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US5073206A Method of cleaning using azeotrope-like compositions of 1,1-dichloro-1-fluoroethane, methanol and nitromethane 失效
使用1,1-二氯-1-氟乙烷,甲醇和硝基甲烷的共沸组合物进行清洗的方法

Method of cleaning using azeotrope-like compositions of
1,1-dichloro-1-fluoroethane, methanol and nitromethane
摘要:
A method of cleaning a solid surface is disclosed. The method involves spraying the solid surface with azeotrope-like compositions by using a propellant. The azeotrope-like compositions comprise from about 93.0 to about 98.0 weight percent 1,1-dichloro-1-fluoroethane, from about 7 to about 2 weight percent methanol, and from about 0.1 to about 0.01 weight percent nitromethane. Preferably, the propellant is selected from the group consisting of hydrocarbons, chlorofluorocarbons, hydrochlorofluorocarbon, hydrofluorocarbon, dimethyl ether, carbon dioxide, nitrogen, nitrous oxide, methylene oxide, air, and mixtures thereof.
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