Halocarbon 32 is used for plasma etching and disassociates into reactive fluoride ions in the presence of an RF field.Difluoromethane in a zeotropic (50%/50%) m/m mixture with pentafluoroethane (R-125) is known as R-410A, a common replacement for various chlorofluorocarbons (aka Freon) in new refrigerant systems, especially for air-conditioning.