Vaporization of Compounds and Alloys at High Temperature. Part 2. Mass Spectrometric Studies of the Vaporization of Sulphides and the Dissociation Energy of S2

Abstract : The equilibria S2 reversible reaction 2S and CaS reversible reaction Ca + S have been observed in the vapor phase above CaS. Do(S2) = 4.4 + or - 0.2 e.v., Do (SO) = 5.4 + or - 0.2 e.v., Do (CaS) = 3.7 + or - 0.2 e.v., and H298(CaS) = 5.9 + or - 0.2 e.v. have been determined mass spectrometrically.