Solid state synthesis of calcium borohydroxyapatite
2011; Elsevier BV; Volume: 13; Issue: 11 Linguagem: Inglês
10.1016/j.solidstatesciences.2011.08.016
ISSN1873-3085
AutoresHalil Güler, G. Gündoğmaz, F. Kurtuluş, G. Çelik, Şengül Sarıkaya Gacanoğlu,
Tópico(s)Chemical Synthesis and Characterization
ResumoCalcium borohydroxyapatite was synthesized by the solid-state reaction of colemanite (Ca2B6O11·5H2O) and diamonium hydrogenphosphate ((NH4)2HPO4) at 1200 °C for 12 h. X-ray diffraction pattern showed only the formation of calcium borohydroxyapatite. The experimental analysis assigned the chemical formula as Ca10[(PO4)5.80(BO3)0.20](OH)2. It was indexed in the hexagonal system with the refined unit cell parameters of a = 9.557(3) Å, c = 6.926(8) Å and space group P63/m. The experimental results verified that if colemanite was used as a primary reactant for both calcium and boron source, the calcium borohydroxyapatite could be obtained.
Referência(s)