乙烷

Chlorinated hydrocarbons, such as dichloroethylene, trichloroethylene, tetrachloroethylene, and trichloroethane, are common contaminants found in soil and groundwater. Due to the characteristics of their toxicity, they are extremely harmful to human health and the environment.

含氯碳氢物(二氯乙烯、三氯乙烯、四氯乙烯、三氯乙烷等)是土壤及地下水污染场址中最常见的污染物，其具毒性之特性，对人体健康与环境危害甚钜。

This investigation focuses on pigment phthalocynine green G modified with octadcylamine, which is suspended in tetrachloroethylene and 1,2-dibromoethane using span-80 and CH-6 hyperdispersants as emulsifiers.

采用正交设计方法，以十八胺改性酞菁绿G形成电泳颗粒，以四氯乙烯和1，2-二溴乙烷的复配液为分散介质，Span-80和CH-6超分散剂为稳定剂，制备了分散性和稳定性良好的电泳显示液。

The results of the adsorption/desorption kinetics show that the adsorption/desorption behaviors of dichloroethylene, thrichloroethylene (Huang,2003), tetrachloroethylene ,and 1,1,1-thrichloroethane on Ca- montmorillonite are not irreversible.

由吸/脱附动力之实验结果显示，二氯乙烯、三氯乙烯(黄，2003)、四氯乙烯以及三氯乙烷於钙饱和蒙特石上之吸/脱附行为没有不可逆的现象发生。

Using a phase equilibrium apparatus, the solubilities of anthracene and carbazole in dimethyformamide, N-methylpyrrolidinone, cyclohexanone, xylene, dichloroethane and tetrachloroethylene were determined and solubility curves were drawn, providing useful data for crude anthracene processing.

利用液固相平衡实验装置，测定了蒽和咔唑在二甲基甲酰胺、N-甲基吡咯烷酮、环己酮、二甲苯、二氯乙烷和四氯乙烯中的溶解度，并作出溶解度曲线，为粗蒽的分离和精制提供了有用数据。

With nucleus-shell polymer MBS as toughener,epoxy ethane as compatibilizer,nylon1212/MBS/epoxy blend was prepared by means of blending extrusion,and the mechanical properties of the prepared blend were determined.

采用核-壳聚合物MBS为增韧剂和环氧乙烷为相容剂，采用共混挤出的方法，制备了尼龙1212/MBS/Epoxy共混合金，测定了力学性能。

Choline chloride is one of B race vitamins and is synthesized by oxirane,hydrochloric acid and trimethylamine.

氯化胆碱由环氧乙烷、盐酸与三甲胺为原料合成，是B族维生素之一，是一种不能替代的饲料添加剂，市场上存在造假掺杂行为，对于各种掺杂行为进行分析识别，并提出鉴别方法

At the same time , through investigating the catalysis of woodiness active carbon , the results show that it also has good activity in the hydration reaction of EO to EG , but that awaits for further studying.

实验中也对木质活性炭进行了考查，发现其对环氧乙烷水合反应也有很好的活性，有待进一步的研究。

The catalytic system composed of NHPI and transition metal ion can catalyze effectively ethane into acetic acid,cyclane into dicarboxylic acid,toluene into benzoic acid,alkene into epoxide,alkyne into acetylenic ketone,and amide into imide;NHPI used alone can catalyze adamantane to be carbonylated,hydrogen peroxide prepared by oxidization alcohol;NHPI combined with as...

NHPI与过渡金属离子组成的催化体系能高效地催化乙烷氧化为乙酸、环烷烃氧化为二元羧酸、甲苯氧化为苯甲酸、烯烃氧化为环氧化物、炔烃氧化为炔酮、酰胺氧化为酰亚胺；NHPI单独使用能催化金刚烷发生氧化羰基化反应、催化氧化醇制取过氧化氢；NHPI与有机助催化剂如偶氮二异丁腈、溴化季铵盐、蒽醌和醇等也能催化分子氧氧化反应。

Various synthetic method of 1,3-propanediol were introduced and compared, including hydration and hydrogenation of acrylaldehyde, carbonylation of epoxy ethane , microbiological fementation, the process starting from methyl aldehyde, etc.

介绍了1，3-丙二醇的几种制备方法，即丙烯醛水合-氢化法、环氧乙烷羰基化法、微生物发酵法和以甲醛等为原料的方法。

Monte Carlo simulation technique in the grand canonical ensemble with TraPPE force field by adjusting the partial force field parameter to fitting the isotherm adsorption of pure component was employed to simulate the adsorption of methane ,ethane and the sep- aration of their mixtures in siliclite-1 respectively.

采用TraPPE力场、巨正则系综蒙特卡罗的方法，通过调节部分力场参数，拟合纯组分等温吸附的实验数据，研究了甲烷、乙烷纯组分在silicalite-1中的吸附平衡性及其共混物的分离性。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。