acooking,and she cooks for us everyday.And my mother sings well. 烹调和她为我们烹调每天。并且我的母亲很好唱歌。[translate] aWe shall use the ARSST to study the reaction between acetic anhydride and water to form acetic acid. 我们将使用ARSST学习反应在乙酸酐和水之间形成乙酸。[translate]...
Acetic anhydride.-Water vapour is removed from a vapour mixture containing acetic anhydride and the anhydride is simultaneously condensed by adding an indifferent solvent of low boiling point such as benzene, toluene, chloroform, trichlorethylene, or ethylene chloride or a mixture of them, to carry...
allrightsuddenlyisnothappy 正在翻译,请等待...[translate] aAcetic anhydride is placed in the ARSST to form a 6.7 molar solution of acetic anhydride and a 20.1 M solution of water. 乙酸酐在ARSST安置形成乙酸酐的一种6.7槽牙解答和水的一种20.1 M解答。[translate]...
The rate of hydrolysis of acetic anhydride at 25 掳C. in water (I), in solutions of methyl ethyl ketone (MEK) in water (II), and in solutions of water in MEK (III) have been studied. In I the observation of previous investigators that the velocity constant varies linearly with the ...
Water entering a storage tank, from which a relatively large1 amount of acetic anhydride escaped, caused pressure to build. reports.wacker.com 一个乙酸酐储罐由于 进水导致罐内压力升高,造 成 乙酸 酐多 量1 泄漏。 reports.wacker.com The Board also calls upon all States to assist the Governme...
Cyclodehydration was accomplished by adding acetic anhydride and fused sodium acetate (22.1 ml and 0.02 g, respectively, per mol of water condensed to the reaction solution and heating at 90 [degrees] C for 0.5h). Synthesis and properties of new polymaleimides containing allyl groups Specialists...
such as are produced by the thermal dehydration of acetic acid, are very well known, but, while at first sight it would seem natural to apply these methods to the separation of mixtures of acetic anhydride and water produced by oxidising acetaldehyde, it is found in practice that the proble...
The determination of citric acid with pyridine and acetic anhydride has been investigated at reaction temperatures from 17 to 60° C. The optimum proportions of pyridine, acetic anhydride, water, and acetic acid for maximum color intensity and stability are given for each temperature. The procedure...
anhydride 英语例句库 1.By the improved method, proglumide was synthesized in acetic anhydride with toluene as the dehydrating agent. 本文报道合成抗溃疡药丙谷胺的改进工艺。 2.The test for treatment of waste water from acetic acid and acetic anhydride production by using anaerobic digestion-aerophile...
提纯方法 Usual impurities are traces of acetaldehyde and other oxidisable substances and water.(Glacial acetic acid is very hygroscopic. The presence of 0.1% water lowers its m by 0.2℃.) Purify it by adding some acetic anhydride to react with water present, heat it for 1hour to just ...