| 摘要 |
PURPOSE:To obtain the title composition consisting of 3,3-dichloro-1,1,1,2,2- pentafluoropropane, 1,3-dichloro-1,1,2,2,3-pentafluoropropane and 2-propanol and usable for flux cleaning, removal of attached water, etc. CONSTITUTION:The title composition consisting of 1-98wt.% 3,3-dichloro-1,1,1,2,2- pentafluoroporopane, 1-98wt.% 1,3-dichloro-1,1,2,2,3-pentafluoropropane and 1-16wt.% 2-propanol. The composition has excellent characteristics such that the conventional R113/alcohol mixed system has, and simultaneously has pseudoazeotropic characteristics. Thereby the title composition can be used likely to said conventional mixed system, with an extremely reduced change in composition thereof when recycled and no remarkable change of conventional technique is required. The title composition is useful as a removing agent of flux, grease, ink, etc., solvent for coating, extracting agent, cleaning agent for glass, plastic, precision machine, etc., draining agent, etc. |
