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The Analysis of the Solubility of Hydrocarbons in Water

Authors :
K\={o}z\={o} Shinoda
Masamichi Fujihira
Source :
Bulletin of the Chemical Society of Japan. 41:2612-2615
Publication Year :
1968
Publisher :
The Chemical Society of Japan, 1968.

Abstract

Enthalpy and entropy of solution of non-polar solutes in water diverge strikingly from the normal behavior established for regular solutions. This abnormality has been considered mostly due to the iceberg formation around solute molecules in water. The abnormal solubility and enthalpy and entropy of solution of non-polar solutes in water have been explained coherently by the extension of the regular solution theory, taking into account the iceberg formation of water molecules. Unlike currently accepted views on the hydrophobic bonding, it is concluded that the enthalpy of mixing (interchange) of non-polar solute with water is large, but the enthalpy decrease due to the iceberg formation of water largely cancels the enthalpy increase of mixing (interchange). Thus, the apparent enthalpy of solution is small or negative at low temperature. It is concluded that 1) the small solubility of non-polar solutes in, water is not an entropy effect, and 2) the solubility of non-polar solutes is promoted by the iceberg...

Details

ISSN :
13480634 and 00092673
Volume :
41
Database :
OpenAIRE
Journal :
Bulletin of the Chemical Society of Japan
Accession number :
edsair.doi...........ae9aa2663d123b3b853d7298e81440dd
Full Text :
https://doi.org/10.1246/bcsj.41.2612