Phosphoric Acid → Tricalcium Phosphate

Participants

Reaction Steps

10% phosphoric acid was added dropwise to a 20% aqueous slurry of calcium carbonate (Super #2000, manufactured by Maruo Calcium Company Limited) at a Ca/P mole ratio=3.33 under stirring aid, thereafter, this was stirred at 50° C. for 3 hours to obtain a white slurry. The white slurry was dehydrated using a filter press to obtain calcium phosphate I. It was confirmed by X-ray diffraction that the resulting white cake is a mixture of hydroxyapatite and calcite type calcium carbonate.

Provenance & Evidence