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Abstract <p>The eutonic points of the magnesium chlorate–water and thiourea–water binary systems were determined. Based on these data and on six internal polythermal sections of the Mg(ClO<sub>3</sub>)<sub>2</sub>–CS(NH<sub>2</sub>)<sub>2</sub>–H<sub>2</sub>O system, a polythermal phase diagram was constructed for the temperature range from –52.8 to 10.0°C. The diagram reveals the crystallization fields of ice, thiourea, and the magnesium chlorate crystal hydrates Mg(ClO<sub>3</sub>)<sub>2</sub>·6H<sub>2</sub>O, Mg(ClO<sub>3</sub>)<sub>2</sub>·12H<sub>22</sub>O, and Mg(ClO<sub>3</sub>)<sub>2</sub>·16H<sub>2</sub>O. Furthermore, for the internal section [45%[36%Mg(ClO<sub>3</sub>)<sub>2</sub> + 9%MgCl<sub>2</sub>] + 55%H<sub>2</sub>O]–CS(NH<sub>2</sub>)<sub>2</sub>, the solution crystallization temperature, viscosity, density, pH, and refractive index were studied as functions of composition. A “composition–property” diagram was plotted based on the results.</p>

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Solubility of Components in the Magnesium Chlorate–Thiourea–Water System

  • 期刊论文

  • 发表日期：

    2025年12月1日

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  • S. A. Tuychiev,
  • A. S. Togasharov,
  • O. O. Rakhmanov,
  • B. B. Normakhmatov,
  • M. A. Mamirzayev

摘要

Abstract

The eutonic points of the magnesium chlorate–water and thiourea–water binary systems were determined. Based on these data and on six internal polythermal sections of the Mg(ClO3)2–CS(NH2)2–H2O system, a polythermal phase diagram was constructed for the temperature range from –52.8 to 10.0°C. The diagram reveals the crystallization fields of ice, thiourea, and the magnesium chlorate crystal hydrates Mg(ClO3)2·6H2O, Mg(ClO3)2·12H22O, and Mg(ClO3)2·16H2O. Furthermore, for the internal section [45%[36%Mg(ClO3)2 + 9%MgCl2] + 55%H2O]–CS(NH2)2, the solution crystallization temperature, viscosity, density, pH, and refractive index were studied as functions of composition. A “composition–property” diagram was plotted based on the results.