Appearance and Odor: Colorless Liquied GasGAS Boiling Point: -27F,-33C Vapor Pressure (MM Hg/70 F): 96 PSIA Vapor Density (Air=1): 3.6 Moisture: 10 PPM max. Acidity: 0.1PPM max. Usage: extensively used as refrigerant instead of R12. Packing: 13.6kg/22.7kg Steel Cylinders.