C2H2F4

C2H2F4 is the chemical formula for tetrafluoroethane. There are several isomers with this formula, most commonly 1,1,1,2-tetrafluoroethane and 1,1,2,2-tetrafluoroethane. These compounds are a type of hydrofluorocarbon (HFC). 1,1,1,2-tetrafluoroethane, often known by its refrigerant designation R-134a, is a gas at room temperature and pressure. It is a non-flammable, non-toxic, and colorless substance. Due to its properties and relatively low global warming potential compared to older chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs), R-134a found widespread use as a refrigerant in automotive air conditioning systems and in various other cooling applications. It also served as a propellant in some aerosol products and as a blowing agent in the production of foams. 1,1,2,2-tetrafluoroethane is a less common isomer. While HFCs like R-134a have been beneficial in phasing out ozone-depleting substances, they are potent greenhouse gases and are subject to regulations and phase-down efforts aimed at reducing their atmospheric concentration due to their contribution to climate change. Research and development continue to explore alternatives with even lower environmental impacts.