Mass spectrometric study of the vaporization of tungsten oxotribromide

discord with the proposed existence of WOBr4and W02Br2 species reported from tensimetric work. Thus, a different de- composition scheme is suggested w...
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1422 Inorganic Chemistry,Vol. 12, No. 7, 1973

Suresh K. Gupta Contribution from the Lamp Phenomena Research laboratory, General Electric Company, Nela Park, Cleveland, Ohio 441 12

Mass Spectrometric Study of the Vaporization of Tungsten Oxotribromide SURESH K. GUPTA Received October 17, 1972

A Knudsen effusion mass spectrometric investigation indicates that in the temperature range, 410-690°K, solid WOBr, undergoes simultaneous evaporation and dissociation. Present results indicate that the system does not attain equilibrium in the Knudsen cell and the vaporizing species evaporation coefficients are