Use of natural gas for heat chlorination methylene chloride for the production of photographic materials for industrial solvent.
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。
Using 3, 5-dimethyl phenol as raw materials, sulfuryl chloride as chlorination reagent and carbon tetrachloride as solvent to synthesize chloroxylenol.
以3,5 -二甲酚为原料，硫酰氯为氯化剂、四氯化碳为溶剂，合成对氯间二甲酚。
Conclusion The 0. 9% sodium chloride injection was a valid solvent for intramuscular injection of HCG to alleviate pain.
结论采用0.9%氯化钠溶液做溶媒肌内注射hcg，能有效缓解患者疼痛，是一种安全可靠的溶媒。
Methods:Chloroform being solvent, under bath heat, 4 hydroxymethyl caged bicyclic phosphate acylated with pentanoyl chloride and hexanoyl chloride dividedly.
方法：用氯仿作溶剂，在浴温条件下，4羟甲基笼状双环磷酸酯分别与戊酰氯、己酰氯发生酰化反应。
The following table is based on the guidelines of ASTM D 2855, "Standard Practice for Making Solvent-Cemented Joints with Poly Vinyl Chloride (PVC) Pipe and Fittings".
下表以美国材料实验协会ASTMD 2855“聚氯乙烯（PVC）管道和管件液状粘固剂连接标准规程”有关标准制定。
Using phenol and benzyl chloride as raw materials and n, N-dimethyl formamide (DMF) as solvent, benzyl phenyl ether was synthesized under microwave radiation.
采用微波辐射技术，以苯酚、氢氧化钾和氯化苄为原料，N, N -二甲基甲酰胺为溶剂合成了苄苯醚。
The powder had porous structure by means of the mixture solvent of alcohol and calcium chloride.
以乙醇 氯化钙混合溶剂制备的粉末内部具有多孔结构；
Friedel-Crafts acetylation of salicylamide(SA) with acetyl chloride to 5-acetylsalicylamide using triethylammonium chloroaluminate ionic liquid(IL) as both catalyst and solvent was investigated.
实验以盐酸三乙胺-三氯化铝离子液体（IL）为催化剂，催化水杨酰胺（SA）与乙酰氯进行傅克酰基化反应合成5乙酰水杨酰胺。
Removal of cobalt from copper chloride solution by solvent extraction with P204 is studied.
研究了用溶剂萃取法从氯化铜溶液中去除钴。
In the reaction of chlorosulfonation carbon tetrachloride was used as solvent, adding the sodium chloride in later stage reaction.
在氯磺化反应中引入了四氯化碳溶剂，在反应后期加入氯化钠。
Objective: Using the headspace Gas - chromatography methods to measure the assay of residual solvent (acetone, ethylene chloride and ethanol) in Cefazolin sodium.
目的：建立一种气相色谱法同时测定原料药头孢唑林钠中有机溶剂丙酮，二氯甲烷、乙醇残留量的方法。
Effects of solvent, sodium sulfide dosage, reaction time and reaction temperature in syn thesis of dibenzyl sulfide from benzyl chloride with sodium sulfide without catalyst were studied.
研究了无催化剂存在时，溶剂、硫化钠用量、反应时间和反应温度对从氯化苄和硫化钠合成二苄基硫醚的影响。
To treat tetramethyl ammonium chloride with H2SO4 in organic solvent, a precipitate is produced. A white crystallizing solid TMAHS is prepared after filtrating, washing and drying.
以H_2SO_4处理四甲基氯化铵的有机溶液，立即生成沉淀，经过滤、洗涤、干燥后，得到白色结晶状固体——TMAHS。
The method comprises the following steps of: firstly, adding dried lithium chloride and potassium hexafluorophosphate to an organic solvent and stirring;
首先，将干燥的氯化锂和六氟磷酸钾加入有机溶剂中搅拌；
The said fireproof solvent consists of magnesium chloride, sodium chloride, barium chloride and ammonium bicarbonate.
所述阻燃溶剂包括氯化镁、氯化钠、氯化钙、氯化钡和碳酸氢氨。
The said fireproof solvent consists of magnesium chloride, sodium chloride, barium chloride and ammonium bicarbonate.
所述阻燃溶剂包括氯化镁、氯化钠、氯化钙、氯化钡和碳酸氢氨。
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