摘要 |
PURPOSE:To obtain the subject composition composed of a highly fluorinated hydrocarbon as a base, having azeotropic behavior or a behavior close to azeotropic behavior and excellent characteristics as a detergent comprising decafluoropentane and n-heptane. CONSTITUTION:70-99wt.% 1,1,1,2,3,4,4,5,5,5-decafluoropentane is mixed with 30-1wt.% n-heptane and optionally a stabilizer such as a nitroalkane (preferably 0.05-0.5wt.%) to give the objective composition. |