Search results
Chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs) are fully or partly halogenated hydrocarbons that contain carbon (C), hydrogen (H), chlorine (Cl), and fluorine (F), produced as volatile derivatives of methane, ethane, and propane.
Ninety is added to the CFC number, abc, to give as a result a number, xyz, that corresponds to the Carbon-Hydrogen-Fluorine (CHF) composition. If the carbon atoms are not saturated then additional chlorine atoms are required.
Freon, (trademark), any of several simple fluorinated aliphatic organic compounds that are used in commerce and industry. In addition to fluorine and carbon, Freons often contain hydrogen, chlorine, or bromine.
Perfluorocarbons or PFCs, are organofluorine compounds with the formula C x F y, meaning they contain only carbon and fluorine. [2] The terminology is not strictly followed and many fluorine-containing organic compounds are also called fluorocarbons. [1]
Hydrofluoro-olefins, isomers and stereo-isomers. Hydrofluoro-olefins (HFOs) have a double bond (C=C) and this introduces additional structure possibilities, resulting in designations such as HFO-1234ze(E) and HFO-1336mzz(Z). A straightforward example is HFO-1234yf.
17 lis 2023 · Chlorofluorocarbons (CFCs) are non-toxic, non-flammable chemicals composed of carbon, chlorine, and fluorine, with the term CFC originating from these constituent elements. They have been used in items such as aerosol sprays, foam-blowing agents, solvents, and refrigerants.
8 paź 2024 · Science Chemistry. The use of ozone-depleting chlorofluorocarbons (CFCs) in aerosol-spray propellants was banned beginning in the late 1970s in places such as the United States, Canada, and Scandinavia. (more) chlorofluorocarbon. chemical compound. Also known as: CFC. Written by. Francis A. Carey.
