| 摘要 |
PURPOSE:To provide a new solvent composition for drainage capable of removing bonded water in the same way as 1,1,2-trichlorotrifluoroethane (R113) in order to correspond to circumstances such that an R113 type drainage agent is limited in use to become extensively unusable in future because it destructs an ozone layer and has a doubt becoming a cause bringing about the generation of skin cancer in spite of its various advantages. CONSTITUTION:In a solvent composition for drainage containing a surfactant composed of at least one of salts formed by reacting 4-5C carboxylic acids and 6-20C primary amines and dichloromethane, 0.1-20wt.% of a salt formed by reacting a carboxylic acid such as butanoic acid and a primary amine such as oleylamine is added to dichloromethane. |
