氯甲烷

High quantity level of chlorobenzene and phenol to impregnated into PET flakes by using dichloromethane as solvent.

用二氯甲烷作为溶剂，以大数量级把氯苯和苯酚浸泡入洁净PET薄片中。

S environmental consciousness and popularization of the cleanness craft, high toxicity, high dangerous phosgene, dimethyl sulfate, chloromethane and methyl chlorocarbonate, etc., will be washout in the world.

随着人们环保意识的提高和清洁工艺的推广，高毒性、高危险性的光气、硫酸二甲酯、氯甲烷、氯甲酸甲酯等化学品在世界范围内必然被淘汰。

This method can separate efficiently and determine dichloromethane and dichloroethylene accurately in the water and only takes 4.2 minutes.

方法仅用4.2min完成饮用水中二氯甲烷和二氯乙烯的分离和测定，操作简便、灵敏。

Properties White powder, inodorous, non-toxic, soluble in dilute alkali solution, carbon disulfide, benzene, acetone, dichloromethane and a little soluble in chloroform, insoluble in alcohol, carbon tetrachloride and ethyl acetate.

性质 白色粉末。无毒、无味。溶于稀碱、二硫化碳、苯、丙酮和二氯甲烷，微溶于氯仿，难溶于乙醇、四氯化碳、醋酸乙酯。

DMC is a green chemical industry product which rapidly developed in the recent years, it can substitute for the organic chemical basic raw material such as the bigger toxic carbonyl chloride, methyl chloride, methyl chloroformate and so on, it is vital significance to the environmental protection.

碳酸二甲酯是近年来迅速发展起来的环境调和型绿色化工产品，它是可用于替代毒性较大的光气、氯甲烷、氯甲酸甲酯等物质的有机化工基本原料，对于环境保护具有重要意义。

Preferably, the product is a monohalogenated methane, more preferably, methyl chloride.

优选地，所述产物是单卤代甲烷，更优选为氯甲烷。

Treatment of N-p-tolylsulfonylindole 1 with acetyl chloride in dried dichloromethane gave the title compound, N-p-tolylsulfonyl-3-acetyl-indole 2 C17H15NO3S, M(subscript r=313.36 in 89% yield. Single-crystal structure of 2 was determined by X-ray crystallography.2 crystallizes in the triclinic system, space group P-1 with a=10.0264(13), b=12.5913(16), c=14.1621(18)?

N-对－甲苯磺酰－吲哚(1)在二氯甲烷中与乙酰基氯反应得到产率为89%的N-对－甲苯磺酰－3-乙酰基－吲哚(2)（分子式：C17H15NO3S，分子量：313.36），用单晶X-射线衍射方法测定了2的晶体结构并表明：属三斜晶系，空间群为P-1，单胞参数为a=10.0264(13)，b=12.5913(16)，c=14.1621(18)？

Methods The pesticides were extracted with acetone and dichloromethane, warmed with water at 40℃,and circumrotated and evaporated until it was nearly dry, then it was purified by Envi Carb column and Sep Pak NH2 column. Afterwards, gas chromatography mass spectrometry and selected ion monitoring were used to determine 42 pesticide residues, such as organo-phosphorus, pyrethroid, organochlorine, carbamate and weedicide.

该法采用丙酮、二氯甲烷提取，40℃水浴旋转蒸发近干，以Envi-Carb柱和Sep-Pak-NH2柱净化，以气相色谱－质谱选择离子监测方式分析检测有机磷、有机氯、拟除虫菊酯、氨基甲酸酯和除草剂等42种农药残留。

Dichloromethane or chloroform is an appropriate solvent for the acylation reaction when the addition of a solvent is necessary in the some cases.

在需要加入溶剂的情况下，二氯甲烷或氯仿是一种合适的溶剂。

Our company is mainly engaged in chemical raw materials trading, the company mainly engaged in: toluene, xylene, mesitylene, durene, 6 # 120 # 200 # solvent, ethyl acetate, butyl acetate, acetone, butanone, cyclohexanone, isophorone, MIBK, isopropyl alcohol, isobutyl alcohol, butanol, mixed alcohols, methanol, ethanol, ethylene glycol, diethylene glycol, diacetone alcohol, Anti-White Water, CAC, n-hexane, dichloromethane, trichloro-B, DMF, 5 # 10 # 15 # white mineral oil, lubricating oil, sewing machine oil, as well as high-pressure polyethylene, linear polyethylene, low-pressure polyethylene, polypropylene, rubber and other chemical raw materials.

我公司主要从事化工原料贸易，公司主要经营：甲苯、二甲苯、三甲苯、四甲苯、6# 120# 200#溶剂、醋酸乙酯、醋酸丁酯、丙酮、丁酮、环已酮、异佛尔酮、MIBK、异丙醇、异丁醇、正丁醇、混丙醇、甲醇、乙醇、乙二醇、二甘醇、二丙酮醇、防白水、CAC、正已烷、二氯甲烷、三氯乙、DMF、5# 10# 15#白矿油、润滑油、针车油以及高压聚乙烯、线性聚乙烯、低压聚乙烯、聚丙烯、橡胶等各种化工原料。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。