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R-410A was invented and patented by Allied Signal (later Honeywell) in 1991. [5] Other producers around the world have been licensed to manufacture and sell R-410A. [6] R-410A was successfully commercialized in the air conditioning segment by a combined effort of Carrier Corporation, Emerson Climate Technologies, Inc., Copeland Scroll Compressors (a division of Emerson Electric Company), and ...
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DuPont: From the Banks of the Brandywine to Miracles of Science. Wilmington: E.I. du Pont de Nemours and Company. ISBN 0-8018-7059-3. Ndiaye, Pap A. (trans. 2007). Nylon and Bombs: DuPont and the March of Modern America; Zilg, Gerard Colby. DuPont: Behind the Nylon Curtain (Prentice-Hall: 1974) 623 pages, ISBN 0-13-221077-0; Zilg, Gerard Colby.
1,1,1,2-Tetrafluoroethane (also known as norflurane (), R-134a, Klea 134a, Freon 134a, Forane 134a, Genetron 134a, Green Gas, Florasol 134a, Suva 134a, HFA-134a, or HFC-134a) is a hydrofluorocarbon (HFC) and haloalkane refrigerant with thermodynamic properties similar to R-12 (dichlorodifluoromethane) but with insignificant ozone depletion potential and a lower 100-year global warming ...
At high temperatures, pentafluoroethane will decompose and produce hydrogen fluoride. This is observable as presence of sharp, pungent odour, which can be perceived in concentrations far below a dangerous level. Other decomposition products include carbonyl fluoride, carbon monoxide and carbon dioxide. Prior to re-entry of a room where HFC-125 ...
New research finds the optimal room temperature range for sleeping for older adults. Here, experts explain the best temperature for sleep.
Vespel is used in high-resolution probes for NMR spectroscopy because its volume magnetic susceptibility (−9.02 ± 0.25×10 −6 for Vespel SP-1 at 21.8 °C [5]) is close to that of water at room temperature (−9.03×10 −6 at 20 °C [6]) Negative values indicate that both substances are diamagnetic.
Understanding the temperature dependence of viscosity is important for many applications, for instance engineering lubricants that perform well under varying temperature conditions (such as in a car engine), since the performance of a lubricant depends in part on its viscosity.