MSDS-氟利昂-R134a

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R134a的介绍

---------------------------------------------------------------最新资料推荐------------------------------------------------------R134a的介绍R134a 制冷剂 R134a 制冷剂是一种新型无公害制冷剂，属于氢氟化碳化合物（四氟乙烷）。

它具有与 R12 相似的热物理性质，标准沸点为-26.1℃。

但臭氧消耗潜能为零，温室效应潜能在 0.24~0.29 之间。

常温常压下 R134a 无色，有轻微醚类气体味，不易燃，没有可测量的闪点，对皮肤眼睛无刺激，不会引起皮肤过敏，但暴露时会产生轻微毒气，工作场所应通风良好， R134a 是不溶于矿物油的制冷剂，他采用脂类油、合成油（往复式压缩机用）或烷基苯油（旋转式压缩机用）来满足压缩机的润滑要求。

相对于 R12 制冷剂，R134a 制冷剂无毒、不可燃，R134a 制冷剂化学性质稳定、热力性非常接近 R12，但材料兼容性差，与矿物油不相容、易吸水。

R134a 与 R12 吸水最大饱和含量对比如表 6-1-1 所示（-40℃，PPM）表 6-1-1 R134a 与 R12 对比状态液体气体R134a R12 150 45 1.6 442.R134a 对制冷系统零部件的技术要求（相对于 R12 制冷剂）（1）压缩机选型应比汽缸容积大一级。

（2）毛细管应加长 10%~15%。

（3）蒸发器和冷凝器可保持不变，也可适当加大冷凝器的面积以降低冷凝压力。

（4）制冷剂充注量减少 10%~15%。

1/ 10（5）采用 XH-7 或 XH-9 型干燥过滤器。

3.R134a 制冷剂纯度技术要求（1）纯度（2）蒸发残留物（3）酸（以 HCI 计）（4）水（5）CFC 及HCFC ≥99.95% ≤10ppm ≤1ppm ≤10ppm ≤100ppm4.R134a 制冷剂对制冷系统的清洁度、含水量、真空技术要求---------------------------------------------------------------最新资料推荐------------------------------------------------------ （1）清洁度及含水量；①制冷管路：含水量：≤100mg/m2(内表面积)；含杂质量：≤60mg/m2(内表面积)。

MSDS_R-134A

MATERIAL SAFETY DATA SHEET___________________________________________1. Chemical Product and Company IdentificationR- 134aGeneral Use: RefrigerantManufacturer / Distributor:ZHEJIANG XINGTENG CHEMICAL CO..LTD.Jinxi Development Area, Jinhua, Zhejiang, ChinaTel:0086-579-2660341 Fax: 0086-579-2660299Emergency Phone No.: 0086-579-2660119Alternate names: R134a, HFC134a，KLEA134A_____________________________________________________________________ 2. Composition Information on IngredientsIngredients: %(Wt)1,1,1,2-Tetrafluoroethane (CAS 811-97-2)_____________________________________________________________________ 3. Hazards IdentificationEmergency Overview:Appearance: Colorless liquified gas with faint ethereal odorPhysical hazards*: Compressed liquified gasHealth hazards': Harmful (central nervous system depression, cardiac arrhythmias)*Hazard summary (as defined by OSHA Hazard Comm. Std., 29 CFR 1910.1200): Potential Health Effects:General: The health hazard assessment is based on toxicity studies together with information from a search of the scientific literature and other commercial sources. lngestion: Extremely unlikely to occur in use.Eye contact: Liquid splashes or vapor spray may cause freeze burns.Skin contact: The liquid form of this product may cause freeze burns (frostbite-like lesions).Skin absorption: This product will probably not be absorbed through human skin. Inhalation: Exposure to very high vapor concentrations can induce anesthetic effects progressing from dizziness, weakness, nausea, to unconsciousness. It can act as an asphyxiant by limiting available oxygen. Very high doses can cause abnormal heart rhythm which is potentially fatal.Other effects of overexposure: None expected.4.First Aid MeasuresSkin: Thaw affected area with water. Remove contaminated clothing. Caution: clothing may adhere to the skin in case of freeze burns. After contact with skin, washimmediately with plenty of warm water. If symptoms (irritation or blistering) develop, get medical attention.Eyes: Immediately flush with plenty of water. After initial flushing, remove any contact lenses and continue flushing for at least 15 minutes. Have eyes examined and treated by medical personnel.Ingestion: Not applicable.Inhalation: Remove victim to fresh air. Keep warm and at rest. If not breathing, give artificial respiration, preferably mouth-to-mouth. If breathing is labored, give oxygen. In the event of a cardiac arrest, apply external cardiac massage. Do not administer adrenaline or similar sympathomimetic drugs as cardiac arrhythmias may result. Get immediate medical attention._____________________________________________________________________ 5. Fire Fighting MeasuresFlashpoint and method: Does not flashAutoignition temperature: Not applicableFlammable limits (STP): NonflammableGeneral hazards: Compressed liquified gas.Heavy vapors can suffocate.HFC 134a is not flammable in air under ambient conditions of temperature and pressure. Under conditions of high temperature and pressure, certain HFC 134a/air mixtures were shown to be flammable. Mixtures of HFC 134a and air or oxygen should not be used for pressure or leak testing.Certain mixtures of HFC134a and chlorine may be flammable under some conditions. Thermal decomposition will evolve toxic and irritant vapors.Firefighting instructions: Not applicable. Use media suitable for surrounding fire. Use water spray to cool containers.Firefighting equipment: Self-contained breathing apparatus with full facepiece and protective clothing.Hazardous combustion products: Highly toxic decomposition products._____________________________________________________________________ 6. Accidental Release MeasuresPrecautions should take into account the severity of the leak or spill. For large releases: Use recommended personal protection and evacuate unprotected personnel. Shut off the leak if without risk. Ventilate the spill area. If possible, dike and contain spillage. Prevent liquid from entering sewers, sumps or pit areas since vapor can create a suffocating atmosphere. Capture material for recycle or destruction if suitable equipment is available.7. Handling and StorageStorage temperature: Keep at temperature not exceeding 120 deg. F. (49 deg. C.). Storage: Keep in a cool, well ventilated place. Keep containers dry. Keep away from direct sunlight, heat and sources of ignition.Handling: Avoid causing and inhaling high concentrations of vapor. Atmospheric levels should be controlled to below the occupational exposure limit and kept as lowas practicable.Do not put mixture of HFC134a with air or oxygen under pressure; do not use such mixtures for leak or pressure testing.Avoid HFC134a contact with flame or very hot surfaces.____________________________________________________________________ 8. Exposure Controls/Personal ProtectionExposure guidelines: No ACGIH TLV or OSHA PEL assigned. WEEL (AIHA): 1,000 ppm 8 hr TWA. Minimize exposure in accordance with good hygiene practice. INEOS FLUOR has established an occupational exposure limit of 1,000 ppm (8hr TWA) for this material. Engineering controls: Ventilate low-lying areas such as sumps or pits where dense vapors collect. Use ventilation adequate to maintain safe levels. Provide eyewash station in work area.Respiratory protection: Not normally needed if controls are adequate. If needed, use MSHA-NIOSH approved respirator for organic vapors. For high concentrations and oxygen-deficient atmospheres, use positive pressure air-supplied respirator. Protective clothing: Impervious gloves if any possibility of skin contact with liquid. Additional protection may be required such as apron, arm covers, or full body suit, depending upon conditions.Eye protection: Chemical tight goggles; full faceshield in addition if splashing is possible.___________________________________________________________9. Physical and Chemical PropertiesAppearance; Colorless liquified gasBoiling point: -15.1 deg. F., -26.2 deg C.Vapor pressure (mmHg at 20 deg . C.): 4268Vapor density (air = 1): 3.3Solubility in water: Very lowpH: Not applicableSpecific gravity: 1.23 at 20 deg. C.% V olatile by volume: 100___________________________________________________________10. Stability and ReactivityStability: Stable under normal conditions.Incompatibility: Finely divided metals, magnesium and alloys containing more than 2% magnesium. Can react violently if in contact with alkali or alkali earth metals such as sodium, potassium or barium.Stability and Reactivity (continued)Hazardous decomposition products: Hydrogen fluoride by thermal decomposition and hydrolysis.Hazardous polymerization: Will not occur._____________________________________________________________________ 11. Toxicological InformationPossible Human Health Effects:Inhalation: High atmospheric concentrations may lead to anesthetic effects, including loss of consciousness. Very high exposures may cause an abnormal heart rhythm and prove suddenly fatal. Higher concentrations may cause asphyxiation due to reduced oxygen content of the atmosphere.Skin contact: Liquid splashes or spray may cause freeze burns. Unlikely to be hazardous by skin absorption.Eye contact: Liquid splashes or spray may cause freeze burns.Ingestion: Highly unlikely, but should this occur, freeze burns will result.Animal data:The inhalation 4 hour LC50 in rats was greater than 500,000 ppm HFC 134a.Slight eye irritation resulted from a brief spray of vapor.The material was a slight skin irritant, but not a skin sensitizer.The threshold for cardiac sensitization (arrhythmias) in dogs pretreated with epinephrine was an atmosphere of 75,000 ppm. The no observed effect level (NOEL) was 50,000 ppm. No effect of any kind was seen in a 90 day inhalation study in the rat at dose levels up to, and including 50,000 ppm (6 hours per day, 5 days per week).No developmental effects were seen in the rabbit following inhalation exposure to 40,000 ppm during gestation despite slight maternal toxicity. In a range-finding study in the rabbit, possible minimal embryolethality was seen at a dose level of 50,000 ppm. In the rat, slight fetotoxicity was present at an inhalation dose of 50,000 ppm administered during gestation and no effects were seen at 10,000 ppm. In another study in the rat, no developmental effects were seen at a dose of 100,000 ppm in the presence of slight maternal toxicity; clear maternal effects were followed by embryotoxicity and fetotoxicity at a dose level of 300,000 ppm. There were no increases in the incidence of fetal malformations in rats or rabbits at doses up to and including 300,000 ppm and 50,000 ppm, respectively.HFC 134a showed no genetic toxicity in a range of in-vitro and in-vivo tests. No adverse effects were found in a study in which rats were followed to week 104 after receiving 300 mg/kg bodyweight/day of HFC134a by gavage for 52 weeks. In a 2-year inhalation study inrats, no adverse effects of any kind were observed except increased incidences of non-life threatening, benign, microscopic testicular interstitial (Leydig) cell tumors and associated interstitial cell hyperplasia which were confined to the top dose of 50,000 ppm.12. Ecological InformationPersistence and degradation: Decomposes comparatively rapidly in the lower atmosphere (troposphere). Atmospheric lifetime is 15.6 years. Products of decomposition will be highly dispersed and hence will have a very low concentration. It is not a significant contributor to photochemical smog and is not considered to be a VOC. Is not considered an ozone depleting chemical.Effect on effluent treatment: Discharges of the product will enter the atmosphere and will not result in long term aqueous contamination.____________________________________________________________________13. Disposal ConsiderationsDisposal method: Discarded product is not a hazardous waste under RCRA, 40 CFR 261. However, HFC134a should be recycled, reclaimed or destroyed whenever possible. Container disposal: For disposable (DOT 39) cylinders only. Do not distribute, make available, furnish or reuse empty container when once emptied of the original product. Open valve to remove pressure in the cylinder. Then puncture, drill, crush or otherwise destroy empty cylinder and dispose of in a facility permitted for nonhazardous waste._____________________________________________________________________ 14. Transport InformationDOT Hazard Description:Proper Shipping Name: 1,1,1,2-TETRAFLUOROETHANE (Rl34A)Hazard Class: 2.2Identification Number: UN 3159Packing Group): NoneHazardous Substance (RQ): NonePlacard/Label: NON-FLAMMABLE GAS________________________________________________________________ 15. Regulatory InformationTSCA (Toxic Substances Control Act) Regulations, 40 CFR 710: All Ingredients are on the TSCA Chemical Substances Inventory.CERCLA and SARA Regulations (40 CFR 355, 370 and 372): This product does not contain any chemicals subject to reporting requirements of SARA Section 313.________________________________________________________________ 16. Other InformationThe information herein is given in good faith, but no warranty, expressed or implied, is made.*** Indicate changes since prior revision.。

MSDS-氟利昂-R134a

MSDS－氟利昂-134aARKEMA(阿克玛)公司第一部分化学品及企业标识化学品中文名称：氟利昂-134a化学品英文名称：Freon -134a主要用途：企业名称：法国阿克玛（ARKEMA）公司地址：D. FLUORES ET OXYGEKES Cours Michelct - La Defense 10 92091 PARIS LA DEFENSE CEDEX FRANCE电话：01 49 00 80 80传真：01 49 00 83 96企业应急电话：33 1 49 00 80 80技术说明书编码：00941生效日期：2003年9月 3日国家应急电话：（0532）第二部分危险性概述主要危害：----健康危害：基本无害爆燃危险：受热分解产生有毒和腐蚀性物质。

在一定的温度和压力下，气态产品能与空气形成易燃混合物。

第三部分成分/组成信息化学品名称通用名CAS No EINECS1，1，2，2-四氟乙烷卤代烃811-97-2212-377-0第四部分急救措施吸入：移至空气新鲜处。

如有症状持续，就医。

皮肤接触：冻伤，按热烫伤处理。

眼睛接触：立即用大量清水彻底冲洗，如果刺激持续，眼科就医。

食入：误服者漱口，饮牛奶或蛋清，就医。

施救人员防护：通风不良时，佩戴合适的呼吸器。

医生须知：禁止给伤员服用儿茶酚胺（因为此产品有强心作用）。

第五部分消防措施危险特性：高温热分解放出有毒和腐蚀性物质：氟化氛、碳氧化物。

防火注意事项：禁止所有火花和点火源，严禁吸烟。

用雾状水冷却容器/罐。

确保有容器快速排空系统。

火灾情况下，转移火场中的容器至安全处。

消防人员防护：灭火时，佩戴自给式呼吸器。

第六部分泄漏应急处理个体防护：避免与眼睛、皮肤接触，避免吸入蒸气。

在封闭区域：通风或佩戴自给式呼吸器（有缺氧危险）。

消除所有点火源。

严禁吸烟。

第七部分操作处置与储存操作处置注意：----技术预防措施：贮存和操作处置注意：液化气体。

在工作场所，确保适当的排气和通风。

R134a制冷剂的化学性质及特性介绍

R134a制冷剂的化学性质及特性介绍R134a（SUVA 134a），化学名：1,1,1,2-- 四氟乙烷，分子组成：CH2FCF3，CAS注册号：811-97-2，分子量：102.0，HFC型制冷剂，ODP值为零。

R134a 的热力和物理性质，以及其低毒性，使之成为一种非常有效和安全的替代品。

HFC-134a可用在目前使用CFC-12（二氯二氟甲烷）的许多领域，包括：汽车空调、家用电器、小型固定制冷设备、超级市场的中温制冷、工商业的制冷机，聚合物发泡，气雾剂产品，以及镁合金保护气体等。

R134a 作为新一代的环保制冷剂，用于替代R12（二氯二氟甲烷），R22，主要应用于汽车空调，冰箱，冷柜，饮水机，除湿机，中央空调(冷水机组)等制冷空调设备中。

用作保护气体：用于镁合金加工上的保护气体。

用于聚合物发泡：聚合物发泡。

用于气雾剂：HFC-134a也可用于那些对毒性和可燃性要求严格的气雾剂中；由于HF C-134a 的低毒和不易燃性，它被研制用于药物吸入剂的载体（即医用气雾剂）。

压缩机生产商通常建议使用多元醇酯POE（Polyol Ester）和聚二醇PAG（Polyalkylen e Glycol）（汽车空调）冷冻机油。

HFC-134a的主要物化性质
中温制冷情况下CFC-12和HFC-134a理论性能的对照。

R134a性能参数

R134a性能参数R134a作为使用最广泛的中低温环保制冷剂，由于HFC-134a良好的综合性能，使其成为一种非常有效和安全的CFC-12的替代品，主要应用于在使用R12制冷剂的多数领域。

性状用途完全不破坏臭氧层，是当前世界绝大多数国家认可并推荐使用的环保制冷剂，也是目前主流的环保制冷剂，广泛用于新制冷空调设备上的初装和维修过程中的再添加。

主要用途R-134a作为使用最广泛的中低温环保制冷剂，由于HFC-134a良好的综合性能，使其成为一种非常有效和安全的CFC-12的替代品，主要应用于在使用R12制冷剂的多数领域，包括：冰箱、冷柜、饮水机、汽车空调、中央空调、除湿机、冷库、商业制冷、冰水机、冰淇淋机、冷冻冷凝机组等制冷设备中，同时还可应用于气雾推进剂、医用气雾剂、杀虫药抛射剂、聚合物（塑料）物理发泡剂，以及镁合金保护气体等。

R-134a是目前国际公认的CFC-12最佳的环保替代品。

HFC-134a不含氯原子，对臭氧层不起破坏作用，具有良好的安全性能（不易燃、不爆炸、无毒、无刺激性、无腐蚀性）；其制冷量与效率与CFC-12非常接近，所以视为优秀的长期替代制冷剂。

HFC-134a可广泛用做汽车空调，冰箱、中央空调、商业制冷等行业的制冷剂，并可用于医药、农药、化妆品、清洗行业。

物理性质用钢瓶包装，规格有200g、250g、300g、13.6kg，100kg，400kg，800kg，充装系数不大于1.1kg/L，必须贮存在阴凉、干燥和通风的地方，避免日晒、雨淋。

R134a作为R12的替代制冷剂，它的许多特性与R12很相像R134a的毒性非常低，在空气中不可燃，安全类别为A1，是很安全的制冷剂。

R134a的化学稳定性很好，然而由于它的溶水性比R22高，所以对制冷系统不利，即使有少量水分存在，在润滑油等的作用下，将会产生酸、二氧化碳或一氧化碳，将对金属产生腐蚀作用，或产生“镀铜”作用，所以R134a对系统的干燥和清洁要求更高。

氟利昂MSDS-安全技术说明书

辛醇/水分配系数的对数值
燃烧热（KJ/moI）:无意义
临界温度（℃）：96 临界压力（Mpa）：4.91
折射率：1.252（26.5℃）
溶解性：溶于水。
十、稳定性和反应活性
稳定性：稳定聚合危害：不聚合
避免接触的条件
禁忌物：强氧化剂、易燃或可燃物。
燃烧(分解)产物：一氧化碳、二氧化碳、氟化氢。
十一、毒理学资料
眼睛防护：一般不需要特殊防护。
身体防护：穿一般作业工作服。
手防护：戴一般作业防护手套。
其它：避免高浓度吸入。进入罐、限制性空间或其它高浓度区作业，须有人监护。
九、理化性质
熔点（℃）：-146 沸点（℃）：-40.8
相对密度：（水＝1）：1.18
相对密度（空气＝1）：3.0
饱和蒸气压（kPa）:13.33（-76.4℃）
四、急救措施
皮肤接触：
眼睛接触：
吸入：迅速脱离现场至空气新鲜处，保持呼吸道通畅。如呼吸困难，给输氧。如呼吸停止，立即进行人工呼吸。就医。
食入：误服者用水漱口，给饮牛奶或蛋清。就医。
五、燃爆特性与消防
燃烧性：不燃
危险特性：若遇高热，容器内压增大，有开裂和爆炸的危险。灭火方法：本品不燃。切断气源。喷水冷却容器，可能的话将容器从火场移至空旷处。
包装方法：钢质气瓶。
不燃性压缩气体。储存于阴凉、通风仓间内。仓内温度不宜超过30℃。远离火种、热源。防止阳光直射。应与易燃或可燃物分开存放。验收时要注意品名，注意验瓶日期，先进仓的先发用。搬运时轻装轻卸，防止钢瓶及附件破损。
八、防护措施
工程控制：生产过程密闭，全面通风。
呼吸系统防护：一般不需要特殊防护，高浓度接触时可佩戴自吸过滤式防毒面具（半面罩）。

常用制冷剂R134a的特性

常用制冷剂R134a的特性时间：2021-02-22来源：互联网发布评论进入论坛r134a（suva134a），化学名：1,1,1,2--四氟乙烷，分子组成：ch2fcf3，cas注册号：811-97-2，分子量：102.0，hfc型制冷剂，odp值为零。

r134a的热力和物理性质，以及其低毒性，使之成为一种非常有效和安全的替代品。

hfc-134a可用在目前使用cfc-12（二氯二氟甲烷）的许多领域，包括：汽车空调、家用电器、小型固定制冷设备、超级市场的中温制冷、工商业的制冷机，聚合物发泡，气雾剂产品，以及镁合金保护气体等。

r134a做为新一代的环保制冷剂，用作替代r12（二氯二氟甲烷），r22，主要应用于汽车空调，冰箱，冷柜，饮水机，除湿机，中央空调(冷水机组)等制冷空调设备中。

用作保护气体：用于镁合金加工上的保护气体。

用作聚合物树脂：聚合物树脂。

用于气雾剂：hfc-134a也可用于那些对毒性和可燃性要求严格的气雾剂中；由于hfc-134a的低毒和不易燃性，它被研制用于药物吸入剂的载体（即医用气雾剂）。

压缩机生产商通常建议采用多元醇酯poe（polyolester）和聚二醇pag （polyalkyleneglycol）（汽车空调）冷冻机油。

hfc-134a的主要物化性质物性化学名分子式分子量沸点（1atm）冰点临界温度临界压力临界体积临界密度密度，（液体），25℃密度，（饱和状态蒸气）沸点下热容（液体），25℃单位///℃℃℃kpa(1b/in2abs)m3/kg(ft3/1b)g/m3(1b/ft3)g/cm3(1b/ft3)g/cm3(1b/ft3)hfc-134a1，1，1，2-四氟乙烷ch2fcf3102.03-26.1-103.0101.14060(588.9)0.00194(0.0311)515.3(32.17)1206(75.28)5.25(0.328)kj/kg.k( btu/(1b)f)1.44(0.339)热容（恒压蒸汽），25℃，1atmkj/kg.k(btu/(1b))0.852(0.204)蒸汽压力，25℃蒸发热，沸点下热传导率为，25℃：液体气体（1atm）粘度，25℃：液体气体（1atm）hfc-134a在水中溶解度，25℃，1atm水在hfc-134a的溶解度，25℃空气中可燃性音速，1atm爆胎温度臭氧消耗潜值卤代烷全球温室效应hgwp（cfc-11的hgwp=1）有害物质管理法备案情况kpa(bar)kj/kg(btu/1b)w/mk(btu/hr.ftf)mpa.s(cp)wt%wt%vol%℃//666.1(6.661)217.2( 93.4)0.0824(0.0478)0.0145(0.008360.2020.0120.150.11无77000.281200已报导/包含1000gwp（100yr.ith对co2，gwp=1）//毒性ael*（8和12小时twa）可以承ppm(v/v)许的空气曝露浓度中温空调情况下cfc-12和hfc-134a理论性能的对照-制冷剂（以cfc-12为参照物）cop（性效系数）压缩机排气温度℃（h）排气压力kpa（psia）压比编审：申伯勋cfc-121003.5586.8(188.2)1349(195.6)4.1hfc-134a99.73.4383.1(181.5)1473(213.7)4.7在线投稿│发表评论你说的是机械的膨胀阀,是可以人为的调节主要是节流的作用,电子的膨胀阀是不需要人去调节的是自己调节的.膨胀阀的结构和工作原理1热力膨胀阀的促进作用：热力膨胀阀安装在蒸发器入口，常称为膨胀阀，主要作用有两个：1）节流做用：高温高压的液态制冷剂经过膨胀阀的节流孔节流后，成为低温扰动的雾状的液压制冷剂，为制冷剂的冷却创造条件；2）控制制冷剂的流量：进入蒸发器的液态制冷剂，经过蒸发器后，制冷剂由液态蒸发为气态，吸收热量，降低车内的温度。

(完整word版)氟利昂MSDS-安全技术说明书

吸入：迅速脱离现场至空气新鲜处,保持呼吸道通畅.如呼吸困难，给输氧。如呼吸停止，立即进行人工呼吸.就医。
食入：误服者用水漱口，给饮牛奶或蛋清.就医。
五、燃爆特性与消防
燃烧性:不燃
危险特性：若遇高热，容器内压增大，有开裂和爆炸的危险。灭火方法：本品不燃。切断气源.喷水冷却容器,可能的话将容器从火场移至空旷处。
辛醇/水分配系数的对数值
燃烧热(KJ/moI）:无意义
临界温度（℃）:96 临界压力（Mpa）：4。91
折射率：1。252(26。5℃）
溶解性:溶于水。
十、稳定性和反应活性
稳定性:稳定聚合危害：不聚合
避免接触的条件
禁忌物：强氧化剂、易燃或可燃物.
燃烧（分解）产物:一氧化碳、二氧化碳、氟化氢。
十一、毒理学资料
眼睛防护：一般不需要特殊防护。
身体防护:穿一般作业工作服.
手防护：戴一般作业防护手套。
其它：避免高浓度吸入。进入罐、限制性空间或其它高浓度区作业,须有人监护。
九、理化性质
熔点(℃）:—146 沸点（℃）:-40.8
相对密度:（水＝1）：1.18
相对密度(空气＝1）：3。0
饱和蒸气压（kPa）:13。33（—76。4℃）
一、标识
中文名：一氯二氟甲烷；氟利昂22
分子式：CHCLF2
相对分子质量：86。47
CAS号：75—45-6
危险性类别：第2.2类,不燃气体
化学类别：卤代烷
二、主要组成与性状
主要成份：含量，一级≥99。5%；二级≥99.5%。
外观与性状:无色气体,有轻微的发甜气味。
主要用途：用作致冷剂及气溶杀虫药发射剂。
包装方法：钢质气瓶。
不燃性压缩气体。储存于阴凉、通风仓间内。仓内温度不宜超过30℃。远离火种、热源。防止阳光直射.应与易燃或可燃物分开存放。验收时要注意品名，注意验瓶日期，先进仓的先发用。搬运时轻装轻卸，防止钢瓶及附件破损。

常用制冷剂,R134a的,特性

常用制冷剂R134a的特性时间：2010-02-22 来源：互联网发布评论进入论坛R134a（SUVA 134a），化学名：1,1,1,2-- 四氟乙烷，分子组成：CH2FCF3，CAS注册号：811-97-2，分子量：102.0，HFC型制冷剂，ODP值为零。

R134a 的热力和物理性质，以及其低毒性，使之成为一种非常有效和安全的替代品。

用作保护气体：用于镁合金加工上的保护气体。

用于聚合物发泡：聚合物发泡。

用于气雾剂：HFC-134a也可用于那些对毒性和可燃性要求严格的气雾剂中；由于HFC-134a 的低毒和不易燃性，它被研制用于药物吸入剂的载体（即医用气雾剂）。

压缩机生产商通常建议使用多元醇酯POE（Polyol Ester）和聚二醇PAG（Polyalkylene Glycol）（汽车空调）冷冻机油。

HFC-134a的主要物化性质中温制冷情况下CFC-12和HFC-134a理论性能的对照膨胀阀的结构和工作原理1热力膨胀阀的作用：热力膨胀阀安装在蒸发器入口，常称为膨胀阀，主要作用有两个：1）节流做用：高温高压的液态制冷剂经过膨胀阀的节流孔节流后，成为低温低压的雾状的液压制冷剂，为制冷剂的蒸发创造条件；2）控制制冷剂的流量：进入蒸发器的液态制冷剂，经过蒸发器后，制冷剂由液态蒸发为气态，吸收热量，降低车内的温度。

膨胀阀控制制冷剂的流量，保证蒸发器的出口完全为气态制冷剂，若流量过大，出口含有液态制冷剂，可能进入压缩机产生液击；若制冷剂流量过小，提前蒸发完毕，造成制冷不足；2热力膨胀阀的种类：热力膨胀阀按照平衡方式不同，分内平衡式和外平衡式；外平衡式热力膨胀阀分F型和H型两种结构型式。

R134a制冷剂

R134a制冷剂1. R134a制冷剂R134a制冷剂是一种新型无公害制冷剂，属于氢氟化碳化合物（四氟乙烷）。

它具有与R12相似的热物理性质，标准沸点为-26.1℃。

但臭氧消耗潜能为零，温室效应潜能在0.24~0.29之间。

常温常压下R134a无色，有轻微醚类气体味，不易燃，没有可测量的闪点，对皮肤眼睛无刺激，不会引起皮肤过敏，但暴露是会产生轻微毒气，工作场所应通风良好，R134a是不溶于矿物油的制冷剂，他采用脂类油、合成油（往复式压缩机用）或烷基苯油（旋转式压缩机用）来满足压缩机的润滑要求。

相对于R12制冷剂，R134a制冷剂无毒、不可燃，R134a 制冷剂化学性质稳定、热力性非常接近R12，但材料兼容性差，与矿物油不相容、易吸水。

R134a与R12吸水最大饱和含量对比如表6-1-1所示（-40℃，PPM）R134a与R12对比状态R134a R12液体150 1.6气体45 442.R134a对制冷系统零部件的技术要求（相对于R12制冷剂）（1）压缩机选型应比汽缸容积大一级。

（2）毛细管应加长10%~15%。

（3）蒸发器和冷凝器可保持不变，也可适当加大冷凝器的面积以降低冷凝压力。

（4）制冷剂充注量减少10%~15%。

（5）采用XH-7或XH-9型干燥过滤器。

3.R134a制冷剂纯度技术要求（1）纯度≥99.95%（2）蒸发残留物≤10ppm（3）酸（以HCI计）≤1ppm（4）水≤10ppm（5）CFC及HCFC ≤100ppm4.R134a制冷剂对制冷系统的清洁度、含水量、真空技术要求（1）清洁度及含水量；①制冷管路：含水量：≤100mg/m2(内表面积)；含杂质量：≤60mg/m2(内表面积)。

②压缩机：含水量：≤100mg/台；含杂质量：≤100mg/台。

（2）真空度①单侧抽真空：真空计显示值应≤60Pa；抽真空时间应≥30分钟。

②双侧抽真空：真空计显示值应≤60Pa；抽真空时间≥15分钟。

进口制冷剂产品说明书R134aMSDS

R134a材料安全数据表1.化学产品和公司标识KLEA134a用途：制冷剂同意名：Fluorocarbon 134a, R134a,HFC134a,HFA134a生产厂商：英力士氟化学株式会社MEXICHEM FLUOR JAPAN LTD.NYK TENNOZ BUILDING 14F,2-20，HIGASHI-SHINAGAWA 2-CHOME,SHINAGAW A-KU,TOKYO 140-0002 JAPANISSUING DATE: 2011年1月17日2.化合物成分成分：1，1，1.2-Tetrafluoroethane(CAS 811-97-2)3.危害物标识紧急状况表现为无色的液化气体带有能使人昏迷的乙醚味身体危害性：压缩液化气健康危害性：导致（中枢神经衰弱，心律不齐）对健康状况的潜在影响：摄取：使用中基本不会发生。

眼睛接触：液体的喷溅或者气体的喷雾会导致冻伤。

皮肤接触：本产品的液态形式会导致冻伤。

皮肤吸收：本产品不可能会被人体吸收吸入：暴露在极高浓度的气体中可能导致的麻醉效果包括，头晕眼花、虚弱、恶心、直到失去意识，在密闭空间内还能导致窒息反应，极高浓度的气体还能导致心律不齐的慢性病。

其他：无4.紧急防护措施皮肤：用温水解冻受伤区域，脱下被污染的衣物，警告：衣物可能粘附在冻伤的皮肤上，当情况发生后，立即用大量温水清洗，如果发生症状（疼痛或起泡），立即就医。

眼睛：立即用大量的温水清洗，在第一次清洗完毕后，移除任何残留的污染物继续冲洗15分钟，送医院检查。

摄取：不适用。

吸入：把伤者移到有新鲜空气的地方，保持温暖并休息，如果没有呼吸，释于人工呼吸（建议采用口对口式），如果呼吸困难，供给氧气，如果心脏跳动停止，实施外部心脏按摩术，不要服用含肾上腺素或者仿交感神经类药物，可能会导致心律不齐。

5.火灾措施着火点及应付方法：无临界温度：无易燃度（STP）：不易燃主要有害物质：压缩液态气体气体比重高于空气可以导致窒息Klea 134a在大气中的温度和压力下不可燃。

制冷剂R134a的特点及正确使用

制冷剂R134a的特点及正确使用..新型制冷剂R134a的特点及正确使用长期以来含氯氟利昂R 12（CCL2F2）一直是汽车空调的唯一制冷剂，近年来科学家们发现，R 12的氯会破坏地球上空15km-25km内的臭氧层，从而使更多的太阳能光紫外线能辐射到地球危害到人体健康，因此，国际社会于1987年9月在加拿大缔结了蒙特利尔协议书，明确规定了禁用R 12的期限为2000年，但近年来由于臭氧层的破坏不断加剧，国际社会把R 12R 的完全禁用日期提前到了1995年，发展中国家则可推迟10年。

我国于1992年发文规定：各汽车厂从1996年起在汽车空调中逐步用新制冷剂R 134a 替代R 12，在2000年生产的新车上不准再用R 12。

因此，汽车使手人员和维修人员必须了解和熟悉新制冷剂R134a的特点，以便能够熟练、正确地使用。

1 制冷剂R 134a的主要特点a.R 134a不含氯原子，对大气臭氧层不起破坏作用；b.R 134a具有良好的安全性能（不易燃，不爆炸，无毒，无剌激性无腐性）；c.R 134a的传热性能比较接近，所以制冷系统的改型比较容易。

d.R 134a的传热性能比R 12好，因此制冷剂的用量可大大减少。

2 R 134a与R12制冷系统的主要区别a.存放R 134a的容器为浅蓝色，而存放R 12的容器为白色。

b.R 134a制冷系统连接软管是用橡胶和尼龙特制的，并且在其处部有汽车工程学会的印记（S.A.E.#J2196）；而 R12制冷系统连接软管常用一般橡胶管。

c.R 134a制冷系统连接管有颜色标记（低压管是蓝色带黑色条纹，高压管是红色带黑色条纹，普通管是黄色带黑色条纹）而R 12制冷系统连接管则无标记。

d.R 134a制冷剂入口处使用的是快速接头，而R 12制冷系统估用的是螺纹接口。

e.R 134a制冷系统连接软管与仪表的接头具有1/2in英寸螺纹，且高压口的接头比低压口的大；而R12制冷系统连接软管与仪表的接头具有7/16in螺纹。

2016年--制冷剂安全技术说明书(MSDS)

制冷剂安全技术说明书第一部分：化学品名称化学品中文名称：DuPont（ＴＭ）SUVA（Ｒ）134a制冷剂。

化学品英文名称：DuPont™ SUVA® 134a refrigerant。

其他名称：HFC-134a，SUVA 134a。

推荐的用途：制冷剂。

第二部分：成分/组成信息成分：1，1，1，2-四氟乙烷。

浓度：100%。

CAS No.：811-97-2。

第三部分：危险性概述GHS（全球化学品统一分类和标签制度）危险性类别：压力下气体、液化气体。

GHS（全球化学品统一分类和标签制度）标签要素：①危害类型象形图：②警示词：警告。

③危险性说明：内含压力下气体，遇热可能爆炸。

④危害防范措施：避免日晒，存放于通风良好处。

其它不导致GHS分类或不包括在GHS中的危害：误用或故意滥用吸入，不予警告下可能导致死亡。

蒸汽比空气重，可能因缺氧而造成人员窒息。

液体的迅速气化会引起冻伤。

第四部分：急救措施切勿给失去知觉者从嘴里喂食任何东西。

在症状持续或有疑问情况下，寻求医生建议。

吸入：脱离接触，躺下休息，转移到新鲜空气处，让患者保持暖和和休息，如有必要，进行人工呼吸和/或供氧，请教医生。

皮肤接触：如果接触到了，立即用大量水冲洗皮肤至少15分钟，立即脱掉所有污染的衣服，请教医生。

受污衣服再次使用前要洗涤，如有必要，小心缓慢地温暖受冻的部位。

眼睛接触：如接触到了，立即用大量水冲洗眼睛至少15分钟，如有必要，请教医生。

食入：不认为是潜在的暴露途径。

急性的和延时的最重要症状/影响：无资料。

急救人员的防护：无资料。

给医治人员的提示：不要给予肾上腺素或类似的药物。

第五部分：消防措施灭火方法及灭火剂：根据当时情况和周围环境采用适合的灭火措施。

特别的危险性：压力逐渐增加，着火或强热可能引起包装的破裂。

特殊灭火方法及保护消防人员的特殊防护装备：在着火情况下，使用自给式呼吸器，在失火后清理现场时要戴氯丁橡胶手套，用水喷雾冷却容器/贮槽，用过的水应该被围阻并在流走之前中和。

制冷剂r134amsds英文

制冷剂R134A M S D S英文(总4页)-CAL-FENGHAI.-(YICAI)-Company One1-CAL-本页仅作为文档封面，使用请直接删除Material Safety Data SheetBLUESTAR? 134a1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATIONPRODUCT NAME: BLUESTAR 134aOTHER / GENERIC NAMES: HFC-134a, R-134aCHEMICAL FORMULA: CF3CH2FPRODUCT USE: RefrigerantMANUFACTURE: JIANGSU BLUESTAR GREEN TECHNOLOGY CO. LTD. ADDRESS: 4F KANGMEI MANSION, NO. 9 EAST GATE STREET,JINTAN CITY, JIANGSU PROVINCE, CHINA 213200 TELEPHONE: +86-519- 828822292 COMPOSITION / INFORMATION ON INGREDIENTSINGREDIENT NAME: 1,1,1,2 – Tetrafluoroethane (HFC-134a)CAS NUMBER: 811-97-2TYPICAL WT. %: 100%3 HAZARDS IDENTIFICATIONEMERGENCY OVERVIEWClear, colorless liquefied gas with faint ethereal odor. Non-flammablematerial. Overexposure may cause dizziness, loss of concentration, CentralNervous System depression and cardiac arrhythmia. Asphyxiation in confinedspace if air is displaced by vapors.SKIN CONTACTLiquid or escaping vapor contact may cause frostbite. But this productswill probably not be absorbed through human skin.EYES CONTACTLiquid splashes or vapor spray contact may cause severe irritation and frostbite-likelesions.INHALATIONExposure to an oxygen-deficient atmosphere by displacement of this material, symptoms of asphyxiation, loss of coordination, increased pulse rate anddeeper respiration will occur. Higher levels can cause cardiac arrhythmia.INGESTIONExtremely unlike to ingest. If occurred, some effects of inhalation andskin exposure would be expected.ADDITIONAL EFFECTSIncreased susceptibility to the effects of this material may be observed inpersons with pre-existing disease of Central Nervous System andCardiovascular System.4 FIRST AID MEASURESSKINFlush exposed skin with lukewarm water (not hot). Or cover with a clean,soft cloth or similar covering if water were not available. Get medicalattention if frostbitten or irritation symptoms occurs.EYESImmediately flush with plenty of water for at least 15 minutes. Get medical attention if irritation symptoms occurs.INHALATIONImmediately remove to fresh air. If not breathing, give artificial respiration. If breathing is labored, give oxygen. Get medical attention.Do not give adrenaline, epinephrine or similar drugs.INGESTIONIngestion is not considered a potential route of exposure.NOTES TO PHYSICIANSBecause of the possible disturbances of cardiac rhythm, catecholamine drugs, such as epinephrine, should be used with special caution and only in situations of emergency life support.5 FIRE FIGHTING MEASURESFLAMMABLE PROPERTIESFLASH POINT: No flash pointFLASH POINT METHOD: NAUPPER FLAME LIMIT (volume % in air): NALOWER FLAME LIMIT (volume % in air): NAAUTOIGNITION TEMPERATURE: >743°CEXTINGUISHING MEDIAUse media appropriate for surrounding materials.FIRE FIGHTING INSTRUCTIONSUse water spray to cool containers.FIRE AND EXPLOSION HAZARDSHFC 134a is not flammable in air under ambient conditions of temperatureand pressure. Under conditions of high temperature and pressure, certain HFC 134a/air mixtures were shown to be flammable. Mixtures of HFC 134a and air or oxygen should not be used for pressure or leak testing. Certain mixtures of HFC134a and chlorine may be flammable under some conditions. Thermal decomposition will evolve toxic and irritant vapors.6 ACCIDENTAL RELEASE MEASURESIN CASE OF SPILL OR OTHER RELEASEUse recommended personal protection and evacuate unprotected personnel immediately. Remove ignition sources and shut off leak if without risk. Ventilate the spill area.7 HANDLING AND STORAGEHANDLINGAvoid breathing vapors and liquid contact with eyes, skin or clothing. Do not puncture or drop cylinders, expose them to open flame or excessive heat. Use approved cylinders only. Follow standard safety precautions forhandling and use of compressed gas cylinders. Do not mix HFC134a with airor oxygen above atmospheric pressure for leak testing or any other purpose. STORAGEKeep in a cool, well ventilated place. Keep away from direct sunlight, heat above 49℃(120℉) and any sources of ignition.8 EXPOSURE CONTROLS / PERSONAL PROTECTIONENGINEERING CONTROLSProvide local ventilation at filling zones and areas where leakage is probable. Mechanical exhaust ventilation may be adequate for other operating and storage areas. Provide eyewash station in work area.EYE / FACE PROTECTIONWhere there is reasonable probability of liquid contact, wear chemical safety goggles and have eye flushing equipment available.SKIN PROTECTIONWear appropriate chemical resistant protective clothing and chemical resistant gloves to prevent skin contact. Rinse contaminated skin promptly. Clean protective equipment and wash contaminated clothing before reuse. RESPIRATORY PROTECTIONNone generally required if controls are adequate. For accidental release or non-ventilated situations, or release into confined space, use approved respirator for organic vapors. For high concentrations and oxygen-deficient atmospheres, use positive pressure air-supplied respirator.EXPOSURE GUIDELINESMinimize exposure in accordance with good hygiene practice. KANGTAI has established an occupational exposure limit of 1000 ppm (8hr TWA) for this material.9 PHYSICAL AND CHEMICAL PROPERTIESAppearance / Odor Clear, colorless liquified gas with faint ethereal odor.Boiling point -26.4℃ / -15.5℉Vapor pressure 96 psia at 25°CVapor density 3.5 (Air=1.0)Specific gravity 1.21 at 25°CSolubility in water 0.15% Volatiles 100Evaporation Rate >110 STABILITY AND REACTIVITYSTABILITYChemically stable under specified conditions or storage, shipment and/or use.INCOMPATIBILITYAvoid contact with strong alkalis or alkaline earth metals, finely powered metals such as aluminum, magnesium, alloys containing more than 2% magnesium and zinc & strong oxidizers, since they may react or accelerate decomposition.HAZARDOUS DECOMPOSTION PRODUCTSHydrogen fluoride, hydrogen chloride, carbon monoxide, carbon dioxide and chlorine by thermal decomposition and hydrolysis.HAZARDOUS POLYMERIZATIONWill not occur.11 TOXICOLOGICAL INFORMATIONANIMAL DATANo skin allergy was observed in guinea pigs following repeated exposure. Acute inhalation exposure produced anesthetic effects in mice, dogs, cats and monkeys. Repeated inhalation exposure produced no adverse effects in rats. Inhalation of this material, followed by intravenous injection of epinephrine to simulate stress reactions, resulted in cardiac sensitization in dogs. Following long-term inhalation studies in rats, an increased incidence of benign tumors (at high concentrations) in the testes were the only tumors observed. No birth defects were noted in the offspring of rats exposed to this material by inhalation during pregnancy, even at dosages which produced significant adverse effects in the mother. This material produced no genetic changes in standard tests using bacterial or animal cells and whole animals. Single exposure (acute) studies indicate:EYE IRRITATIONSlightly Irritating to RabbitsSKIN IRRITATIONSlightly Irritating to Rabbits(24-hr exposure)INHALATIONPractically Non-toxic to Rats(4-hr LC50 >500,000 ppm; 30-min LC50 ~750,000 ppm)12 ECOLOGICAL INFORMATIONECOTOXICOLOGICAL INFORMATIONBased on its low n-octanol/water partition coefficient (log pow of 1.06), bioaccumulation of this material is considered unlikely.CHEMICAL FATE INFORMATIONBased on its low n-octanol/water partition coefficient (log pow 1.06), bioaccumulation of this material is considered unlikely. When evaluated in a 28 day activated sludge test, 3% degradation of this material was observed.13 DISPOSAL CONSIDERATIONSWASTE DISPOSALContaminated HFC-134a can be recovered by distillation or removed to a permitted waste disposal facility. Comply with national and local regulations.14 TRANSPORTATION INFORMATIONPROPER SHIPPING NAME: 1,1,1,2-TETRAFLUOROETHANE (Rl34A)HAZARD CLASS: 2.2UN NUMBER: UN 3159PACKING GROUP: NADOT/IMO LABEL: NON-FLAMMABLE GAS15 REGULATORY INFORMATIONRegulations on the Safety Administration of Dangerous Chemicals: Articles 1-4，7-27，15-27，29，31，34-46，50-53，59-70.16 OTHER INFORMATIONISSUE DATE: September, 2002JIANGSU KANGTAI FLUORINE CHEMICALS CO. LTD. believes that the information and recommendations contained herein (including data and statements) are accurate as of the date hereof. No warranty of fitness for any particular purpose, warranty of merchantability, or any other warranty, expressed or implied, is made concerning the information provided herein. The information provided herein relates only to the specific product designated and may not be valid where such product is used in combination with any other materials or in any process. Further, since the conditions and methods of use are beyond the control of KANGTAI, KANGTAI expressly disclaims any and all liability as to any results obtained or arising from any use of the product or reliance on such information.--- END OF MSDS ---。

R134a使用指南2024

引言概述：R134a是一种常用的制冷剂，广泛应用于家用和商用制冷设备。

本文旨在提供R134a的使用指南，包括其特性、优点、适用范围、注意事项以及遵循的安全操作规程。

正文内容：一、R134a的特性1.物理性质：R134a是一种无色、无味、无毒的气体，在常温下具有较低的蒸汽压力和较高的冷凝温度。

2.热力性质：R134a的热力性质良好，具有高比热和较低的热导率，适用于高效制冷。

3.化学稳定性：R134a在常温下化学稳定，不易发生分解反应，能够长时间稳定使用。

二、R134a的优点1.环境友好：R134a是一种零臭氧损耗的制冷剂，对大气臭氧层没有破坏性的影响，符合环保要求。

2.高效节能：R134a在制冷和空调领域具有良好的热力特性，能够实现高效制冷和节能运行。

3.安全可靠：R134a具有低毒性和低燃爆性，操作和使用时相对安全可靠。

三、R134a的适用范围1.家用冷藏空调设备：R134a适用于家用冰箱、冷柜、空调等冷藏设备的制冷循环中。

2.商用制冷设备：R134a可广泛应用于超市冷柜、冷库、冷藏车等商用制冷设备中。

3.汽车空调系统：R134a也被用于汽车空调系统中，能够提供稳定和高效的制冷性能。

四、使用R134a的注意事项1.遵循制造商指南：使用R134a前应仔细阅读制造商提供的指南和说明，确保正确使用和操作。

2.执行规范：遵循相关的制冷行业规范和标准，确保安全操作和系统性能。

3.储存和搬运注意：R134a为压缩气体，应储存在阴凉、通风的地方，并避免对剧烈震动和高温环境。

4.防止泄漏：使用R134a时需要注意密封性能，定期检查并修复任何潜在的泄漏点。

5.专业技术支持：对于R134a制冷系统的维护和修理，建议寻求专业的技术支持和帮助。

五、遵循的安全操作规程1.个人安全意识：操作人员需要具备足够的安全意识，遵守操作规程并佩戴必要的个人防护装备。

2.通风和排气：在操作R134a时，确保良好的通风和排气系统，避免对人员和环境产生负面影响。

系列制冷剂——现代制冷剂R134a

系列制冷剂——现代制冷剂R134a[ 作者:长安家电实习室| 时间:2003-12-07 07:56:49 | 收藏本文] 【大中小】1、性能R134a是现有制冷剂的一种替代品，其分子式为C2H2F4，因此有时也写作HFC-134a.34a除具有作为制冷剂所具备的全部物理化学特性外，而且还满足环保要求，对环境不构成危害影响，分子直径比R12分子直径小，R134a的单位制冷能力比R12要高。

目前，R134a已得到世界大多数国家广泛使用，成为无氟替代的首选替代物。

新型的制冷剂二元混合工质、三元混合工质的研制和开发将逐步替代R 12制冷剂，而R134a制冷剂将成为一种过渡时期的产物。

2、安全实施准则（1）关于R134a 的压缩机的润滑油①R134a与酯类油兼容，与目前R12压缩机所用矿物油或烷基苯油亲合力差。

②酯类油不允许与其它润滑剂混合，酯类油比目前R12压缩机所用的润滑油吸水性更强，所以，在任何情况下均不允许压缩机敞口时间超过15分钟。

压缩机拔堵后，首先应马上插管，并且避免强制空气循环。

③R134a 压缩机最大含水量≤100mg，酯类油含水量≤60ppm。

④酯类油刺激眼和皮肤，应避免接触，并保证工作环境通风。

⑤真空站和灌注台的真空泵以及阀的密封液也应使用粘度和压缩机润滑相当（约为40℃、20cst）的酯油。

以防止真空泵雾倒灌，引起污染，而且该油与系统兼容。

（2）关于毛细管堵塞R134a冰箱的毛细管经常被堵塞的原因有：①来自于系统内部件或生产过程中的硅、石蜡、硫磺、油脂、润滑油或其它高粘性物质。

②来自于零部件的碱性物质（抗氧化剂和焊剂）。

③金属的腐蚀及干燥剂和润滑剂的变质，残余氯化物和过多水分。

④冷冻机油中有残余的矿物油。

由于R134a系统毛细管很容易堵，故设计时在保证流量的前提下，内径尽可能粗。

（3）关于干燥过滤器①与R12所用干燥过滤器相比，分子筛用量增加20﹪，分子筛为XH7或XH9。

②任何重新灌注都必须同时更换过滤器。

氟利昂134A是一种新型制冷剂

氟利昂134A是一种新型制冷剂，属于氢氟烃类（简称HFC）。

其沸点为-26.5℃。

它的热工性能接近R12（CFC12），破坏臭氧层潜能值ODP为0，但温室效应潜能值WGP为1300（不会破坏空气中的臭氧层，是近年来鼓吹的环保冷媒，但会造成温室效应。

），现被用于冰箱、冰柜和汽车空调系统，以代替氟利昂12。

它比R12的优越性在于以下几个方面：1、R134a不含氯原子，对大气臭氧层不起破坏作用；2、R134a具有良好的安全性能（不易燃，不爆炸，无毒，无刺激性无腐性）；3、R134a的传热性能比较接近，所以制冷系统的改型比较容易；4、R134a的传热性能比R12好，因此制冷剂的用量可大大减少。

这里要着重指出，对于不安全卤化烃化合物（HFCs），由于不含亲油性基的氯原子，因此，不能于矿物润滑油亲和，为了确保相容性，在家用空调系统中，可采用聚酯合成润滑油（POE油）或烷基苯润滑油（AB油）。

R-404A制冷剂，别名R404A，商品名称有SUVA HP62、SUVA 404A、Genetron 404A等。

由于R-404A 属于HFC型非共沸环保制冷剂（完全不含破坏臭氧层的CFC、HCFC），得到目前世界绝大多数国家的认可并推荐的主流低温环保制冷剂，广泛用于新冷冻设备上的初装和维修过程中的再添加。

符合美国环保组织EPA、SNAP和UL的标准，符合美国采暖、制冷空调工程师协会（ASHRAE）的A1安全等级类别（这是最高的级别，对人身体无害）。

R-410A制冷剂，别名R410A，商品名称有SUVA 410A、SUVA 9100、Genetron AZ-20、Genetron 410A、Puron410A等。

由于R-410A属于HFC型近共沸环保制冷剂（完全不含破坏臭氧层的CFC、HCFC），得到目前世界绝大多数国家的认可并推荐的主流中高温环保制冷剂，广泛用于新冷冻设备上的初装和维修过程中的再添加。

符合美国环保组织EPA、SNAP和UL的标准，符合美国采暖、制冷空调工程师协会（ASHRAE）的A1安全等级类别（这是最高的级别，对人身体无害）。

R134a泽华(英文版)MSDS

MATERIAL SAFETY DATA SHEETR134a1.PRODUCT AND COMPANY IDENTIFICATIONProduct name:1,1,1,2-TetrafluoroethaneSynonyms:HFC-134a,refrigeration gas(R134a)Supplier:Zhejiang ze China fluorine chemical Co.,LTD.Address:No.116xinqiao street,Quzhou,Zhejiang,China3244000E-mail:yjh@Fax:0086-570-8558366Enterprise emergency phone:0086-570-8257007This MSDS effected since Nov18th,2010National emergency phone:0086-532-388909086-532-3889191POSITION/INGREDIENTSPURITY(√)MIXTURE()Material Name:1,1,1,2-TetrafluoroethaneContent Wt:99.9%CAS No.:811-97-23.HAZARDS IDENTIFICATIONHazards Class:2.2Non Flammable GasInvasive routes:inhalation,ingestion,eye and skinPotential health effects:High concentration of vapor in air will reduce the oxygen and cause anoxic asphyxiation.Eye/skin contact with liquid may cause frostbite or other harms.Under high temperature(like fire or on the surface of hot metal)will decompose and forming toxic materials like hydrochloric,hydrofluoric acid and carbonyl halides.Environment effects:The potential ODP=0,GWP=1200.Flame effects:Under common situation(common tempreture and atmospheric pressure),this product isnon-flammable,but under certain situation it will.4.FIRST AID MEASURESSkin:In case of contact,take off the polluted clothes,flush area with suds water and clean water at least 15minutes,do not use hot water,call a physician.Eyes:In case of contact,flush with plenty of clean water or physiological saline,call a physician. Inhalation:If inhaled,immediately remove to fresh air.Keep respiratory tract fluntely.If have difficulty in breathing,give an oxgen therapy.If not breathing,give artificial respiration or closed cardiac massage at once.Call a physician.Ingestion:Not a probable rout,owever in case of accident ingestion,drink plenty of lukewarm water,make emetic action,call a physician.5FIRE-FIGHTING MEASURESFlammable characteristics:It is not flammable and explosive in the air.In case of phyrogenetic decomposition,it will form toxic materials like hydrochloric,hydrofluoric acid and carbonyl halides.In case of meeting hihg tempreature,the inner pressure of the container strengthen and may cause craze and explosion. Harmful combustion products:Forming toxic materials like hydrochloric,hydrofluoric acid and carbonyl halides.Fire-fighting ways:Cut off the gas origin,use water spray or fog to cool the container,remove the container to clean place if possible.Extinguish agent:Roridous water,foam,carbon dioxide.Extinguish notices and measures:Wear specialized protective suit and self-contained breathing apparatus(SCBA),and to extinguish the fire on the upper wind position.6ACCIDENTAL RELEASE MEASURESRemove the staffs from the release polluted places to upper wind position,and isolote the staffs and the polluted zone,control the passes.The handling personnel had better to wear specialized protective suit and self-contained breathing apparatus(SCBA),find out the release source and cut off it,and remove the released container to ventilate area and keep ventilation.The leaked container should be dealt with e after repairing and checking.Eliminate way:Keep ventilation and accelerating spread.If possible,use the gas into production immediately.7HANDLING AND STORAGEHadling:Keep ventilation and airtight producing procedure.The operators must have professional training and obey the operation rules strictly.While the consistency in the air surpass the standard consistency,the handling personnel have to wear self-contained breathing filtermask(half-mask respirator)and chemical protective goggles.Prevening the gas leak out to the workplace’s air. Gently handling to avoid the damage of the container or its accessories.To equip the relevant emergency equipment.Storage:Keep in cool,ventilated places.Keep far away from fire,hot source.The storage places’tempreature should lower than30℃,avoid direct sunlight.And separated with inflammables, oxidizer,edible chemicals,do not have a mix storage.Storage place should have emergency release handling equipment.Notice the chemical name while checking and accepting,note the checking date,use them orderly.8EXPOSURE CONTROLS/PERSONAL PROTECTIONThe max consistency:China MAC(mg/m3):No data.China PC—TWA(mg/m3):No data.China PC—STEL(mg/m3):No dataFormer Soviet Union MAC(mg/m3):No dataUSA TLV-TWA:No dataUSA TLV-STEL:No dataMonitor way:gas phase chromatography.Engineering control:airtight producing procedure,good ventilation.Respiratory system protection:While the consistency in the air surpass the standard consistency,the handling personnel have to wear self-contained breathingfiltermask(half-mask respirator).Eyes protection:wear chemical protective goggles when necessary.Personnel protection:wear general job protective suit.Hands protection:wear general job protective gloves.Others:avoid high consistency inhalation.Under the monitor whileworking in the container,restricted area and other highconsistency area.9PHYSICAL PROPERTIESAppearance and characteristics:colorless transparency liquid,gas with slight aetheral odor.PH Index:No data.Melting point(℃):No data.Boiling point(℃):-21.6℃Freezing point(℃):-101℃(℃)Liquid density:1206kg/m3(25℃)Saturation vapor density: 5.25kg/m3Saturation vapor pressure(kPa):No data.Critical tempreature(K):374.25Critical pressure(MPa): 4.06Flash point(℃):insignificanceInflame temperature(℃):insignificanceUEL[%(V/V)]:insignificanceLEL[%(V/V)]:insignificanceSolubility:slight solubilize in water,solubilize in ethanol,ether.Main use:refrigerant agent,plastic vesicant,medicine,makeup aerosol,medical inhalator propellant etc.AND REACTIVITYSTABILITYAND10STABILITYStability:stableThe condition to be avoided:high temperatureIncompatibility with other material:alkali or alkaline earth metal-powdered Al,Zn,Be etc. Polymerization:will not occurDecomposition:forming toxic materials like hydrochloric,hydrofluoricacid and carbonyl halides.11TOXICOLOGICAL INFORMATIONVirulentLD50:No data.LC50:No data.Thrill:No data.12ECOLOGICAL INFORMATIONEcotoxity:No data.Biological degradability:No data.Non-biological degradability:No data.13DISPOSALE CONSIDERATIONWaste disposal:mix with the other fuels before burning,be careful to form phosgene during the burning.The halogen hydride discharged from incinerator should be cleaned by acid. Notice:the disposal should comply with local regulation.14TRANSPORTATION INFORMATIONHazard class: 2.2UN No.:3159Package lable:non-flammable gasPackage classification:IIIPackage:steel cylinder,ampoule bottle with common wooden case outside. Notice:while transported in steel cylinders,make sure the cylinders’safety cap are fixed.Cylinders shouldbe lied flat and make the cylinders’mouth at the same directions.The height should not surpass the vehicle’s fence board and fix with the trigonal board to prevent the move of the cylinders.Mixture transportation with edible chemicals is forbidden.During summer the products should be transported in the morning or in the evening and avoid direct sunshine.Should transport on certain route during road transportation,never stop in residential area or densely populated area.Humping is forbidden during railroad transportation.15REGULATORY INFORMATION‘REGULATIONS ON SECURITY ADMINISTRATION OF DANGEROUS CHEMICAL GOODS’(Rule No.344,stated by State Council,China,carry into execution from Mar.15, 2002);‘REGULATIONS ON CHEMICALS’SAFETY USE IN WORKPLACE’(Rule No.423, stated by employment department,China)etc.have made a series of relevant rules including the use,producing,storage,transportation,loading and unloading.According to GB13690-92 Standard of Republic of China,its dangerous classification is2.2non-flammable gas.This MSDS obeys the Standard GB16843-2000.16OTHER INFORMATIONThe above information was supplied by:Zhejiang ze China fluorine chemical Co.,LTD.The above data was checked by:Produce Department of Zhejiang ze China fluorine chemical Co.,LTD..Date:Nov.18th,2011。