1615-75-4Relevant articles and documents
Cadman et al.
, (1976)
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Christe,K.O.,Pavlath,A.E.
, p. 1639 - 1643 (1965)
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PURIFICATION METHOD, PRODUCTION PROCESS, AND USE OF, 1, 1-DIFLUOROETHANE
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Page/Page column 16-17, (2008/06/13)
Crude 1,1-difluoroethane containing at least one compound selected from the group consisting of unsaturated compounds each having two carbon atoms within the molecule and saturated chlorine-containing compounds each having two carbon atoms within the molecule is brought into contact with a zeolite and/or a carbonaceous adsorbent, or crude 1,1-difluoroethane containing hydrogen fluoride and, as impurities, at least one compound selected from the group consisting of unsaturated compounds each having two carbon atoms within the molecule is brought into contact with a fluorination catalyst in a gas phase state. High-purity 1,1-difluoroethane usable as a cryogenic refrigerant, or as an etching gas, can be produced in an industrially advantageous manner.
Production of organic fluorine compounds
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, (2008/06/13)
A process is disclosed for hydrofluorinating an olefinic hydrocarbon of the formula where X, X' and X" are the same or different and are hydrogen or halo and R' is hydrogen or C1 -C6 alkyl, with hydrogen fluoride. The process is carried out by admixing the olefinic hydrocarbon with hydrogen fluoride in an imidofluoride hydrogen fluoride solvent having the formula where R is C1 to C6 alkyl, C1 to C6 alkyl substituted with halo or C6 to C10 aryl either unsubstituted or substituted with alkyl and η is 0 or an integer that is at least 1.