查询词典 sulfur ether

Objective］ The research aimed to improve the comprehensive surface performance of lauryl polyoxyethylene ether (AEO3) by means of modification.［Method］ AEO3 was synthesized from lauryl alcohol and epoxy ethane, which reacted with liquid chloroacetic acid to produce modified AEC.

［目的］对月桂醇聚氧乙烯醚（AEO3）进行改性来提高它的综合表面性能［方法］用月桂醇、环氧乙烷合成月桂醇聚氧乙烯醚（AEO3），再用AEO3与液体氯乙酸反应改性合成AEC。

A novel anionic gemini surfactant,didodecyl-ethoxylate bis-sodium sulfate was prepared in three steps using lauryl alcohol,glycol-epiglyceride and chlorosulfonic acid as raw materials and BF_3-ethyl ether as catalyst.The chemical structure of the product was confirmed by IR spectrum.

以十二醇、乙二醇二环氧甘油醚和氯磺酸为原料，以BF3-乙醚为催化剂，通过三步法制备阴离子型双子表面活性剂双十二烷基乙氧基二硫酸酯钠；红外光谱对其结构进行了表征，测定了其表面活性和发泡力等性能。

The ether phase was dried over Na2SO4, filtered, and concentrated in vacuo.

乙醚阶段是干超过硫酸钠，过滤，并集中在真空中。

The combined ether phases were dried over Na2SO4, filtered, and concentrated in vacuo.

合并 醚阶段干燥超过硫酸钠，过滤，并集中在真空。

Group A = atmospheres containing acetylene; Group B = atmospheres containing hydrogen; Group C = atmosphere containing ethyl-ether vapors, ethylene, or cyclopropane; Group D = atmospheres containing gasoline, hexane, naphtha, benzene, butane, propane, alcohol, acetone, benzol, lacquer, solvent vapors or natural gas.

组A =大气中含有乙炔；组B =大气中含有氢；组C =大气中含有乙醚蒸汽，乙烯，或环丙烷；组D =大气中含有汽油，乙烷，石脑油，苯，丁烷，丙烷，酒精，丙酮，不纯苯，漆，溶剂蒸汽，或天然气。

Thus,the effects of the trace of impurities such as water,methanol and diethyl ether in the feedstocks on the stability of catalytic properties and deactivation of the chloroaluminate ionic liquid were studied in continuous alkylation.

在连续操作的烷基化实验装置上考察了烷基化原料中的微量水、甲醇和乙醚对离子液体寿命和催化性能的影响。

The virus was not sensitive to chloroform, diethyl ether and trypsin and possessed acid-resistant and heat-resistant features.

病毒核酸类型鉴定为RNA病毒。生物学和理化学特性鉴定结果表明，GD株为强毒DHV。

Rats were fed a purified diet for 6 wk before anesthesia with1 of 3 anesthetics: carbon dioxide, diethyl ether, or isoflurane.

大鼠在用纯净的饲料喂养6周后，分别用二氧化碳、乙醚、异氟醚麻醉。

Thermodynamics analysis for the reaction system showed that high-temperature was favorable to produce ethylene, but byproduct diethyl ether yield increased under low-temperature.

对乙醇脱水的热力学分析表明，高温有利于目的产物乙烯的生成，低温有利于副产物乙醚的生成。

The reaction was stirred for the given time (the reaction was followed by TLC) after which the methanol was removed and the residual ionic liquid was extracted with diethyl ether (3 15 mL).

反应搅拌为在给定的时间（反应，其次是薄层色谱法）后，其中甲醇被删除，剩余的离子液体中提取二乙酯基醚。

You can buy sweetened beverages, if that suits you.

你若喜欢的话，可以买些含有糖精的混合饮料。

As many of you are probably aware, Nick and Vanessa were recently faced with an embarrasing sex scandal after naked pictures of the two getting jiggy with it in a hot tub surfaced the net.

正如很多你可能知道，尼克和 Vanessa 最近面临一个尴尬的绯闻事件后，赤裸裸的图片两个越来越jiggy与它在浴缸中的一个热点浮现净。