Abstract

The solubility of the MgSO₄–Na₂SО₄–H₂O ternary system was determined in the temperature range from –5.2 to 116.5°C by the visual polythermal method. Based on binary systems and internal incisions of the components of the system under study, its polythermal diagram is constructed. The crystallization fields of ice, Na₂SО₄·10H₂O, Na₂SО₄, MgSO₄·12H₂O, MgSO₄·7H₂O, MgSO₄·6H₂O, MgSO₄·H₂O, 3Na₂SО₄·MgSO₄, Na₂SО₄·MgSO₄·2.5H₂O and Na₂SО₄·MgSO₄·4H₂O are delimited on the phase diagram of the MgSO₄–Na₂SО₄–H₂O system. The results of the study show that the system under study belongs to the complex–eutonic type and there is an interaction between its components.

中文翻译：

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MgSO4-Na2SО4-H2O 体系的多热溶解度

摘要

采用目视多热法测定了MgSO ₄ –Na ₂ SО ₄ –H _{2 O三元体系在–5.2至116.5°C温度范围内的溶解度。}基于二元系统和所研究系统组件的内部切口，构建了其多热图。冰结晶场、Na ₂ SО ₄ ·10H ₂ O、Na ₂ SО ₄、MgSO ₄ ·12H ₂ O、MgSO ₄ ·7H ₂ O、MgSO ₄ ·6H ₂ O、MgSO ₄ ·H ₂ O、3Na ₂SО ₄ ·MgSO ₄、Na ₂ SО ₄ ·MgSO ₄ ·2.5H ₂ O和Na ₂ SО ₄ ·MgSO ₄ ·4H _{2 O在MgSO 4} –Na ₂ SО ₄ –H ₂ O体系的相图上界定。研究结果表明，所研究的系统属于复杂-优调型系统，其组成部分之间存在相互作用。