Simple and Rapid Synthesis of Monocalcium Phosphate Monohydrate Ca (H2PO4)2•H2O (MCPM) by Corbicula spp. Shells
Warunthip Chatjutamanee ^*
Department of Chemistry, Faculty of Engineering, Rajamangala University of Technology Isan Khon Kaen Campus, Khon Kaen, Thailand.

Abstract

Monocalcium phosphate monohydrate Ca(H2PO4)2•H2O (MCPM) was successfully prepared by a simple and rapid, low-cost production and environmentally friendly using reaction with Corbicula spp. shells and phosphoric acid at ambient temperature for 25 min. The obtained powder was analyzed by X-ray powder diffraction (XRD) and ATR-FTIR spectroscopy. The XRD and ATR-FTIR results of sample were confirmed crystallized anorthic phase and shown fundamental vibrations H2PO4- ion and H2O molecule respactively. The chemical contents were found to be 15.78% Ca, 24.6% P and 24.20% H2O. These results confirm that the obtained powder is Ca(H2PO4)2•H2O.