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Trifluoromethane or fluoroform is the chemical compound with the formula CHF3. It is one of the "haloforms", a class of compounds with the formula CHX3 (X = halogen) with C3v symmetry. Fluoroform is used in diverse applications in organic synthesis. It is not an ozone depleter but is a greenhouse gas. See more About 20M kg/y are produced industrially as both a by-product of and precursor to the manufacture of Teflon. It is produced by reaction of chloroform with HF: CHCl3 + 3 HF → CHF3 + 3 HCl It is also generated … See more CHF3 is used in the semiconductor industry in plasma etching of silicon oxide and silicon nitride. Known as R-23 or HFC-23, it was also a useful refrigerant, sometimes as a replacement for See more • McBee E. T. (1947). "Fluorine Chemistry". Industrial & Engineering Chemistry. 39 (3): 236–237. doi:10.1021/ie50447a002. • Oram D. E.; Sturges W. T.; Penkett S. A.; McCulloch A.; … See more CHF3 is a potent greenhouse gas. A ton of HFC-23 in the atmosphere has the same effect as 11,700 tons of carbon dioxide. This equivalency, also called a 100-yr global warming potential See more • International Chemical Safety Card 0577 • MSDS at Oxford University • MSDS at mathesontrigas.com • Coupling of fluoroform with aldehydes using an electrogenerated base See more Web1 day ago · Lewis structure of CHF3 has 26 valence electrons in which 18 are lone pair electrons and 8 are bond pair electrons. CHF3 has four bond pairs and zero lone pairs so according to VSEPR theory, it has tetrahedral geometry with a bond angle of 109.5 degrees. The hybridization of CHF3 is sp3 in which one s and three p orbitals hybridized together … seat of werriwa
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WebNov 5, 1998 · CF3H / tBuOK as trifluoromethylating reagent In order to identify the trifiuoromethylating moiety, a low temperature 19F NMR study has been carried out. A solution of trifluorodaethane in anhydrous DMF was prepared at -45 (5 = - 0.93 ppm/TFA) and a fluorine internal standard was added. After tBuOK addition to this solution, a new … WebDec 1, 1996 · CF3I is an exception in that it increases the ignition delay at 900 K. How- ever, as the initial temperature increases, the effect decreases until at 1000 K the trend is … WebDec 7, 2012 · Fluoroform (also called trifluoromethane, CF 3 H, and HFC-23) is a large-volume by-product in the manufacture of chlorodifluoromethane (ClCF 2 H or HCFC-22) used in the production of end products such as Teflon (DuPont), polyvinylidene fluoride (PVDF), refrigerants, fire-extinguishing agents, and foams. It is also a potent and stable … puchko financial johnstown pa