Skip to main content

  | मौसम…

411 समाचार
Public archive edition · Attributed source reporting with original dates · AI drafts are excluded

411 REFERENCE · Wikipedia

1,1,1-Trifluoroethane

Reference material by Wikipedia contributors. This retains its source identity and is not 411 news reporting.

R-143a the road Route 143 changed 477201622 1,1,1-Trifluoroethane.png 1,1,1-Trifluoroethane Methylfluoroform, 1,1,1-Trifluoroform, R-143a, HFC-143a, UN 2035 correct CAS 420-46-2 correct chemspider 9484 correct FDA 84581C5PRN 2035 206-996-5 9868 FC(F)(F)C 1/C2H3F3/c1-2(3,4)5/h1H3 UJPMYEOUBPIPHQ-UHFFFAOYAD correct chemspider 1S/C2H3F3/c1-2(3,4)5/h1H3 correct chemspider UJPMYEOUBPIPHQ-UHFFFAOYSA-N C2H3F3 84.04 g/mol Colourless gas 3.7 kg/m3 (gas) -111 -47.6 11 200 hPa (20 °C) 02 Danger 220 224 210 233 240 241 242 243 280 303+361+353 370+378 377 381 403 403+235 410+403 501 1,1,1-Trifluoroethane, or R-143a or simply trifluoroethane, is a hydrofluorocarbon (HFC) compound that is a colorless gas. It should not be confused with the much more commonly used HFC gas R-134a, nor confused with the isomeric compound 1,1,2-trifluoroethane. 1,1,1-Trifluoroethane has a critical temperature of 73 °C.Schoen J. Andrew http://www.jandrewschoen.com/refchart.pdf Listing of Refrigerants Andy's HVAC/R Web Page 2011-12-17 dead https://web.archive.org/web/20090319184345/http://www.jandrewschoen.com/refchart.pdf 2009-03-19 Applications Trifluoroethane is used as a refrigerant either by itself or more commonly as a component of blended mixtures. It is also used as a propellant in canned air products used to clean electronic equipment. Environmental effects thumb|left|upright=1.4|Growth of R-143a concentration in Earth's atmosphere since 2007.https://www.esrl.noaa.gov/gmd/hats/gases/HFC143a.html HFC-143a NOAA Earth System Research Laboratories/Global Monitoring Division 2021-02-12 thumb|left|HFC-143a measured by the Advanced Global Atmospheric Gases Experiment (AGAGE) in the lower atmosphere (troposphere) at stations around the world. Abundances are given as pollution free monthly mean mole fractions in parts-per-trillion. Unlike CFCs used as refrigerants, trifluoroethane has no chlorine atoms and therefore is not ozone-depleting. Its high chemical stability and infra-red absorbency make it a potent greenhouse gas with a lifetime of about 50 years and a global warming potential of 4300, which are at the high end compared to many other commonly used HFC refrigerants.https://www.ipcc.ch/report/ar5/wg1/ Chapter 8 AR5 Climate Change 2013: The Physical Science Basis 731Refrigerants - Environmental Properties http://www.engineeringtoolbox.com/Refrigerants-Environment-Properties-d_1220.html The Engineering ToolBox 2016-09-12 Its abundance in the atmosphere more than doubled from about 10 parts per trillion (ppt) in 2010 to near 25 ppt in 2020. See also List of refrigerants IPCC list of greenhouse gases inhalants References Category:Fluoroalkanes Category:Refrigerants Category:Hydrofluorocarbons Category:Trifluoroethyl compounds Category:Haloethanes