| 摘要 |
PURPOSE:To provide the title mixture which can be used as a fluorocarbon substitute, by mixing a member selected from n-hexane, 2-methylpentane, n- heptane, etc., with 1,1,2-trichloro-2,2-difluoroethane. CONSTITUTION:A member selected from among n-hexane, 2-methylpentane, 3-methylpentane, n-heptane, 2-methylhexane, 3-methylhexane, 2,2-dimethylpentane, 2,3-dimethylpentane, 2,4-dimethylpentane, 3-ethylpentane, 2,2,3-trimethylbutane and methylcyclopentane is mixed with 1,1,2-trichloro-2,2-difluoroethane to prepare a fluorinated hydrocarbon-based azeotropic mixture. The mixture is incombustible or flame retardant, provides an azeotropic compsn. and does not suffer from compsn. change even when recycled. The mixture has especially excellent detergency, and can be suitably used as a cleaning solvent for replacing fluorocarbon (flon) or the like. |
