Synthesis of Hydroxyapatite in the Presence of Hydroxyethylidenediphosphonic Acid and Mg 2+ Ions As Crystallization Inhibitors

— We have synthesized hydroxyapatite (HA) in the presence of hydroxyethylidenediphosphonic acid and Mg 2+ ions and examined the influence of the nature and concentration of the crystallization inhibitors and the concentration of starting reagents on the physicochemical characteristics of HA. It has been shown that the crystal structure and texture of HA can be controlled by varying synthesis conditions in the presence of low concentrations (0.01–1.00 mol %) of crystallization inhibitors, which can be used in the fabrication of materials with improved performance for various functional applications.