Accession Number : AD0699249

Title :   VAPOR PHASE CALORIMETRY.

Descriptive Note : Final rept. 1 Feb 65-31 Aug 69,

Corporate Author : COLORADO UNIV BOULDER

Personal Author(s) : Lacher,John R. ; Park,Joseph D.

Report Date : NOV 1969

Pagination or Media Count : 52

Abstract : Using a palladium on charcoal catalyst, the hydrogenation reactions of CF3CH2Cl, CF3CHCl2, n-C4H9Cl, and sec-C4H9Cl proceeded quantitatively at 250C and are suitable for calorimetric study. The hydrogenation of CH2 = CHF, CH2 = CF2, CHF = CF2, and CF2 = CF2 proceeded quantitatively at 120C and the heats of reaction were measured at this temperature. The hydrogenation of these fluoro-olefines at 250C produced considerable amounts of HF which, at this temperature, was very corrosive to the tantalum reaction chamber. (Author)

Descriptors :   (*HALOGENATED HYDROCARBONS, *CALORIMETRY), (*ALKENES, HYDROGENATION), (*HYDROGENATION, HALOGENATED HYDROCARBONS), FLUORINE COMPOUNDS, CHLORINE COMPOUNDS, HEAT OF REACTION, CATALYSTS, TANTALUM

Subject Categories : Physical Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE