Freon 22 Other names: Difluorochloromethane Monochlorodifluoromethane F22 1-Chloro-1,1-difluoromethane Formula: CHClF2 CAS: 75-45-6 Weight: 86,47 g/mol Boiling point: -40,9 °C Melting point: -160°C Density: 1,29 g/cm3