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Dichloro-difluoro-methane

Dichlorodifluoromethane is a gas that was used as a refrigerant.

Chemical Formula: CF₂Cl₂

Layman's explanation: Dichlorodifluormethane is a colorless gas with an ether-like odor. It is nonflammable and has low toxicity. In the early 1930s, Midgley found dichlorodifluoromethane or freon to be an ideal refrigerant, replacing toxic chemicals such as ammonia and dichloromethane. In addition, this gas has been used in aerosol propellants such as sprays in cosmetics and inhalers for medications. However, freon is bad for the environment and was banned in 1996 after more than 60 years of use. Due to the ban, other less damaging chemicals have been developed.

Keywords: propellant, refrigerant, freon, pollutant

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