Abstract
In a recent article, Kiyosawa [J. Solution Chem. 33, 323 (2004)] reports that the freezing points of isotopic mixtures of ordinary water and 17O enriched water show an unexpectedly large linear dependence on the concentration of H217O. Surprisingly, the constant of proportionality to the H217O concentration is nearly five times larger than that of H218O found in earlier studies by Kiyosawa [J. Solution Chem. 20, 583 (1991)]. We show that the H217O result is not consistent with other data or models. For example, a recent determination of the triple point temperature dependence on isotopic composition in naturally and artificially depleted waters [White et al. in Temperature, Its Measurement and Control in Science and Industry, Vol. 7, D. C. Ripple, Ed., AIP CP 684, 221–226 (2003)] is consistent with the H218O and D2O results from Kiyosawa (1991) [White and Tew in Report of the 22nd Meeting of the Consultative Committee for Thermometry, Document CCT/03-21, BIPM, Severes, France, 2003] but is inconsistent with the H217O results from Kiyosawa (2004). Additionally, the results from Kiyosawa (1991) are close to what would be found in ideal solutions for those isotopic forms, whereas the H217O proportionality from Kiyosawa (2004) is about 10 times larger than similarly predicted. One possible explanation is that the original 17O enriched water sample contained a small amount of D2O, and the sample, if available, should be subject to isotopic analysis to help resolve these inconsistencies.
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K. Kiyosawa, J. Solution Chem. 20, 583 (1991).
K. Kiyosawa, J. Solution Chem. 33, 323 (2004).
R. Gonfiantini, Nature 271, 534 (1978).
W. Li, D. Jin, and T. L. Chang, Kexue Tinbao 33, 1610 (1988).
P. Baertschi, Earth Plan. Sci. Lett. 31, 341 (1976).
D. R. White, T. D. Dransfield, G. F. Strouse, W. L. Tew, R. L. Rusby, and J. Gray, in Temperature, Its Measurement and Control in Science and Industry, Vol. 7, D. C. Ripple, Ed., AIP CP 684, 221–226, (2003).
Y. Nagano, Y. Miyazaki, T. Matsuo, and H. Suga, J. Phys. Chem. 97, 6897 (1993).
F. Steckel and S. Szapiro, Trans. Faraday Soc. 59, 331 (1963).
W. A. Van Hook, J. Phys. Chem. 72, 1234 (1968).
G. Jancso and W. A. Van Hook, Chem. Rev. 74, 689 (1974).
G. Jancso, L. P. N. Rebelo, and W. A. VanHook, Chem. Rev. 93, 2645 (1993).
H. Seltz, J. Am. Chem. Soc. 56, 307 (1934).
S. Szapiro and F. Steckel, Trans. Faraday Soc. 63, 883 (1967).
A. Hopfner, Angew. Chem. Int. Ed. 8, 689 (1969).
J. J. Bigeleisen, Chem. Phys. 34, 1485 (1961).
D. R. White and W. L. Tew, in Report of the 22nd Meeting of the Consultative Committee for Thermometry, Document CCT/03-21, BIPM, Severes, France (2003).
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Tew, W.L., White, D.R. Comment on “Freezing Point Mixtures of H216O with H217O and Those of Aqueous CD3CH2OH and CH313CH2OH Solutions”. J Solution Chem 34, 1191–1196 (2005). https://doi.org/10.1007/s10953-005-7696-7
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DOI: https://doi.org/10.1007/s10953-005-7696-7