Tricalcium Phosphate, is an inorganic compound, chemical formula Ca3(PO4)2, for the white crystal or amorphous powder, slightly soluble in water, easily soluble in dilute hydrochloric acid and nitric acid, insoluble in ethanol, acetone and ether, commonly used as anti-coagulation agent, acidity regulator, nutrient supplement (calcium), flavor enhancer, stabilizer, moisture retention agent, medicine used as acid.