Thermal and Composition Expansion of Clathrates in the Ethylene Oxide—Water System
- 15 November 1967
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 47 (10) , 3850-3852
- https://doi.org/10.1063/1.1701545
Abstract
Nonstoichiometric clathrate compounds of ethylene oxide and water form cubic phases of composition xC2H4O·46H2O, where the theoretical maximum x is 8. Through x‐ray diffraction experiments, thermal expansion relations were established for several specific compositions (x = 1.08, 2.32, 3.72, 6.75) over the temperature range from −140° to −20°C. It was found that in each case, the relative thermal expansion of the clathrate was greater than that of normal ice over matching ranges. At any given temperature in the range studied, a sharp break was observed in the compositionexpansion curve at about x = 3, for which a reasonable explanation has been provided.Keywords
This publication has 5 references indexed in Scilit:
- Variable Composition of the Chlorine and Ethylene Oxide Clathrate HydratesThe Journal of Chemical Physics, 1966
- Polyhedral Clathrate Hydrates. IX. Structure of Ethylene Oxide HydrateThe Journal of Chemical Physics, 1965
- Results of the IUCr precision lattice-parameter projectActa Crystallographica, 1960
- Thermal expansion of iceActa Crystallographica, 1960
- Thermodynamic properties of gas hydratesMolecular Physics, 1958