J. Phys. IV France
Volume 123, March 2005
Page(s) 255 - 258

J. Phys. IV France 123 (2005) 255-258

DOI: 10.1051/jp4:2005123046

Effect of the temperature on the synthesis of dicalcium phosphate dihydrate

D. Dhiba1, A. Hakam1, H. El Khoukhi2, A. Albourine2 and A. Nounah3

1  Centre d'Études et de Recherches des Phosphates Minéraux (CERPHOS-OCP), 87 boulevard Moulay Ismaïl, Casablanca, Maroc
2  Laboratoire de Chimie Physique, Département de Chimie, BP. 28/S, Agadir, Maroc
3  Laboratoire des Sciences de l'Environnement, École Supérieure de Technologie, Av. Prince Héritier Sidi Mohammed, BP. 227, Salé Médina, Maroc

The use of calcium phosphates as biomaterials was largely developed during the last decades. Among the phosphorous compounds solid minerals of biological interest, the dicalcium phosphate dihydrate, (DCPD or brushite) (CaHPO4, 2H2O), disserves a special attention. It can be prepared in different ways. The manufacture of inorganic phosphate, it is usually produced by the acidulation of limestone form of calcium with phosphoric acid. The synthesis of this phosphate depends on many operational parameters. This study was performed in order to verify the influence of temperature and the time on the chemical purity and the yield of precipitation. All the samples were characterized by X-ray diffraction, infrared spectrometry and chemical analysis.

© EDP Sciences 2005