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。
应用推荐