非溶剂

Because the carbonyl in its structure is with strongly absorb-electron effect, so it is a kind of non-proton polarity solvent with high boiling point, high flash point and low melting point, use conveniently for many processing operation such as filtration, distillation, solvent extraction, and so on; it is with very low toxicity, so the harm to human body is inappreciable, and reduce the environment pollution; due to its very strong dissolvability, it can dissolve organic matter, inorganic matter, resin, polymer, etc., and activate all kinds of reagent, mix to dissolve the other high boiling point solvents; it is with very good stability, it is stable under the hot strong alkali and acidity condition, it is with water-resistance and light, oxygen stability.

246℃ m.p：—20℃闪点121℃ flash point： 121℃分子式：C6H12N2O molecular formula： C6H12N2O 分子量128.18 molecular weight： 128.18 二、DMPU的化学性质 Chemical character of DMPU 其结构中由于羰基具有强烈的吸电子效应，因而它是一种非质子的极性溶剂，具有高沸点、高闪点、低熔点，在过滤、蒸馏、溶剂萃取等工艺操作中使用方便；毒性极低，对人体危害微不足道，也减少了对环境的污染；由于它具有极强的溶解性，能溶解有机物、无机物、树脂、聚合物等，并对各种试剂具有活化性质，还能与其它高沸点溶剂混溶；具有极好的稳定性，在热的强碱和酸性条件下都很稳定，还具有耐水性及对光、氧的稳定性。

Adding a few of co-solvent properly is favorable to SAA process in the experiments of water soluble drugs, and better results will be obtained. Considering solvent has significant effects on phase equilibrium in the saturator, ethanol is more suitable for the experiments of non-water soluble drugs.

处理水溶性药物时，适当地加入一些协溶剂有利于SAA过程的进行，并能得到更好的实验结果；处理非水溶性药物时，溶剂对混合器内的相平衡行为有重要的影响，乙醇更适合作为SAA过程的溶剂。

Base on the nonequilibrium solvation theory, the numerical calculation formulas for the conductor-like-screening-model have been established.

基于非平衡溶剂化理论，推导了用于非平衡溶剂化能数值计算的类导体屏蔽模型的相关公式。

Liquid-phase epoxidation of allyl chloride with hydrogen peroxide was carried out over Ti-MWW, a novel titanosilicate with the MWW structure, to synthesize epichiorohydrin selectively and effectively. Ti-MWW proved to be superior to the conventional TS-1 catalyst in both catalytic activity and product selectivity. Ti-MWW prefers aprotic solvents of acetone and acetonitrile, both of which can restrain the solvolysis of epichiorohydrin, whereas TS-1 favors a protic solvent of methanol.

研究了具有MWW结构的新一代钛硅分子筛Ti-MWW催化剂对烯丙基氯液相环氧化高效合成环氧氯丙烷的催化性能结果表明，Ti-MWW的催化活性以及产物选择性均优于传统的钛硅分子筛TS-1，对于Ti-MWW，合适的溶剂为非质子性溶剂丙酮和乙腈，在该溶剂中环氧化物不易发生溶剂化开环反应；而对于TS-1，合适的溶剂是质子性溶剂甲醇，但甲醇可导致醇醚副产物的生成。

The result show, pH of solution, the type and concentration of surface-active agent all have marked effect, pH change can transform the disperse behavior of attapulgite particle by altering granularity distributing in different range, influencing double electromotive force between particle and solution.

研究表明，水溶液的pH值、表面活性剂的类型和浓度对凹土的分散稳定性皆有显著的影响，pH值的变化改变了不同粒径范围的粒子总量分布，改变粒子与溶液间双电层电动势，从而改变凹土粒子的分散行为：由于凹土作为带电粒子在极性溶剂中容易达到物理分散的目的，因此，凹土在极性溶剂中的分散状况大大优于在非极性溶剂中的分散。

The research on bound rubber and reinforcing effect of mineral filler showed that there are four kind of interactions between filler and rubber matrix in uncured mix The unbounded rubber on the surface of filler will solve in organic solvent The rubber bounded by stronger physical or chemical interaction with filler will dissolve in organic solvent The bound rubber on the surface of filler by different extent acid-base interactions will solve in basic organic solvent The bound rubber on the surface of filler by chemical action (no acid-base type) will dissolve in basic organic solvent

结合橡胶和增强作用的研究表明，在混炼胶中，硅橡胶与矿物填料的作用形式有四种。没有联结在矿物表面的非结合橡胶和仅靠物理吸附联结在填料表面的硅橡胶将溶解于有机溶剂；与填料有较强相互作用的硅橡胶不溶于有机溶剂；通过不同层次的酸碱作用联接在矿物表面的硅橡胶将溶解于碱性有机溶剂；与填料有牢固化学结合的硅橡胶不溶于碱性有机溶剂。

Chapter three: The studies of zinc dust assisted the green carbonyl olefination under thesolvent-free conditions.

第三章：锌粉促进无溶剂下羰基化合物的绿色烯基化反应研究该部分首次研究了在TMSiCl存在下，无溶剂非催化条件下，锌粉促进溴化苄与羰基化合物的烯基化反应，发现在无溶剂锌粉促进下，可以将羰基化合物立体选择性

The composite fiber includes a fiber that is gelable, and a fiber that is ungelable by the non-aqueous solvent.

该复合纤维包括一种通过非水溶剂可胶凝的纤维，和一种不能通过该非水溶剂胶凝的纤维。

Recovery of maleic anhydride using nonaqueous agent is the direction of MA production.

非水溶剂法吸收顺丁烯二酸酐是顺酐生产的发展方向，为开发非水溶剂吸收顺酐的工艺，本文进行了顺酐在有机溶剂中的溶解度。。。

In this work, the ionic liquids was used as the microwave absorption medium and an ionic liquid-non polar solvent microwave extraction method was developed. The proposed method was applied to the extraction of the chemical constituents from the root of Panax ginseng C.M.

以离子液体作为微波吸收介质建立了离子液体-非极性溶剂微波提取法，对人参中的化学成分进行了提取，并将该法与固体微波吸收介质-非极性溶剂微波提取法、极性溶剂微波提取法以及混合溶剂微波提取法进行了对比。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了