Chemical and Materials Engineering | Article | Published 2023

Studying the solublitiy of the system zinc sulfate-ammonium sulfate-water

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Collection: МАШИНАСОЗЛИК ИЛМИЙ-ТЕХНИКА ЖУРНАЛИ SCIENTIFIC AND TECHNICAL JOURNAL MACHINE BUILDING
Keywords: Ammonium sulfate, zinc sulfate, zinc - ammonium sulfate hexahydrate, visual polytherm, X-ray phase analysis, IR spectrum, thermogravimetric analysis.

Abstract

The visual-polythermal method was used to study the solubility of components in the ZnSO4 – (NH4)2SO4 – H2O system over the temperature interval of -22.0°С to +36.1°С. The phase description delineates the areas of ice crystallization, (NH4)2SO4, ZnSO4·(NH4)2SO4·6H2O, and ZnSO4. A solubility diagram was drawn and a new compound, ZnSO4·(NH4)2SO4·6H2O, was isolated. The new compound was identified by chemical, X-ray phase, thermogravimetric and IR spectroscopic analyses.

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