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Quasi-azeotropic mixture based on 1,1,1,3,3-pentafluorobutane, methylene chloride and methanol for the treatment of solid surfaces
Quasi-azeotropic mixture based on 1,1,1,3,3-pentafluorobutane, methylene chloride and methanol for the treatment of solid surfaces
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机译:基于1,1,1,3,3-五氟丁烷,二氯甲烷和甲醇的准共沸混合物,用于处理固体表面
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摘要
In order to replace 1,1,2-trichloro-1,2,2-trifluoroethane and 1,1-dichloro-1-fluoroethane in compositions for treating solid surfaces (in particular defluxing), the invention proposes the use of a quasi-azeotropic mixture containing, by weight, from 75 to 95% of 1,1,1,3,3-pentafluorobutane, from 1 to 15% of methylene chloride and from 1 to 10% of methanol.
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