另一种2-巯基苯并噻唑法是先将溴氯甲烷与硫氰化钠反应生成硫氰酸氯甲酯，然后硫氰酸氯甲酯与2-巯基苯并噻唑反应得到苯噻氰。
It can also be prepared by reaction of bromochloromethane with sodium thiocyanate to obtain chloromethyl thiocyanate, and then it reacts with 2-mercapto-benzothiazole.
氯甲烷接触史是诊断的重要依据。
所以四氯甲烷的解离电离过程一直都受到人们的重视。
Therefore, dissociation of tetrachloromethane ionization process has been subject to attention.
二氯甲烷-乙醇等混合溶剂是HPMCAS的良溶剂；
The dichloromethane-ethanol system was the excellent solvent for HPMCAS.
采用天然气热氯化法生产二氯甲烷以供感光材料工业作溶剂。
Use of natural gas for heat chlorination methylene chloride for the production of photographic materials for industrial solvent.
目的建立工作场所空气中二氯甲烷的溶剂解吸气相色谱测定方法。
To establish a gas chromatography method for solvent desorption of dichloromethane in the air of workplace.
主营甲醇，乙醇，乙二醇，丙酮，二氯乙烷，二氯甲烷，二乙二醇。
Main methanol, ethanol, ethylene glycol, acetone, ethylene dichloride, methylene chloride, diethylene glycol.
反应后用二氯甲烷萃取，无水硫酸钠干燥，除去溶剂后得到纯净产物。
After reaction, the purified product was obtained through extraction with dichloromethane, drying with anhydrous sodium sulfate and desolventizing.
由于四氯甲烷具有一定的毒性会破坏人体及动物肝脏，并且会破坏臭氧层。
Because the toxicity of tetrachloromethane would destroy certain human and animal liver, and damage the ozone layer.
生产工艺过程产生的丙酮，原料挥发产生的二氯甲烷、丙酮等产生量较小。 缪。
Thee output of acetone and dichloromethane which raw material volatilized is little.
他们坚信手机是“一种致癌物质”，将其危害等同于铅毒、发动机排气及三氯甲烷。
They determined that mobile phones are a " possible carcinogen, " listing use of the devices in the same category as lead, engine exhaust and chloroform, CNN reported.
在室温条件下，采用体积比4∶1的甲醇和盐酸混合溶液提取，用二氯甲烷萃取。
Under room temperature conditions, spinach was extracted with methanol-HCl (4:1 by vol), followed by a second extraction in methylene dichloride.
催化烷基氯和苯的反应，其中二氯甲烷和苯反应得到5倍量的单一产物二苯甲烷。
This system also can catalyze the reaction of benzene with alkyl chloride, in which only the desired diphenylmethane is isolated in good yield (5 equiv. ).
中国国内二氯甲烷用于医药行业的数量约为二氯甲烷总销售量的15- 20%。
The amount of Chinese domestic dichloromethane used in the medicine industry is about 15-20% of the total sales quantity of dichloromethane.
MS分析显示：烟叶表面二氯甲烷萃取物和叶内萃取物在化学成分方面存在质和量的差异。
The GC-MS composition analysis indicated that there were significant differences between surface extraction and inside extraction in quality and quantity.
本文确定了药物合成过程中经常使用的有机溶剂（乙醇、乙腈、二氯甲烷）残留量的检测方法。
This thesis introduces the test and demonstration of checking method of ethanol, methyl cyanide and dichloride methane which are forbidden.
通过对一氯甲烷高压热氯化的临界参数及相关数据的计算，对反应的相态进行了分析并得出结论。
Through calculating the critical parameter and relative data of methyl chloride high pressure thermal chlorination, the phase of this reaction has been analyzed with some conclusion being obtained.
四氯甲烷也是一种较常见的化工原料，是一种良好的有机溶剂，在化学实验中常被作为萃取剂等。
Tetrachloro-methane is also a common good chemical organic solvent; and often used as the extractive agent in chemical experiments.
目的：建立一种气相色谱法测定原料药头孢唑肟钠中二氯甲烷和四氢呋喃有机溶剂残留量的方法。
Objective: We detected the content of methylene chloride and diethylene oxide in Ceftizoxime Sodium using head-space GC method.
用活性碳吸附管采集大气中的苯系物，二氯甲烷替代二硫化碳作为脱附剂，毛细管气相色谱分离分析。
BTEX in air were adsorbed by active carbon tube, replaced carbon bisulfide by dichloromethane as reagent, analyzed by using Capillary GC-FID.
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.
采用丙酮加水提取土壤中的阿特拉津，再用三氯甲烷萃取，经浓缩、定容后，用毛细管气相色谱法测定。
Using acetone adds the water withdraws the atrazine in the soil, than extract with trichloromethane, after concentrated and settle to permit, use the capillary gas chromatography.
样本用丙酮提取，加二氯甲烷萃取，通过中性氧化铝和活性炭混合柱层析净化，然后上气相色谱用NPD检测。
The procedure was described, including extraction by acetone and dichloromethane, cleaning up by passing through a column made up of neutral alumina and active carbon, determination by GC with NPD.
结果表明，与硫酸铝相比，三氯化铁可以更好地控制三氯甲烷的生成量，对有机物的去除方面，也具有良好的效果。
The results showed that: compared with that of aluminium sulphate, ferric chloride has priority over aluminium sulphate in controlling trihalomethane formation and organic matter removal efficiency.
报道了以活性炭为载体，以过渡金属无机盐为复合催化剂，在气相条件下四氯化碳与甲醇反应制备(一)氯甲烷的研究结果。
Experimental results were reported here regarding the gas phase conversion of CTC to methyl chloride by using transition metal salt composite catalyst embedded on active carbon.
报道了以活性炭为载体，以过渡金属无机盐为复合催化剂，在气相条件下四氯化碳与甲醇反应制备(一)氯甲烷的研究结果。
Experimental results were reported here regarding the gas phase conversion of CTC to methyl chloride by using transition metal salt composite catalyst embedded on active carbon.
应用推荐