Vapor Pressure and Critical Data for Uranium

An earlier proposed method for the estimation of critical data of metals with extrapolated vapor pressure curves does not work with uranium. This strongly indicates the problems of such high-temperature extrapolations with the available vapor pressure data. Thus, various similarity relations for the critical data have been discussed. As most reliable values the critical temperature = 9 000 K and pressure = 5000 bar have been chosen. With these values a two-term vapor pressure equation has been constructed.