INFLUENCE OF ALKALINE EARTH CHLORIDES ON STRUCTURE OF WATER

被引：34

作者：

GREYSON, J

SNELL, H

机构：

[1] North American Rockwell Corporation, Canoga Park

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1969年 / 73卷 / 10期

关键词：

D O I：

10.1021/j100844a007

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：

Entropies of transfer between heavy and normal water for MgCl2, CaCl2, SrCl2, and BaCl2 have been determined from combination of free energies of transfer obtained from cell measurements with heats of transfer obtained from calorimetric measurements. The free energy and heat values indicated a spontaneous and exothermic transfer of the salts from D2O to H2O. Solvent-structure influence, established from the sign and magnitude of the entropy, indicated that the alkaline earth chlorides behave as structure-breaking salts. The order of structure-breaking influence for the cations was found to be Ba2+ > Sr2+ > Ca2+ > Mg2+ with Mg2+ behaving as a structure maker. The structure influence of the cations has been attributed to their long-range interaction with the bulk solvent.

引用

页码：3208 / &

共 18 条

[1]

ARNETT EM, IN PRESS

[2] THE DIELECTRIC PROPERTIES OF WATER AND HEAVY WATER [J].