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J Am Chem Soc. 2006 Jan 18;128(2):414-5.

Direct measure of the hydration number of aqueous methane.

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  • 1Center for Research on Hydrates, Department of Chemical Engineering, Colorado School of Mines, Golden, 80401, USA. scdec@mines.edu

Abstract

A hydration number of 20 has been measured for aqueous CH4 in the temperature range 273-298 K on the basis of the simultaneous observation of the 13C isotropic resonance lines of CH4 in both aqueous solution and the dodecahedral cage of CH4 structure I hydrate. Additional experimental evidence and analysis reported in this paper suggest that the dominant aqueous hydration number of methane is 20.

PMID:
16402820
[PubMed]
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