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Vaporization Of Compounds And Alloys At High Temperatures Part XXIV. Mass Spectrometric Determination Of The Stability of Gaseous Molybdates, Tungstates, Molybdites and Tungstites of Magnesium, Calcium, Strontium and Tin

Report Number: WADD TR 60-782 Part XXIV
Author: Verhaegen, G.
Author: Drowart, J.
Author: Colin, R.
Corporate Author: Universite Libre de Bruxelles, Brussels, Belgium
Laboratory: Air Force Materials Laboratory
Date of Publication: 1964-09
Pages: 17
Contract: AF 61(052)-225
Project: 7350
Task: 735001
AD Number: AD0607780

A number of ternary oxides have been identified in the gas phase by mass spectrometry, while vaporizing MgO, CaO, SrO and SnO2 + Sn from Mo and W crucibles. The approximate stabilities of the gaseous molecules MgMoO4, CaMoO4, SrMoO4, MgWO4, CaWO4, SrWO4, SrMoO3, CaWO3, CaMoO3, SnWO4 and Sn2WO5 were deduced from the measurements. The dissociation energies (kcal/mole) into gaseous oxides are presented.

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