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Chlorofluorocarbons (CFCs) are anthropogenic compounds that have been released into the atmosphere since the 1930s in various applications such as in air-conditioning, refrigeration, blowing agents in foams, insulations and packing materials, propellants in aerosol cans, and as solvents. [68]
1,2-Dichlorotetrafluoroethane, or R-114, also known as cryofluorane , is a chlorofluorocarbon (CFC) with the molecular formula ClF 2 CCF 2 Cl. Its primary use has been as a refrigerant. It is a non-flammable gas with a sweetish, chloroform-like odor with the critical point occurring at 145.6 °C and 3.26 MPa. When pressurized or cooled, it is a ...
cell – (biology) the structural and functional unit of all known living organisms and is the smallest unit of an organism that is classified as living; CFC – chlorofluorocarbon. CFCs are potent greenhouse gases which are not regulated by the Kyoto Protocol since they are covered by the Montreal Protocol. chlorinated hydrocarbon – see ...
Trichlorofluoromethane, also called freon-11, CFC-11, or R-11, is a chlorofluorocarbon (CFC). It is a colorless, faintly ethereal, and sweetish-smelling liquid that boils around room temperature. [5] CFC-11 is a Class 1 ozone-depleting substance which damages Earth's protective stratospheric ozone layer. [6]
Natural refrigerants are considered substances that serve as refrigerants in refrigeration systems (including refrigerators, HVAC, and air conditioning).They are alternatives to synthetic refrigerants such as chlorofluorocarbon (CFC), hydrochlorofluorocarbon (HCFC), and hydrofluorocarbon (HFC) based refrigerants.
That’s why Trump has called “tariff” the fourth-most beautiful word in the dictionary, behind “God,” “love” and “religion”: It’s a multifaceted tool to achieve three goals.
Among the many words in the dictionary, some stand out not just for their meanings—but for their sheer length. These lengthy words often intrigue and challenge even your favorite Spelling Bee ...
But diagnostically, there is a definition of aerophobia, and people with it have sets of symptoms. There are physical symptoms of that fear — fast heartbeat, sweating, trembling, dizziness ...