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Vaporization Of Compounds And Alloys At High Temperatures Part XXII. Mass Spectrometric Determination Of The Dissociation Energy Of The Molecules MgO, CaO, SrO and Sr2O

Report Number: WADD TR 60-782 Part XXII
Author: Drowart, John
Author: Verhaegen, G.
Author: Exsteen, G.
Corporate Author: Universite Libre de Bruxelles, Brussels, Belgium
Laboratory: Air Force Materials Laboratory
Date of Publication: 1964-04
Pages: 36
Contract: AF 61(052)-225
Project: 7350
Task: 735001
AD Number: AD0600442

The dissociation energy of the molecules MgO, CaO, SrO was determined. Do°(MgO)=85±5; Do°(CaO)=92±5; Do°(SrO)=102±5 kcal/mole.  The ground state was considered to be 1Σ. This choice is discussed. A review and discussion of the literature values for Do°(MgO, CaO, SrO) is made. The molecule Sr2O was identified and its atomization energy determined; ΔHo°, at(Sr2O)=193±6 kcal/mole.

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