对实验室合成溴乙烷的方法和步骤进行讨论。
初步分析了光线照射影响四溴乙烷合成反应的作用机理。
The mechanism of light influencing the addition reaction was also studied.
在乙腈溶剂中，碳酸钾存在下，双咪唑啉和1，2-二溴乙烷进行扩环反应，得到环状中间体一溴盐，产率78。
The reaction of bis-imidazoline with 1,2-dibromoethane and potassium carbonate in acetonitrile provided monobromide salt with a yield of 78.
通过气相色谱仪和气相色谱-质谱联用仪确定了某制药厂用回收的溴化钠生产的溴乙烷中所含杂质的具体成分及其含量。
The content and ingredient as well as origins of impurity in bromoethane made from dregs of bromine at a pharmaceutical manufacturer was analysed through GC and GC-MS.
以溴戊烷、溴己烷、1，2-二溴乙烷和亚磷酸三甲酯为原料，分别合成了戊基、己基、溴乙基取代的三种膦酸二甲酯化合物。
In this paper, three alkyl substituted dimethyl phosphonates have been synthesized by trimethyl phosphite with 1-Bromopentane, 1-Bromohexane and 1,2-Dibromoethane.
另外也发现压力对于三氟氯溴乙烷从纯水溶入DMPC的自由能改变所造成的影响很小，且对于三氟氯溴乙烷的偏好区域没有可观的影响。
It is also found that pressure has no detectable effect on the free-energy change of inserting a halothane from bulk water to DMPC, and does not change the regional preference of halothane, either.
从氟代甲苯出发，以醋酸为溶剂，采用液相空气氧化法，在钴锰盐和1，1，2，2-四溴乙烷催化体系存在下，合成了氟代苯甲酸，采用升华方法进行精制。
Fluorobenzoic acids were prepared from fluorotoluenes through liquid phase air oxidation with acetic acid as solvent and Co~(2+)-Mn~(2+)-1, 1,2,2-tetrabromoethane as catalyst.
介绍了以二氯乙烷或液溴为溶剂制取五溴甲苯的方法及其优缺点。
The preparation of pentabromotoluene was effected by utilizing dichloroethane and liquid bromine as reaction solvent, and their advantages and defects were pointed out.
目的建立溴芬酸钠原料中二氯甲烷、甲苯、1，2-二甲氧基乙烷、乙酸乙酯、乙醇残留量测定方法。
Objective To establish a method for detection of dichloromethane, 1,2-dimethoxyethane, toluene, ethyl acetate and ethanol in bromfenac sodium.
介绍了1，2-二苯乙烷的用途，其主要用途是用作合成十溴二苯乙烷阻燃剂的原料。
The effects of reaction conditions were determined. 1,2-Diphenylethane could be used as raw material for producing 1,2-diphenylethane decabromide as a flame retardant.
介绍了1，2-二苯乙烷的用途，其主要用途是用作合成十溴二苯乙烷阻燃剂的原料。
The effects of reaction conditions were determined. 1,2-Diphenylethane could be used as raw material for producing 1,2-diphenylethane decabromide as a flame retardant.
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