| 摘要 |
PURPOSE:To provide the subject novel composition composed of a specific hydrogen-containing halogenated hydrocarbon (mixture), usable as a substitute for fluorocarbon and having excellent characteristics as an operation medium, etc., for refrigerator, heat pump, waste heat recovery power plant, heat- exchanger, etc. CONSTITUTION:The objective composition is composed of one or more kinds of hydrogen-containing halogenated hydrocarbons selected from R225ca (CF3 CF2CHCl2), R225cb (CClF2CF2CHClF), R225cc (CHF2CF2CCl2F), R226ca (CF3CF2 CHClF) and R226cb (CClF2CF2CHF2). |
