Phase Equilibria in Water-Salt Systems Containing Sodium and Calcium Chlorides and Urea at Temperatures below 0°C

被引：0

作者：

Frolova, E. A. ^{[1
]}

Kondakov, D. F. ^{[1
]}

Danilov, V. P. ^{[1
]}

机构：

[1] Russian Acad Sci, Kurnakov Inst Gen & Inorgan Chem, Moscow 119991, Russia

来源：

THEORETICAL FOUNDATIONS OF CHEMICAL ENGINEERING | 2023年 / 57卷 / 05期

关键词：

deicing properties; eutectic; deicing ability; deicing agents;

D O I：

10.1134/S0040579523050081

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Phase equilibria are studied in sections of the systems NaCl-CO(NH2)(2)-H2O, CaCl2-CO(NH2)(2)-H2O, and NaCl-CaCl2-CO(NH2)(2)-H2O at temperatures from 0 to -57 degrees C. The features of the mutual influence of the components on the temperatures of the eutectics in the systems and on the deicing ability of urea-salt mixtures are determined. It is found that the introduction of urea into the systems CaCl2-H2O and NaCl-CaCl2-H2O gives rise to low-temperature eutectics with crystallization temperatures of -54 and -57 degrees C, which are promising for the development of low-temperature deicing agents on their basis.

引用

页码：997 / 1001

页数：5

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