See 1,1,1,2-Tetrafluoroethane

Quinone) see p-Benzoquinone (R-134a) see 1,1,1,2-Tetrafluoroethane (Reglone ) see Diquat dibromide Rivolta M.T.X. 60/100 Round Up (Glyphosate)... 

Hydrofluorocarbon 134a (1,1,1,2-tetrafluoroethane) is used as a replacement for Freon 12 (see Problem 4.2) for refrigeration applications. (Why is such a replacement necessary and what is the advantage of HFC-134a from an environmental... 

Tetrafluoroethane (R-134a) Tetrafluoroethylene Tetrafluoromethane (Freon 14) Tetrahydrofuran (THE) (Tetrahydro-l,4-oxazine) see Morpholine Tetrahydrothiophene... 

Moore and Massey [61] detailed a reaction in which 1,1,2,2-tetrafluoroethane was isomerized to 1,1,1,2-tetrafluoroethane over chromia catalyst at 400°C, indicating that fluorine shifts may be catalyzed. The same authors also indicated that AIF3 and NaF may also be used as catalyst. Similar work for TFE has not been reported, though it stands to reason that such a shift would be beneficial to the formation of HFP (See Scheme 5.7). 

Bis(fluorooxy)tetrafluoroethane, 0641 2-Chloro-1,1 -bis(fluorooxy)trifluoroethane, 0595 1, l,4,4-Tetrakis(fluoroxy)hexafluorobutane, 1374 See Fluorine Fluorocarboxylic acids, etc., 4310 See related HYPOHALITES... 

Tetrafluoroborate (1-) potassium. See Potassium fluoborate Tetrafluoroboric acid. See Fluoboric acid Tetrafluorodichloroethane 1,1,2,2-Tetrafluoro-1,2-dichloroethane. See 1,2-Dichlorotetrafluoroethane Tetrafluorodichloromethane. See Dichlorotetrafluoromethane Tetrafluoroethane... 

Much work has been done to develop catalyst systems that optimize yield and reduce side reactions. The reaction has an induction period, which depends on the temperature and the amount of catalyst.8 An early patent from Bayer claims that a nearly quantitative yield can be achieved in the conversion of l,2-dibromo-1-chloro-l.2.2-trifluoroethane(5) into 1,1-di-bromo-l-chloro-2,2.2-trifluoroethane (6) when aluminum tribromide is used in 2-broino-2-chloro-1,1,1-trifluoroethane (4) as solvent.12 A Japanese patent26 describes the activation of aluminum trichloride or alumina by pretreatinent with l,L2-trichloro-l,2,2-trifluoroethane (1) (see discussion of compound 19, vide infra). A later patent claims that aluminum trichloride and tribromide can also be activated by complexing with 1,1-dichloro- (CF3CFC12) and 1,1-dibromo-1,2,2,2-tetrafluoroethane (CF3CFBr2), respectively 2 an example of the latter is shown in the formation of bromofluoroalkane 10. 

PROPELLANT 14 (76-14-2) see 1,2-dichloro-1,1,2,2-tetrafluoroethane. PROPELLENT 22 (75-45-6) see chloro-difluoromethane. 

Ethanesulfonic acid, 2-amino-. See Taurine Ethanesulfonic acid, 2-(1-(difluoro-((trifluoroethenyl) oxy] methyl]-1,2,2,2-tetrafluoroethoxy]-1,1,2,2-tetrafluoro-, polymer with tetrafluoroethane CAS 31175-20-9... 

Freon 113. See Trichlorotrifluoroethane Freon 114. See 1,2-Dichlorotetrafluoroethane Freon 115. See Chloropentafluoroethane Freon 116. See Hexafluoroethane Freon 124. See 2-Chloro-1,1,1,2-tetrafluoroethane Freon 142 Freon 142b. See 1,1,1-Chlorodifluoroethane Freon R 1216. See Hexafluoropropylene Freon C-318. See Octafluorocyclobutane Freon FT. See 1,1,1-Trichloro-2,2,2-trifluoroethane... 

---