Abstract
IT may be of interest to record that preliminary measurements of the refractive index of a specimen of gaseous heavy water give a value of = 1.000256 for = 5462.23. The specimen, which was supplied by I.C.I., had a relative density of 1.0324 at 23.3° C., and a concentration estimated at 30 per cent D2O on the assumption that the density of pure D2O is 1.10791. The standard density of the vapour was taken as that of hydrogen at 0° and 76 cm., multiplied, as to 70 per cent, by 9 and as to 30 per cent by 10 ; thus:
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References
H. Taylor and P. W. Selwood, J. Amer. Chem. Soc., 998 ; 1934.
C. and M. Cuthbertson, Phil. Trans., 213 1.
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CUTHBERTSON, C. Refractive Index of Gaseous “Heavy Water". Nature 134, 251 (1934). https://doi.org/10.1038/134251a0
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DOI: https://doi.org/10.1038/134251a0
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