DiCalcium-Phosphate

http://en.wikipedia.org/wiki/Dicalcium_phosphate
 * Dicalcium phosphate **, also known as calcium monohydrogen phosphate, is a [|dibasic] [|calcium phosphate] . It is usually found as the dihydrate, with the chemical formula of CaHPO 4 • 2H 2 O, but it can be thermally converted to the anhydrous form. It is practically [|insoluble] in water, with a [|solubility] of 0.02 g per 100 mL at 25 °C. It contains about 29.5 percent calcium in its anhydrous form.