化学专业英语

化学专业英语
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 oxide

N2O4: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。2);非最低价的二元化合物还要加前缀,如O22-: peroxide O2- : superoxide

举例:NaF: sodium fluoride AlCl3: aluminium chloride

Mg2N3: magnesium nitride Ag2S:silver sulfide

CaC2: calcium carbide Fe(OH)2:iron(II) hydroxide

有些物质常用俗称,如NO nitric oxide N2O nitrous oxide

2.2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。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

对于其它族的非金属氢化物,H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: methane SiH4: silane B2H6: diborane

2.3无氧酸

命名规则:hydro-词根-ic acid

举例:HCl: hydrochloric acid

H2S : hydrosulfuric acid

2.4含氧酸与含氧酸根阴离子

化学专业英语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ortho-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 H2SO3sulfurous acid

HNO3nitric acid HNO2nitrous acid

HPO3 metaphosphoric acid S2O32- thiosulfate ion

2.5盐

正盐:根据化学式从左往右分别读出阳离子和阴离子的名称。

如FeSO4 iron(II) sulfate KMnO4 potassium permanganate

酸式盐:同正盐的读法,酸根中的H读做hydrogen,氢原子的个数用前缀表示。

如NaHCO3: sodium hydrogen carbonate 或sodium bicarbonate

NaH2PO4:sodium dihydrogenphosphate

复盐:同正盐的读法,并且阳离子按英文名称的第一个字母顺序读。

如KNaCO3: potassium sodium carbonate

NaNH4HPO4: ammonium sodium hydrogen phosphate

水合盐:结晶水读做water或hydrate

如AlCl3.6H2O: aluminum chloride 6-water或aluminum chloride hexahydrate

AlK(SO4) 212H2O aluminium potassium sulphate 12-water

三物理性质(physical properties)

colour: colorless, red-brown, violet-black, purple-black, pale yellow, dark brown

smell: odorless, pungent, penetrating, offensive, choking, bitter, sour, sweet

state: solid, liquid, gas, gaseous, oily, crystalline, uncrystalline, molten, fused

solubility: soluble, insoluble, slightly soluble, very soluble ,

density: heavy, light , less dense, denser, greatly denser, slightly denser,

about the same dense

hardness: hard, soft , ductile, malleable

toxicity:toxic, poisonous

melting point, boiling point: high, low

conductiv ity: electrical conductivity ; thermal conductivity ; conductor ; insulator;

semiconductor

四化学性质(chemical properties)

stability: stable , unstable, reactive, unreactive

redox property: oxidizing ability, reducing ability, oxidizing agent(oxidant), reducing agent (reductant), oxidation, reduction, oxidation state, valence, strong, weak

acid-base property: acidic, basic, strong, weak, monohydroxy base, monoprotic acid,

五化学方程式(Chemical Equations)

1 反应名称:

Combination;decomposition;single displacement;double displacement;redox reaction;nonredox reaction;disproportionation;neutralization;exothermic reaction; endothermic reaction; reversible reaction; forward reaction; reverse reaction; spontaneous reaction; nonspontaneous reaction

2 反应条件:

heat; burn; ignite/ignition ; electrolyze/electrolysis; under/at ambient/room temperature; under standard pressure; with/in the presence of a catalyst

3 读法:

3.1 Nitrogen reacts with hydrogen to form ammonia at high temperature and pressure with the presence of a catalyst.

1 mol nitrogen reacts with 3 mol hydrogen to form

2 mol ammonia at high temperature and pressure with the presence of a catalyst.

3.2 Nitrogen combines with hydrogen to form ammonia at high temperature and pressure with the presence of a catalyst.

Ammonia decomposes to nitrogen and hydrogen at high temperature and pressure with the presence of a catalyst.

3.3 Reaction between nitrogen and hydrogen at high temperature and pressure with the presence of a catalyst gives ammonia.

At high temperature and pressure, reaction of nitrogen with hydrogen in the presence of a catalyst takes place.

六化学计算(Chemical Calculation)

1 化学术语:

atomic mass/weight ; molecular weight; amount (of substance); mole; number of moles; molar

mass; molar volume; concentration; molarity ; excess agent; limiting agent;reactant; product; yield;

2 数学术语:

+-×÷

运算名称addition subtraction mulplication division

动词读法add substract(ed)·from multiply(ied)·by divide(d)·by

介词读法plus minus times over

运算结果sum difference product quotient

0.001 o/zero point o o one

2/3 two thirds

=equals/is equal to

≈is approximately equal to

<less than

>greater than

x2x squared ; x3x cubed ; x-10x to the minus tenth power

100o c one hundred degrees centigrade

5% five percent (by mass, volume)

()round brackets/parentheses

[ ] square/angular brackets

{} braces

linear planar trigonal square tetrahedral

七化学实验(Chemical Experiments )

1 实验用品( equipments / apparatus )

烧瓶round-bottom/Florence flask 锥形瓶(conical) Erlenmeyer flask

三角漏斗funnel 长颈漏斗thistle tube 试管架test-tube rack

集气瓶bottle ; glass jar 滴定管burette 烧杯beaker

玻棒glass rod 洗瓶wash bottle 干燥管drying tube

试管刷test tube brush 温度计thermometer 火柴match

酒精灯burner 石棉网wire gauze 铁架台iron stand

指示剂indicator 酚酞phenolphthalein U型管U tube

石蕊litmus 甲基橙methyl orange 淀粉starch

橡皮塞rubber stopper 橡皮管rubber tube 滴管eye dropper

角匙spoon 蒸发皿evaporation dish 滤纸filter paper

研,棒mortar and pestle 量筒graduated cylinder 天平balance

2 实验报告:

aims ; principles/introduction ; procedures ; observations; conclusion/deduction

brisk effervescence, precipitate, milky, aqueous solution

3实验类型:

confirmative test ; inquiry test; qualitative analysis; quantitative analysis ; measurement / determination on

4实验操作:

collect gas (over water; upward displacement of air; downward delivery)

bubble gas through ; dry gas ; suck bac【下载本文档,可以自由复制

应用化学专业英语词汇

Toxic chemicals:有毒化学品 Chemical pollution:化学污染 Physical property :物性 Natural changes: 自然变化 Scientific fields:科学领域 Isolate:分离 Determine:测定 Synthesize:合成 Fundamental principles:基本原理 Investigation:研究 Utilize:利用 化学式书写的基本规则 如何写化学式 命名化合物 二元化合物:氧化物,盐,酸 (1)阴离子元素加后缀–ide (2)多价态元素加前缀:mono-, di-, tri-, tetra-, penta-, hexa- (3)低价氧化态后缀–ous,高价氧化态后缀–ic 氧化物 盐 酸:基础元素(前缀hydro-, 后缀-ic)+ acid 氢氧化物(碱): 金属元素(价态)+ hydroxide 含氧酸及其盐 (1)基本元素仅有一种氧化态 酸:基础元素加后缀-ic + acid 盐:阳离子元素+基础元素加后缀-ate (2)基本元素有二种氧化态 酸:基础元素加后缀(-ous低价态,-ic高价态)+ acid 盐:阳离子元素+ 基础元素加后缀(-ite低价态, -ate高价态)(3)基本元素有多种氧化态 酸:最低氧化态基础元素(前缀hypo-, 后缀-ous)+ acid 较低氧化态基础元素加后缀-ous+ acid 较高氧化态基础元素加后缀-ic + acid 最高氧化态基础元素(前缀per-, 后缀-ic)+ acid 盐:最低氧化态阳离子元素+ 基础元素(前缀hypo-, 后缀-ite)较低氧化态阳离子元素+ 基础元素加后缀-ite 较高氧化态阳离子元素+ 基础元素加后缀-ate 最高氧化态阳离子元素+ 基础元素(前缀per-, 后缀-ate) 不同水分子含量的酸 较低水含量前缀meta- 较高水含量前缀ortho-

化学专业英语试卷B答案

, 每小题2分,共

20分) 1、 NaCN Sodium cyanide 2、 Ba(OH)2 Barium hydroxide 3、 KMnO 4 Potassium permanganate 4、 H 2SO 4 Sulfuric acid 5、 ZnSO 4 zinc sulfate or zinc sulphate 6、 FeS Iron (II) sulfide or Ferrous sulfide 7、 H 3PO 4 phosphoric acid 8、 H 2SO 3 Sulfurous acid 9、 HClO 4 Perchloric acid 10、FeCl 3 iron (III) chloride or ferric chloride 二、给下列有机化合物的英语名称(共5小题, 每小题4分,共20分) 1. 甲乙醚 ethyl methyl ether 2. 对甲基苯酚 4-methyl phenol 3. 苯乙烯 styrene 4. CH 3CH =C(CH 2CH 3) CH 2 OH 2-ethyl-2-buten-1-ol 5. (CH 3)3CCH 2CH 2OH 4,4-dimethyl-1-butanol or 4,4-dimethyl butanol 三、英译汉(共10小题, 每小题4分,共40分) 1、 Carbon-sodium and carbon-potassium bonds are largely ionic in character; carbon-lead, carbon-tin, carbon-thallium and carbon-mercury bonds are essentially covalent. 碳-钠键和碳-钾键有较大的离子性,碳-铅键,碳-锡键,碳-铊键和碳-汞键基本上属于共价键。 2、 The reactivity of organometallic compounds increases with the percent ionic character of the carbon-metal bond. 金属有机化合物的反应活性随着碳金属键中离子性所占的百分数的增大而增强。 3、 Organometallic compounds of lithium and magnesium are of great importance in organic synthesis. 锂和镁的金属有机化合物在有机合成上有重大的意义。

化学专业英语(修订版)翻译

01 THE ELEMENTS AND THE PERIODIC TABLE 01 元素和元素周期表 The number of protons in the nucleus of an atom is referred to as the atomic number, or proton number, Z. The number of electrons in an electrically neutral atom is also equal to the atomic number, Z. The total mass of an atom is determined very nearly by the total number of protons and neutrons in its nucleus. This total is called the mass number, A. The number of neutrons in an atom, the neutron number, is given by the quantity A-Z. 质子的数量在一个原子的核被称为原子序数,或质子数、周淑金、电子的数量在一个电中性原子也等于原子序数松山机场的总质量的原子做出很近的总数的质子和中子在它的核心。这个总数被称为大量胡逸舟、中子的数量在一个原子,中子数,给出了a - z的数量。 The term element refers to, a pure substance with atoms all of a single kind. T o the chemist the "kind" of atom is specified by its atomic number, since this is the property that determines its chemical behavior. At present all the atoms from Z = 1 to Z = 107 are known; there are 107 chemical elements. Each chemical element has been given a name and a distinctive symbol. For most elements the symbol is simply the abbreviated form of the English name consisting of one or two letters, for example: 这个术语是指元素,一个纯物质与原子组成一个单一的善良。在药房“客气”原子的原子数来确定它,因为它的性质是决定其化学行为。目前所有原子和Z = 1 a到Z = 107是知道的;有107种化学元素。每一种化学元素起了一个名字和独特的象征。对于大多数元素都仅仅是一个象征的英文名称缩写形式,一个或两个字母组成,例如: oxygen==O nitrogen == N neon==Ne magnesium == Mg

应用化学专业英语Unit5-万有志

The Periodic Table As our picture of the atom becomes more detailed, we find ourselves in a dilemma.当我们对原子了解的越来越详细时,我们发现我们其中处在两难之中己。With more than 100 elements to deal with, how can we keep all this information straight?由于超过100种元素要处理,我们怎样能理顺所有的信息?One way is by using the periodic table of the elements.一个方法是使用元素周期表。The periodic table neatly tabulates information about atoms. 周期表整齐地列出了原子信息的表格。It records how many protons and electrons the atoms of a particular element contain. 它记录了一个具体的元素的原子包含多少质子和电子。It permits us to calculate the number of neutrons in the most common isotope for most elements. 它允许我们为大多数元素计算最常见的同位素中的中子的数量。It even stores information about how electrons are arranged in the atoms of each element. 它甚至储存了每个元素的原子周围是如何安排电子的信息。The most extraordinary thing about the periodic table is that it was largely developed before anyone knew there were protons or neutrons or electrons in atoms. 关于周期表的最杰出的事情是在任何人知道在原子周围有质子、中子或者电子之前被提出来。 In 1869, Dmitri Ivanovich Mendeleev, a Russian chemist, published his periodic table of the elements. 在1869年,Dmitri Ivanovich Mendeleev,一位俄罗斯化学家,出版了他的元素周期表。Mendeleev prepared his table by taking into account both the atomic weights and the periodicity of certain properties of the elements. Mendeleev综合考虑元素的原子量和性质的相似性制成了他的元素周期表。The elements were arranged primarily in order of increasing atomic weight. 元素主要按照原子量增加的顺序排列。In a few cases, Mendeleev placed a slightly heavier element with similar chemical properties in the same row. 在一些情况里,Mendeleev把稍微重一点且性质相似的(元素)放在一列中。For example, he placed tellurium (atomic weight = 128) ahead of iodine (atomic weight = 127) because tellurium resembled sulfur and selenium in its properties, whereas iodine was similar to chlorine and bromine. 例如,他把碲(原子量= 128)排在碘(原子量= 127)前面,因为碲在它的特性方面类似硫和硒,而碘类似于氯和溴。 Mendeleev left a number of gaps in his table. Mendeleev在他的元素周期表中留下了许多空格。Instead of looking upon those blank spaces as defects, he boldly predicted the existence of elements as yet undiscovered. 他没有认为这些空格的出现是周期表的缺陷,而是大胆的预言还有未被发现的元素的存在。Furthermore, he even predicted the properties of some of these missing elements. 而且,他甚至预言一些这些未发现的元素的特性。In succeeding years, many of the gaps were filled in by the discovery of new elements. 在以后的许多年中,许多空格被发现的新元素填入。The properties were often quite close to those Mendeleev had predicted. 性质经常十分接近于Mendeleev已经预言的那些性质。The predictive value of this great innovation led to the wide acceptance of Mendeleev's table. 这个伟大革新的预言价值是Mendeleev的元素周期表被广泛接受。 It is now known that properties of an element depend mainly on the number of electrons in the outermost energy level of the atoms of the element. 现在知道一种元素的性质主要取决于元素原子最外层能级的电子数目。Sodium atoms have one electron in their outermost energy level (the third). 钠原子在它们的最外层能级(第3层)里有一个电子. Lithium atoms have a single electron in their outermost level (the second). 锂原子在他们的最外层能级(第2)里有一个单电子. The chemical properties of sodium and lithium are similar. 钠和锂的化学性质是相似的。The atoms of helium and neon have filled outer electron energy levels, and both elements are inert. 氦和氖的原子充满电子能级,并且两种元素都是无活动的。That is, they do not undergo chemical reactions readily. 也就是说,他们不容易经历化学反应。Apparently, not only are similar chemical properties shared by elements whose atoms have similar electron configurations (arrangements) but also certain configurations appear to be more stable (less reactive) than others. 显然,不仅是具有相似的电子构造(安排)的原子的元素具有相似的化学性质,而且某些构造看起来比其它(构造)是更稳定(更少活性)的。

化学专业英语-化学专业英语课-期末考试试卷含答案

化学专业英语试卷 学号:姓名:成绩: 一:把下列单词或词组译成英文(本题共30 分,每小题 1 分) 1. Ni(ClO4)2 nickel perchlorate 3. FeCl2 iron(2)chloride 5. Al(NO3)3 aluminum nitrate 7. MnO2 manganese dioxide 9. N2O3 dinatrogen trioxide 11. NaClO sodium hypochloride 13. P2O5 diphosphorous pentaoxide 15. KMnO4 patassium permangate 17. 盐酸hydrochloric acid 19. KCN patassium cyanide 21. 5-甲基-4-丙基壬烷5-methyl-4-propylnonaane 23. 四氯化碳carbon tetrachloride 25. 中和neutralize 27. 比热容specific heat capacity 29. 酸酐anhytride 2. CuSO4 copper sulfate 4. CoCO3 cobalt carbate 6. Ca(C2H3O2)2 calcium acetate 8. H2SO4 10. 六氰合铁(Ⅱ)酸钾 12. Ag2SO3 sliver sulfite 14. 草酸铅lead cyanate 16. Zn(OH)2 zinc hydroxide 18. 磷酸根phosphate 20. 2,3-二甲基戊烷 2,3-dimethylpentane 22. 2,3,7-三甲基-5-乙基辛烷2,3,7-trimethyl-5-ethyloctane 24. 石蕊试纸litmus paper 26. 滴定titration 28. 非电解质electrolyte 30. 配位化合物complex compound 三. 把下列短文译成汉语(本题共40 分,每小题10 分) 1. Without chemistry our lives would be unrecognisable, for chemistry is at work all around us. Think what life would be like without chemistry - there would be no plastics, no electricity and no protective paints for our homes. There would be no synthetic fibres to clothe us and no fertilisers to help us produce enough food. We wouldn’t be able to travel because there would be no metal, rubber or fuel for cars, ships and aeroplane. Our lives would be changed considerably without telephones, radio, television or computers, all of which depend on chemistry for the manufacture of their parts. Life expectancy would be much lower, too, as there would be no drugs to fight disease. 没有化学反应我们的生活将会大变样,化学就在我们周围。没有化学生活会是什么样子——没有塑料,,家里没有电,也没有防护漆。不会给我们合成纤维,没有化肥帮助我们生产足够的食物。我们不能旅行,因为不会有金属、橡胶或燃料汽车、船只和飞机。我们的生活将会大大改变了没有电话、收音机、电视或电脑,所有这些依赖化学生产的部分。没有药物来抵抗疾病,预期寿命将低得多。 2.The first and second laws of thermodynamics and the meaning of entropy will be discussed. and expanded upon in this lesson. It will be shown that energy transformations on a macroscopic scale — that is, between large aggregates of atoms and/or molecules — can be understood in terms of a set of logical principles. Thus thermodynamics provides a model of the behavior of matter in bulk. The power of

化学化工专业英语(课本内容)

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