Mass-Spectrometric Study of the Vaporization of Cobalt Oxide

Abstract

A mass-spectrometric investigation of the vapor species in equilibrium with the Co–O system has shown the vapor phase to consist of Co, O2, and small amounts of CoO. The dissociation energy, D0°, of CoO(g) was found to be 86.4 kcal/mole and the heat of sublimation of CoO(s), ΔH0°sub, is 130.3 kcal/mole.