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农药和卫生防疫用的二二三(二氯二苯三氯乙烷)乳剂要求浓度在25％以上,以利运输和貯存.目前国内生产的乳剂貯备液是一种油溶液,其中含苯、樟油、松节油等有机溶剂占50％.为了节约有机溶剂的消耗,我们试制二二三水油两相乳剂,用水代替其中部分有机溶剂.由于乳化剂和乳化工具的缺乏,目前制备此项乳剂实有困难.因乳剂中二二三含量高,貯存时易破坏和产生结晶.我们曾利用机械搅拌法试制多种乳化剂,均不能
Pesticides and sanitation and epidemic prevention of two two three (dichloro-triphenyl trichloroethane) emulsion concentration required for more than 25%, for the benefit of transport and storage.Currently domestic emulsion reserve liquid is an oil solution, which contains benzene , Camphor oil, turpentine and other organic solvents accounted for 50% .In order to save the consumption of organic solvents, we trial two two three water emulsion, replacing some of these organic solvents with water. Due to the lack of emulsifiers and emulsifying tools, the current preparation of this Emulsion is actually difficult because of the two two three high levels of emulsion, storage is easy to destroy and produce crystallization. We have tried a variety of mechanical emulsification emulsifier, can not