Study of the Isotopic Disproportionation Reaction between Light and Heavy Water Using a Pulsed-Molecular-Beam Mass Spectrometer

Study of the Isotopic Disproportionation Reaction between Light and Heavy Water Using a Pulsed-Molecular-Beam Mass Spectrometer

Isotopic exchange equilibrium in the disproportionation reaction H2O+D2O=2 HDO was studied at 0° and 25° and over a range of deuterium compositions using a pulsed-molecular-beam mass spectrometer. The equilibrium constant K was found to be 3.75±0.07 at both temperatures. The pulsed-beam mass spectro...

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Veröffentlicht in:The Journal of chemical physics 1967-03, Vol.46 (6), p.2253-2257
Hauptverfasser: Pyper, J. W., Newbury, R. S., Barton, G. W.
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container_issue 6
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container_title The Journal of chemical physics
container_volume 46
creator Pyper, J. W.
Newbury, R. S.
Barton, G. W.
description Isotopic exchange equilibrium in the disproportionation reaction H2O+D2O=2 HDO was studied at 0° and 25° and over a range of deuterium compositions using a pulsed-molecular-beam mass spectrometer. The equilibrium constant K was found to be 3.75±0.07 at both temperatures. The pulsed-beam mass spectrometer was shown to be effective in minimizing the ``memory effect'' in the mass spectrometer. The experimental K is shown to be consistent with equilibrium constants for similar isotopic disproportionation reactions and with current theory.
doi_str_mv 10.1063/1.1841029
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title Study of the Isotopic Disproportionation Reaction between Light and Heavy Water Using a Pulsed-Molecular-Beam Mass Spectrometer
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