R22 is the colorless gas under the normal temperature and the colorless liquid under its own pressure. Innocuous, odorless, nonflammable and non-explore. R22 has good hot stability and chemical stability and does not corrode the metal. Main use Mainly used in the air conditioner system and industrial and commercial refrigeration system as refrigerant. Can also be used as the insecticide and aerosol. R22 is the basic raw material to produce macromolecular compound containing fluorine and the intermediate to produce fire extinguishing agent 1211. Physical property: Molecular formula CHCLF2 Molecular weight 86.5 Boiling point (oC) -40.8 Critical temperature (oC) 96.0 Critical pressure (Mpa) 4.978 Critical desity (kg/m3) 525 Quaitly index: Grade Excellent Appearance Colorless Odor Odorless Purity(%) ≥ 99.8 Moisture(PPM) ≤ 10 Acidity(PPM) ≤ 0.1 Evaporation residue(PPM) ≤ 50