... of R22 gas:R22 refrigerant, has properties providing for a broad range of applications, including residential air conditioning, refrigeration ... 30lbs), 22.7kg (50lbs)2.Applications:Chlorodifluoromethane (HCFC-22),a colorless gas at room temperature,is acolorless ,non - toxic, ... for pesticide and paint , or as a fire extinguishing agent. It is a primary feedstock for fluoropolymers.3.Other models: ...