The Journal of Pure and Applied Chemistry Research
Vol. 14 No. 3 (2025): Edition September-December 2025

Structural and Morphological Study of Magnesium Phosphate from Bittern by pH Treatment and Addition of Sodium Phosphate

Dyah Suci, Perwitasari (Unknown)
Evlyansa Bunga Rizka Ananda (Unknown)
Dodik Hendra Saputra (Unknown)
Nur Aini Fauziyah (Unknown)



Article Info

Publish Date
30 Nov 2025

Abstract

This study focuses on the study of the structure and morphology of magnesium phosphate produced through the separation process of magnesium minerals from bittern waste through the precipitation method. This process involves the precipitation of magnesium phosphate (Mg₃(PO₄)₂) by varying the pH of the solution to 8.0, 8.5, 9.0, 9.5, and 10.0, and by adding Na₃PO₄ with varying concentrations of 5, 10, 15, 20, and 25 %. This chemical reaction produces magnesium phosphate precipitates were analyzed to determine their structural and morphological characteristics. The results showed that pH 9 and Na₃PO₄ concentration of 15 % are the optimal conditions for producing magnesium phosphate with the highest yield (25.1 %). Structural and morphological analysis show that magnesium phosphate exhibits an elongated shape with non-uniform size distribution, while the NaCl residue formed as a by-product had a typical cubic morphology. The presence of NaCl residue corresponds to the expected reaction mechanism, therefore, additional purification steps were needed to increase the purity of the final product. Overall, the results of this study indicate the potential for utilizing bittern as an alternative raw material for the synthesis of value-added magnesium phosphate, particularly for agriculture or industrial applications.

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Journal Info

Abbrev

jpacr

Publisher

Subject

Chemical Engineering, Chemistry & Bioengineering Chemistry Materials Science & Nanotechnology Medicine & Pharmacology

Description

The Journal of Pure and Applied Chemistry Research focuses in publishing research articles in the field of Chemistry and Applied Chemistry. The target is in exploring, investigating, and developing chemicals sources from local and/or Indonesian to increase the value. Scope of the journal is organic ...