ИСТИНА

Perfluoroorganic compounds (PFOC) are promising as components of aqueous emulsions artificial hemoconcealer, currently used in medical practice. In this work the temperature dependence of the saturation vapor pressure, ps, of perfluorooctylbromide, C8F17Br, was determined by comparative ebulliometry over the moderate “atmospheric” pressure range from 8.4 to 101.6 kPa. The experimental values (pT) were fitted by the semi-empirical equation, was derived by integration of the Clausius - Clapeyron equation. The standard vaporization enthalpies, ∆vapHо of PFOC were estimated by micro calorimeters Wadso and Calvet. A second-order group additive scheme has been applied using full-matrix, least-squares method to predict the vaporization enthalpies of PFOC.