Selective water sorbents for multiple applications .3. CaCl2 solution confined in micro- and mesoporous silica gels: Pore size effect on the ''solidification-melting'' diagram

被引：50

作者：

Aristov, YI ^{[1
]}

DiMarco, G ^{[1
]}

Tokarev, MM ^{[1
]}

Parmon, VN ^{[1
]}

机构：

[1] INST SPECTROSCOP TECH, MESSINA, ITALY

来源：

REACTION KINETICS AND CATALYSIS LETTERS | 1997年 / 61卷 / 01期

基金：

俄罗斯基础研究基金会;

关键词：

melting; CaCl2/H2O solution; pore size effect; phase diagram;

D O I：

10.1007/BF02477527

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：

In this communication we present a low-temperature ''solidification-melting'' phase diagram for CaCl2/H2O solutions confined in KSK and KSM silica gels. At salt concentrations of 0-48 wt.%, the diagram has been found to he below the diagram reported for the bulk system by 15-30 degrees C. It shows a depression of the solution melting point due to its confinement to the pores. Several other peculiarities of melting and solidification in this system are also reported and discussed. Beside fundamental interest, the data obtained could be of importance in many commercial areas such as refrigeration, accumulation of low temperature heat, frost prevention in building materials, etc.

引用

页码：147 / 154

页数：8

共 19 条

[1] Selective water sorbents for multiple applications .2. CaCl2 confined in micropores of silica gel: Sorption properties [J].