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N. D. Sergeyeva, V. N. Torocheshnikov, N. M. Sergeyev

Low Proton Exchange in Water and in the Gas Phase


For studying proton exchange in water the technique of quantitative measurements of water has been developed applicable for very low concentrations of water in solutions or at low vapour pressure in a gas phase (for the maintenance of water at the level of water of 110 mkg in 1 ml). In these conditions it is possible to slow down the rate of proton exchange essentially. In particular, for mixtures of vapours of H2O and D2O in the gas phase at low pressure the life times of protons during exchange had the values of the order of 1030 minutes. The life times were measured using gradual growth of intensity of the signal of the mixed isotopomer HDO.
Moscow University Chemistry Bulletin.
2010, Vol. 51, No. 2, P. 123

Copyright (C) Chemistry Dept., Moscow State University, 2002
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