| 摘要 |
PROBLEM TO BE SOLVED: To provide an alternative mixed solvent composition having excellent properties of conventional 1,1,2-trichloro-1,2,2-trifluoroethane and causing no influence on stratospheric ozonosphere. SOLUTION: This mixed solvent composition comprises one or both of methanol and ethanol, 1H-perfluoro hexane and a≥5C hydrocarbon, wherein the ratio (methanol and/or ethanol)/(1H-perfluoro hexane)/(≥5C hydrocarbon)=(1 to 25)/(50 to 98)/(1 to 25). COPYRIGHT: (C)2003,JPO
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