无机化学物质的命名.ppt
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1、无机化合物的命名,Nomenclature of Inorganic Chemicals,element,compound,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 or elementary substance”。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。,S-block Element(S区元素),IAHydrogen(H)Lithium(Li)Sodium(Na)Potassium(K)Rubidium(Ru)Cesium(Ce)Francium
2、(Fr),IIABeryllium(Be)Magnesium(Mg)Calcium(Ca)Strontium(Sr)Barium(Ba)Radium(Ra),P26,III A boron(B)Aluminium(Al)Gallium(Ga)Indium(In)Thallium(Tl),IV A Carbon(C)Silicon(Si)Germanium(Ge)Tin(Sn)Lead(Pb)plumbi,V A Nitrogen(N)Phosphorus(P)Arsenic(As)antimony(Sb)Bismuth(Bi),VIA oxygen(O)sulfur(S)Selenium(Se
3、)Tellurium(Te)Polonium(Po),VIIA fluorine(F)Chlorine(Cl)Bromine(Br)Iodine(I)Astatine(At),0 Helium(He)Neon(Ne)argon(Ar)Krypton(Kr)Xenon(Xe)Radon(Ra),P-block Element(P区元素),Common Transition Elememt,Fe:iron;determine Mn:manganese Cu:copper;cuprum Zn:zinc;spelter Hg:mercury;quicksilver Ag:silver;argentin
4、e Au:gold;aurum,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:(1)mono-,(2)di-,(3)tri-,(4)tetra-,(5)penta-,(6)hexa-,(7)hepta-,(8)octa-,(9)nona-,(10)deca-,但是在不会引起歧义时,这些前缀都尽 可能被省去。,monovalent:单价的 carbon dioxane:CO2tribromethane:CHBr3;tetrachloromethane:CCl4 CO(Carbon monoxide)NO(Nitrogen oxide
5、)NO2(Nitrogen dioxide)N2O3(Nitrogen trioxide)N2O5(Nitrogen pentoxide)N2O(nitrous oxide)FeO(Ferrous oxide),Fe2O3(Ferric oxide);MnO(Manganous oxide)Mn2O3(Manganic oxide),H2MnO4(Manganic acid)MnO2(Manganese dioxide),VB:valence bond theoryMO:molecular orbital theory,1.化合物正电荷部分的读法,1.1 Single valence ions
6、 Cations name=Element for example:Na+Sodium Al3+Aluminum K+Potassium Ca2+Calcium 如:CO:carbon monoxide Al2O3:aluminium oxide N2O4:Dinitrogen tetroxide(tetra-,mono-后缀中的a,o在后-o之前省去),ion:离子anion:阴离子cation:阳离子,1.2 Multivalence ions,Cations name=Element(N)For example:Fe2+Iron(II)or Ferrous Fe3+Iron(III)or
7、 Ferric Cr2+Chromium(II)Cr3+Chromium(III)Mn4+Manganese(IV)Mn2+Manganese(II),2.化合物负电荷部分的读法,2.1 Monatomic anions Anions name=Elements root-ide For example:Cl-Chloride O2-Oxide Br-Bromide OH-Hydroxide I-Iodide CN-Cyanide S2-Sulfide H-Hydride,2.2 Polyatomic oxyanions,2.2.1 Acid radicals for normal salt(
8、正酸根-ate)Anions name=Central Elements root-ate For example:ClO3-Chlorate IO3-Iodate PO43-Phosphate NO3-Nitrate SO42-Sulfate CO32-Carbonate,2.2.2 Acid radicals for hypo-salts(次酸根-ite),Anions name=Hypo-Central elements root-ite For example:ClO-Hypochlorite IO-Hypoiodite PO23-Hypophosphite,2.2.3 Acid ra
9、dicals for persalts(高酸根Per-ate),Anions name=Per-Central Elements root-ate For example:ClO4-Perchlorate IO4-Periodate MnO4-Permanganate,2.2.4 含氧酸与含氧酸根阴离子,采用前后缀的不同组合显示不同价态的含氧酸和含氧酸根阴离子,价态相同的含氧酸及含氧酸根阴离子具有相同的前缀,不同的后缀。高某酸 per-ic 正酸 ic 亚酸-ous 次酸 hypo-ous 高某酸根 per-ate 正酸根 ate 亚酸根-ite 次酸根hypo-ite 其它的前缀还有 ort
10、ho-正 meta-偏 thio-硫代举例:HClO4 perchloric acid ClO4-perchlorate ion HClO3 chloric acid ClO3-chlorate ion HClO2 chlorous acid ClO2-chlorite ion HClO hypochlorous acid ClO-hypochlorite ion H2SO4 sulfuric acid H2SO3 sulfurous acid HNO3 nitric acid HNO2 nitrous acid HPO3 metaphosphoric acid S2O32-thiosulfa
11、te ion,3.Naming compounds,3.1 Metal oxide Metal oxide=Cation+oxide For example:FeO Iron(II)oxide(Ferrous oxide)Fe2O3 Iron(III)oxide(Ferric oxide)Fe3O4 Ferroferric oxide Pb3O4 Trilead tetroxide Na2O2 Sodium peroxide,Nonmetal oxide=n-Nonmetal element+n-oxide For example:CO Carbon monoxide CO2 Carbon d
12、ioxide SO3 Sulfur trioxide N2O3 Dinitrogen trioxide P2O5 Diphosphorus pentoxide N2O4 Dinitrogen tetroxide(tetra-,mono-后缀中的a,o在后一o之前省去)有些物质常用俗称,如NO:nitric oxide N2O:nitrous oxide,3.2 Nonmetal oxide,4.非金属氢化物,除了水和氨气使用俗称water,ammonia以外,其它的非金属氢化物都用系统名称,命名规则根据化学式的写法不同而有所不同。4.1 对于卤族和氧族氢化物,H在化学式中写在前面,因此将其看成
13、与另一元素的二元化合物。举例:HF hydrogen fluoride HCl hydrogen chloride HBr hydrogen bromide HI hydrogen iodide H2S hydrogen sulfide H2Se hydrogen selenide H2Te hydrogen telluride,4.2 对于其它族的非金属氢化物,在化学式中写在后面,可加后缀-ane,氮族还可加-ine。举例:PH3:phosphine或phosphane AsH3:arsine或arsane SbH3:stibine或stibane BiH3:bismuthane CH4:m
14、ethane SiH4:silane B2H6:diborane NH3:ammonia,5.无氧酸,命名规则:hydro-词根-icacid 举例:HCl:hydrochloric acid H2S:hydrosulfuric acid HF:hydrofluoric acid HBr:hydrobromic aicd,总结:,H2SO4(+6)Sulfuric acid(正),H2SO3(+4)sulfurous acid;(亚),H2SO5 Peroxy sulfuric,(过),H2SO7(+6)Pyro sulfuric,acid)(焦),H2S2O3(Thiosulfuric ac
15、id)e.g.Na2S2O3(硫代),-H2O,-O-O-,-O,S O,HPO3(偏)(Meta phosphoric,),H3PO4(正)(Phosphoric,),H3PO3(亚)(Phosphorous,),H3PO2(次)(Hypo-phosphorous,),H4P2O7(焦)(Pyro phosphoric,),分子间-H2O,分子内-H2O,-O,-O,+5,+3,+1,H3BO3(Ortho boric,)(原);,HClO(Hypochlorous acid)(次),HClO3(Chloric acid)(正),HClO4(Perchloric acid)(高),HClO2
16、(Chlorous acid)(亚),-O,-O,-O,+5,+7,+3,+1,6.Bases,Base=Metal cation+hydroxide For example:Al(OH)3 Aluminum hydroxide NaOH Sodium hydroxide Ca(OH)2 Calcium hydroxide Ba(OH)2 Barium hydroxide Co(OH)2 Cobalt(II)hydroxide,7.盐(Salts),7.1正盐(Normal salt):根据化学式从左往右分别读出阳离子和阴离子的名称。Normal salt=Cation+anion For e
17、xample:HgSO4 Mercury(II)sulfate Hg2SO4 Mercury(I)sulfate KNO3 Potassium nitrate Na2CO3 Sodium carbonate NaClO Sodium hypochlorite FeSO4 iron(II)sulfate KMnO4 potassium permanganate,7.2 酸式盐:(Acidic salts)同正盐的读法,酸根中的读做hydrogen,氢原子的个数用前缀表示。,Acidic salt=Cation+hydrogen+anion For example:NaHSO4 Sodium hy
18、drogen sulfate Na2HPO4 Disodium hydrogen phosphate NaH2PO4 Sodium dihydrogen phosphate Ca(HSO4)2 Calcium bisulfate NaHCO3 Sodium hydrogencarbonate 或 Sodium bicarbonate,7.3 Basic salts,Basic salt=Cation+hydroxy-anion For example:Cu2(OH)2CO3:Dicopper(II)dihydroxycarbonate Ca(OH)Cl:Calcium hydroxychlor
19、ide Mg(OH)PO4:Magnesium hydroxyphosphate,7.4 复盐(Mixed salts):同正盐的读法。,Mixed salt=Cation+cation+anionFor example:NaKSO3:Sodium potassium sulfite CaNH4PO4:Calcium ammonium phosphate AgLiCO3 Silver lithium carbonate NaNH4SO4 Sodium ammonium sulfate KNaCO3:potassuim sodium carbonate NaNH4HPO4:sodium ammo
20、nium hydrogenphosphate,7.5 水合盐:结晶水读做water或hydrate,如 AlCl36H2O:aluminum chloride 6-water 或 aluminum chloride hexahydrate AlK(SO4)212H2O:aluminium potassium sulfate 12-water,8.Acids8.1 Per-,hydro-,normal acid(its salt-ate,-ide),Acid=Central elements root-ic+acid For example:H2CO3 Carbonic acid H2SO4 S
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