化合物英文命名规则
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用“-ous”表示低价化合物，用“-ic” 表示高 价化合物
I. NOMENCLATURE OF INORGANIC COMPOUNDS
CuI cuprous iodide
CuI2 cupric iodide
FeBr2 ferrous bromide
FeBr3 ferric bromide
SnCl2 stannous chloride SnCl4 stannic chloride
HNO3 nitric acid
HNO2 nitrous acid
I. NOMENCLATURE OF INORGANIC COMPOUNDS
THE ELEMENT SYMBOLS NOT FROM ENGLISH
Sodium Natrium
K
potassium kalium
Sn
tin
stannum
I. NOMENCLATURE OF INORGANIC
COMPOUNDS
4. A class of compounds in which such prefixes are seldom used is that in which the metal atom usually exhibits（展现） only one oxidation state.
CtrliOox2idchelorine dioxide
ClO3 chlorine
Ctelt2rOo7xiddie-chlorine heptoxide ClO4 chlorine
I. NOMENCLATURE OF INORGANIC COMPOUNDS
And “-ous”, “-ic” were also used to denote（表示） the lower and higher metallic state.
对于仅含两种元素、但多于两个原子的化合物，加 “mono-”, “di-”, “tri-”等前缀很有必要
(1)mono-, (2)di-, (3)tri-, (4)tetra-, (5)penta-, (6)hex-, (7)hept-, (8)octa-
Cml2oOnodxii-dcehlorine monoxide ClO chlorine
symbol English Latin
symbol English Latin
Cu
copper cuprum
Au
gold aurum
Sb
autimony stibium
Fe
iron ferrum
Pb
lead
Plumbum Ag
Silver arrgentum
Hg
mercury hydrargyrum Na
NaBr sodium bromide BaS barium sulfide
CaO calcium oxide HI hydrogen iodide
I. NOMENCLATURE OF INORGANIC
COMPOUNDS
3. For compounds containing still only two elements but more than two atoms（原子）, the prefixes （前缀）“mono-”, “di-”, “tri”, etc. become necessary.
CaCO3 limestone （石灰石） Hg2Cl2 Calomel (甘汞)
I. NOMENCLATURE OF INORGANIC
COMPOUNDS
2. If there are only two elements in the compounds（化合物）, it is customary（习惯上） to name the more metallic（金属性） element first and the less metallic, or more electronegative（电负 性） element second, with the suffix（后缀） “ide”.
zhangbh@
I. NOMENCLATURE OF INORGANIC COMPOUNDS（无me （俗名）
H2O water 石灰）
CaO quicklime （生
NH3 ammonia （复）ammonium（单） K2CO3 potash（草木灰）
当化合物中的金属元素仅有一种价态，通常 很少加前缀
ZnBr2 zinc bromide hydride
Na2O sodium oxide sulfide
CaH2 calcium Al2S3 aluminum
I. NOMENCLATURE OF INORGANIC
COMPOUNDS
5. Three elements present, such compounds are named by combining the suffix “-ate” with the name of the less electronegative of the two nonmetallic elements. And “-ite”, “-ate” are used to denote the lower and higher oxidation state of the same electronegative element.
若化合物中仅有两种元素，习惯上先命名金属性强的元素，后命名金属 性弱的元素，再加上ide作为后缀
K potassium Na sodium Ca calcium Ba barium S sulfur
H hydrogen iodine
Cl chlorine Br bromine O oxygen I
KCl potassium chloride
SUPPLEMENTARY INFORMATION OF SPECIALTY ENGLISH(专业英语 补充信息）
——Nomenclature of compounds （化合物构词法）
Zhang Baohua College of Environmental & Chemical Engineering
I. NOMENCLATURE OF INORGANIC COMPOUNDS
CuI cuprous iodide
CuI2 cupric iodide
FeBr2 ferrous bromide
FeBr3 ferric bromide
SnCl2 stannous chloride SnCl4 stannic chloride
HNO3 nitric acid
HNO2 nitrous acid
I. NOMENCLATURE OF INORGANIC COMPOUNDS
THE ELEMENT SYMBOLS NOT FROM ENGLISH
Sodium Natrium
K
potassium kalium
Sn
tin
stannum
I. NOMENCLATURE OF INORGANIC
COMPOUNDS
4. A class of compounds in which such prefixes are seldom used is that in which the metal atom usually exhibits（展现） only one oxidation state.
CtrliOox2idchelorine dioxide
ClO3 chlorine
Ctelt2rOo7xiddie-chlorine heptoxide ClO4 chlorine
I. NOMENCLATURE OF INORGANIC COMPOUNDS
And “-ous”, “-ic” were also used to denote（表示） the lower and higher metallic state.
对于仅含两种元素、但多于两个原子的化合物，加 “mono-”, “di-”, “tri-”等前缀很有必要
(1)mono-, (2)di-, (3)tri-, (4)tetra-, (5)penta-, (6)hex-, (7)hept-, (8)octa-
Cml2oOnodxii-dcehlorine monoxide ClO chlorine
symbol English Latin
symbol English Latin
Cu
copper cuprum
Au
gold aurum
Sb
autimony stibium
Fe
iron ferrum
Pb
lead
Plumbum Ag
Silver arrgentum
Hg
mercury hydrargyrum Na
NaBr sodium bromide BaS barium sulfide
CaO calcium oxide HI hydrogen iodide
I. NOMENCLATURE OF INORGANIC
COMPOUNDS
3. For compounds containing still only two elements but more than two atoms（原子）, the prefixes （前缀）“mono-”, “di-”, “tri”, etc. become necessary.
CaCO3 limestone （石灰石） Hg2Cl2 Calomel (甘汞)
I. NOMENCLATURE OF INORGANIC
COMPOUNDS
2. If there are only two elements in the compounds（化合物）, it is customary（习惯上） to name the more metallic（金属性） element first and the less metallic, or more electronegative（电负 性） element second, with the suffix（后缀） “ide”.
zhangbh@
I. NOMENCLATURE OF INORGANIC COMPOUNDS（无me （俗名）
H2O water 石灰）
CaO quicklime （生
NH3 ammonia （复）ammonium（单） K2CO3 potash（草木灰）
当化合物中的金属元素仅有一种价态，通常 很少加前缀
ZnBr2 zinc bromide hydride
Na2O sodium oxide sulfide
CaH2 calcium Al2S3 aluminum
I. NOMENCLATURE OF INORGANIC
COMPOUNDS
5. Three elements present, such compounds are named by combining the suffix “-ate” with the name of the less electronegative of the two nonmetallic elements. And “-ite”, “-ate” are used to denote the lower and higher oxidation state of the same electronegative element.
若化合物中仅有两种元素，习惯上先命名金属性强的元素，后命名金属 性弱的元素，再加上ide作为后缀
K potassium Na sodium Ca calcium Ba barium S sulfur
H hydrogen iodine
Cl chlorine Br bromine O oxygen I
KCl potassium chloride
SUPPLEMENTARY INFORMATION OF SPECIALTY ENGLISH(专业英语 补充信息）
——Nomenclature of compounds （化合物构词法）
Zhang Baohua College of Environmental & Chemical Engineering