R ” 是取化基,如乙氧基 、 甲氧基及它们的环氧和烷氧同系物或卤基.R " is a replaceable function , e . g . acetoxy, methoxy, their acyloxy and alkoxy homologs or halo.蒸馏得质量分数高于98%的邻乙氧基苯甲酸,收率为92%.Distillation gave o ethoxybenzoic acid with 98 % of the p...

从苯乙腈制取苯基硝基甲烷就用这个方法.This is a generally known method for obtaining phenylnitromethane from benzyl cyanide.设计了一套回收制药废液中乙腈的新工艺.A novel process of acetonitrile recovery from pharmaceutical effluent was designed.有机氰化物, 如乙腈 、 ...

“乙醇胺”的英语可以翻译为：[化] aminoethyl alcohol，cholamine，ethanolamine，neovaricaine ...

以二异丙胺 ( DIPA ) 、硫酸二乙酯 ( Et2SO4 ) 为原料合成N, N二异丙基乙基胺 ( DIPEA ).N, N - Diisopropylethylamine ( DIPEA ) was prepared from diisopropylamine ( DIPA ) and diethyl sulfate ( Et _ 2 SO _ 4 ).论述了高效液相色谱法测定马来酸二乙酯含量的方法.RP - HPLC absol...

“乙醇盐”的英语可以翻译为：[化] ethoxide，ethylate，ethylation ...

“乙碘油”的英语可以翻译为：[化] ethiodized oil，Lipiodol ...

“二乙苯”的英语可以翻译为：[有化] diethylbenzene ...

为了凝结氯乙烷气体,必须使用大量的冷却水.Great quantities of cooling water must be available for condensation of the ethylchloride.简述了二氯乙烷的理化性质 、 作业标准和法规.The article describes the physico - chemical properties, operative standers and laws o...

“氯乙胺”的英语可以翻译为：[医] chlor-ethamin ...

“羟乙胺”的拼音为：qiǎng yǐ àn...

了解三氯 乙醛 的毒性和致突变作用.Acute toxicity test , mutation test and single - cell gel electrophoresis ( SCGE ) were used.三氯乙醛是无色挥发性的液体,带有刺激性很强的气味,在97.7℃沸腾.Chloral is a colorless, volatile liquid with a very penetrating odor and bo...

“乙酰胺”的英语可以翻译为：[化] acetamide，acetylamine，acetic acid amide，ethanamide ...

报道了在低温条件下, 以邻二酮和α-环烯酮为原料与炔钠反应,合成了2,3, 4,5-四甲基-1-乙炔基-2-烯-环戊醇、1, 2 - 二苯基 -2 - 羟基 -3 - 丁炔 -1 - 酮、3, 4 - 二苯基 -1,5-己二炔-3,4 - 二醇和3,4 - 二苯基 -3 - 环戊烯 -1 -酮4种化合物.In low temperature, reaction of ketone with sodium acetylide synthe...