times from THF-ether.
Experimental
Synthesis of trimethylene carbonate <小标题>
Trimethylene
carbonate
was
Herein we demonstrated that …
专业英语课件
Part 6
Experimental
The format of an experimental section should be
in accordance with the requirement of the journal you choose.
H2N
N
2-(2-amino-ethyl)pyridine
ZnEt2 （diethylzinc）was purchased from Aldrich and was used as received.
Amino acid 氨基酸 amine 胺 ammonia 氨 Ammonium 铵 pyridine 吡啶
二.实验过程
研究对象为化学合成的产物要说明具体合成方法：
1.若参考已知的方法，此部分应指明合成方法的出处
…was prepared by the method of … [10]. …was synthesized according to Ref. [4].
…were synthesized according to
专业英语课件
Part 5
Introduntion
一、介绍研究背景(background)﹑ 研究意义
二、阐述目前该领域的研究现状﹑存在问题﹑
待解决的问题
三、指出本文的研究内容﹑目的及其独到之处
Introduction
一、介绍研究背景(background)﹑ 研究意义
Since the early 1960s, …has attracted much attention due to … In recent years, more and more attention has been paid
HO N
2-hydroxypyridine
一、原材料的来源及准备(Chemicals or Materials)
The starting materials were Li3PO4 (99%, Aldrich) and Fe3(PO4)· 2O (99%, Aldrich). 8H An appropriate amount of PVA (degree of polymerization 1500, Junsei) as the carbon source was added to the raw materials.
to …
Very recently, it was reported that …
…have recently evoked a lot of interest.