Synthesis and a physicochemical study of glycine-containing calcium hydroxylapatite

Authors
Rodicheva, GV Orlovskii, VP Romanova, NM
Citation
Gv. Rodicheva et al., Synthesis and a physicochemical study of glycine-containing calcium hydroxylapatite, RUSS J IN C, 45(4), 2000, pp. 577-579
Citations number
7
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
RUSSIAN JOURNAL OF INORGANIC CHEMISTRY
ISSN journal
00360236 → ACNP
Volume
45
Issue
4
Year of publication
2000
Pages
577 - 579
Database
ISI
SICI code
0036-0236(200004)45:4<577:SAAPSO>2.0.ZU;2-C
Abstract
The system CaCl2-(NH4)(2)HPO4-NH3-H2O-NH2CH2COOH was studied at 25 degrees C by the solubility (residual concentrations) and pH measurement methods. T he conditions leading to the precipitation of glycine-containing calcium hy droxylapatite (glycinehydroxylapatite) were found. It is shown that the ani onic form of glycine NH2CH2COO- isomorphically substitutes for part of the OH- ions in the Ca channels of the hydroxylapatite lattice to form glycinea patite Ca-10(PO4)(6)(OH)(2-x)(NH2CH2COO)(x). The x values grow from 0.07 to 0.4 with increasing glycine concentration of the starting solutions.