anhydride

1 A new type gemini surfactant was synthesized from 1,4 - butanediol , maleic anhydride and 1 - octadecanol.

采用1,4- 丁二醇 、 马来酸酐及十八醇为主要原料,合成出一种双子表面活性剂1, 4- 丁二醇双琥珀酸十八醇双酯磺酸钠.

2 This compound on heating with phosphoric anhydride loses water and yields anthraquinone, It may be prepared in a similar manner by heating phthalyl chloride with benzene in the presence of aluminium chloride.

3 Thilorier was killed by the explosion of a vessel of liquefied carbonic anhydride; Dulong lost an eye and finger, and Sir Humphrey Davy was wounded by an explosion of chloride of nitrogen.

4 The proper content of O2. cyclohexane and CO2 could increase the conversion rate of cyclohexane and the selectivity of butanedioic anhydride.

适当的氧含量、环己烷浓度和气相中CO_2浓度均能提高催化剂对环己烷的转化率和琥珀酸酐的选择性。

5 The lignone group as it exists in the lignocellulose has no free OH groups, and probably no free aldehydic groups such as would react with the anhydride.

6 A copolymer has been synthesized from acrylic acid and maleic anhydride.

以丙烯酸和马来酸酐为原料合成出了一种共聚物.

7 It is prepared by heating gallic acid with benzoic and sulphuric acids, or with phthalic anhydride and zinc chloride, and is a brown dye known as “anthragallol” or “anthracene-brown.”

8 Phthalic anhydride is irritant to tissue and should be handled with care.

邻苯二甲酸酐对细胞组织有刺激性，使用时要小心。

9 Cellulose reacts directly with acetic anhydride to form low esters; in the presence of sulphuric acid the reaction proceeds to higher limits; the triacetate is soluble in chloroform.

10 Hardness and temperature, current density, chromium content of sulfuric acid anhydride and are closely related.

铬层软度与温度、电流密度、铬酐及硫酸的含量都有紧密亲密的干系。

11 I pretend to understand all about sulphuric anhydride, and carbon dioxide, and 127 degrees Fahrenheit, but do not really know if there are things which should be remembered or forgotten.

12 The reason that metallic oxides dissolve in borax is that borax contains an excess of acid anhydride, as can be more easily seen if its formula is written 2NaBO2 + B2O3.

13 In the old chemistry the name acid was applied to the oxides of the negative or nonmetallic elements, now sometimes called anhydrides.

14 Coumarin, the anhydride of cinnamic acid,; is an example of an acid substance which is classed as an essential oil, even though it is a solid at ordinary temperatures.

15 An optimizing control configuration for oxidizing reaction in the production of phthalic anhydride is proposed in this paper.

本文给出一种苯酐生产中氧化反应收率的最优控制方案。

16 Most other metal oxides are insoluble and do not form hydroxides in water; however, they are still base anhydrides because they will react with acids.

17 The organic compounds are mainly benzoic acid anhydride , benzophenone, and so on.

生成的有机化合物成分比较复杂,主要成分有苯甲酸酐、苯甲酮等.

18 Succinic acid dehydration is one of industrial methods to produce succinic anhydride.

丁二酸脱水法是工业生产丁二酸酐的方法之一。

19 A high performance resin matrix for resin transfer moulding (RTM) was prepared by applying low viscosity anhydride to cure epoxy resin.

通过选用低黏度液体酸酐为环氧树脂的固化剂，制得了一种用于rtm的高性能树脂体系。

20 The composition of the gaseous residue present does not affect phosphorescence; thus, the earth yttria phosphoresces well in the residual vacua of atmospherical air, of oxygen, nitrogen, carbonic anhydride, hydrogen, iodine, sulphur and mercury.

1 酐

anhydrid anhydro

2 脱水物

anhydrous anhyd.