SOLUBILITY CRITERIA FOR THE EXISTENCE OF HYDROXYAPATITE

Abstract

The solubilities of synthetic basic calcium phosphate precipitates in carbon dioxide free aqueous systems were studied over a wide range of conditions. The pH of the suspensions and the calcium and phosphate concentrations in the solutions were determined both after precipitation and after dissolution of the solid phases. Solubility criteria applied to these measurements indicated that hydroxyapatite has a definite solubility product.