Accession Number : AD0646757

Title :   THE VAPOR PRESSURE OF TETRAFLUOROMETHANE FROM 86-146K.

Descriptive Note : Technical rept.,

Corporate Author : CALIFORNIA UNIV LOS ANGELES DEPT OF CHEMISTRY

Personal Author(s) : Simon,M. ; Knobler,C. M. ; Duncan,A. G.

Report Date : 30 DEC 1966

Pagination or Media Count : 14

Abstract : The vapor pressure of CF, has been measured from 86-146K. The equation log p(torr) = 8.5019 - 769.89/T represents the data for the solid. Above the triple point, 89.55K, the vapor pressure is represented by the equation, log p(torr) = 6.836841 - 511.69474/(T - 15.7744). The heat of vaporization calculated by the Clapeyron equation from the data ranges from 3.4 to 2.8 kcal/mole from the triple point to the normal boiling point, 145.12K. (Author)

Descriptors :   (*HALOGENATED HYDROCARBONS, VAPOR PRESSURE), CRYOGENICS, LOW TEMPERATURE, HEAT OF VAPORIZATION, HEAT OF SUBLIMATION

Subject Categories : Physical Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE