Phase equilibria in water-salt systems from sodium, magnesium, and calcium nitrates and deicing properties of nitrate compositions

被引:7
|
作者
Frolova, E. A. [1 ]
Kondakov, D. F. [1 ]
Avdyushkina, L. I. [2 ]
Bykov, A. V. [3 ]
Shkarupin, A. N. [3 ]
Danilov, V. P. [1 ]
机构
[1] Russian Acad Sci, Kurnakov Inst Gen & Inorgan Chem, Moscow, Russia
[2] All Russian Inst Aviat Mat, Moscow, Russia
[3] Test Lab OOO RSTs Opytnoe, Moscow, Russia
关键词
phase equilibria; deicing properties; water-salt systems; nitrate compositions;
D O I
10.1134/S0040579517040066
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Phase equilibria have been studied in the sections of Mg(NO3)(2)-NaNO3-H2O and Ca(NO3)(2)-NaNO3-H2O systems at the ratio of salt components from 3: 1 to 1: 3 at temperatures of 0 to-35A degrees C. A series of nitrate compositions has been determined, which are promising as deicing agents. Their theoretical (under equilibrium conditions) fusion ability with respect to ice at-5 to-10A degrees C has been calculated. The corrosion activity of the composition of calcium and magnesium nitrates (1: 1) with respect to cement concrete (in collaboration with the test laboratory of OOO RSTs Opytnoe) has been measured. It has been found that the reagent meets criteria according to the action on cement concrete and can be used in aerodromes. This composition has been chosen as original for the development of a solid granular deicing agent on its basis for aerodromes.
引用
收藏
页码:523 / 526
页数:4
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