... instead of R22 alternative. The last instead of R22 will be European Union countries in 2015Refrigerant Gas R22 R22 can ... , commercial refrigeration and other refrigeration and air conditioning systems; can be used as pharmaceuticals, pesticides, cosmetics, cleaning products, aerosol propellants, ... of HCFC-22, HCFC-124 and HCFC-142b, and should always be charged in liquid phase. It is used as a reply ...