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Freon 113 Frigen 113 TR ... like most chlorofluoroalkanes, forms phosgene gas when exposed to a naked flame. [19 ... This page was last edited on 7 September 2024, ...
Phosgene is extremely poisonous and was used as a chemical weapon during World War I, where it was responsible for 85,000 deaths. It is a highly potent pulmonary irritant and quickly filled enemy trenches due to it being a heavy gas. It is classified as a Schedule 3 substance under the Chemical Weapons Convention.
Dichlorodifluoromethane (R-12) is a colorless gas popularly known by the genericized brand name Freon (as Freon-12). It is a chlorofluorocarbon halomethane (CFC) used as a refrigerant and aerosol spray propellant .
Chlorodifluoromethane (R-22 or HCFC-22), a type of Freon. [9] [10] Dichlorodifluoromethane (R-12 or CFC-12), the most commonly used Freon brand refrigerant prior to its ban in many countries in 1996 and total ban in 2010. 1,1,1,2-Tetrafluoroethane (R-134a or HFC-134a), one of the main replacements for the formerly widespread R-12.
When used as a refrigerant, R-114 is classified as a medium pressure refrigerant. The U.S. Navy uses R-114 in its centrifugal chillers in preference to R-11 to avoid air and moisture leakage into the system. While the evaporator of an R-11 charged chiller runs at a vacuum during operation, R-114 yields approximately 0 psig operating pressure in ...
The stock market has stumbled in recent weeks as rates have soared. This action played out on Friday as the 10-year Treasury yield ( ^TNX ) added about five basis points to creep near 4.8%, its ...
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Freon tanks awaiting CFC reclamation and container recycling in 2012 While new production of these refrigerants has been banned, large volumes still exist in older systems and have been said to pose an immediate threat to our environment. [ 56 ]