Synthesis of pure monetite by heterogeneous acid-base reaction

Five variations of the monetite (M) synthesis were evaluated modifying the stirring, the phosphoric acid addition rate, the homogeneity and the drying temperature. Products were assessed by means of XRD, FTIR, SEM-EDS analysis and chemical assay of Ca/P (calcium by titration with potassium permangan...

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Bibliographic Details
Published in:Revista colombiana de química 2017-01, Vol.46 (1), p.60-68
Main Authors: Luis Carlos Moreno Aldana, Davier Olarte Cárdenas, Edgar Delgado Mejía
Format: Article
Language:eng ; spa
Subjects:
brushita
DCPA
DCPD
fosfatos de calcio
hidroxiapatita
monetita
síntesis de fosfatos
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Summary:Five variations of the monetite (M) synthesis were evaluated modifying the stirring, the phosphoric acid addition rate, the homogeneity and the drying temperature. Products were assessed by means of XRD, FTIR, SEM-EDS analysis and chemical assay of Ca/P (calcium by titration with potassium permanganate and phosphorus by colorimetric assessment of the molybdenum blue complex). X-ray diffraction, infrared spectroscopy and Ca/P ratio indicate that the synthesized phosphate corresponds to pure monetite. It was found that the most influential factors affecting composition, crystal size and Ca/P were stoichiometry and ballmilling mechanoactivation.
ISSN:0120-2804
2357-3791
DOI:10.15446/rev.colomb.quim.v46n1.59760