1,colorles,non-toxic,non-flammeable 2,High Purity 3,Competitive price 4,Fast Delivery 5, Friendly to the environment Characteristics:R22 is a colorless gas at room temperature, and a colorless, non-toxic, non-flammable and transparent liquid under the pressure created by itself. It has excellent themal and chemical stabilities and non-corrosive to metals. Its main applications include refrigerant ...