Developed in the 1930s, these halogenated hydrocarbons were widely used as refrigerants and aerosol propellants and in other applications because they are nontoxic and nonflammable and readily evaporate and condense .
Developed in the 1930s, these halogenated hydrocarbons were widely used as refrigerants and aerosol propellants and in other applications because they are nontoxic and nonflammable and readily evaporate and condense .