CLATHRATE HYDRATES OF CYCLOPROPANE

被引：60

作者：

HAFEMANN, DR

MILLER, SL

机构：

[1] Department of Chemistry, University of California, San Diego, San Diego

[2] Department of Physiology, University of California, Los Angles

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1969年 / 73卷 / 05期

关键词：

D O I：

10.1021/j100725a037

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Two stable clathrate hydrates of cyclopropane have been demonstrated by measuring the dissociation pressures of these hydrates vs. temperature. The hydrate stable below -16.01° and between 1.46 and 16.21° has the formula C3H6·8.0H2O and is the structure I, 12-Å cubic hydrate. This identification was confirmed by the X-ray powder pattern. The hydrate stable between -16.01 and 1.46° has the formula C3H6·17.0H2O and is the structure II, 17-Å cubic hydrate. These hydrate formulas were confirmed by measuring the dissociation pressure at 0° as a function of water activity. The thermochemical constants of the two hydrates have been determined. The vapor pressure of cyclopropane has been measured between 4 and 20°. The solubility of cyclopropane in water has been measured between O and 23°. The solubility of cyclopropane is discussed in terms of the gas being surrounded by icebergs containing the cavities that occur in the hydrates. The iceberg sizes are calculated on the basis of this model.

引用

页码：1392 / &

共 32 条

[1] ON STRUCTURE OF BROMINE HYDRATE [J].