Dibasic calcium hydrogen phosphate (CaHPO4 . 2H(2)O) and monobasic calcium phosphate (Ca(H2PO4)(2) . H2O) are usually mixed with calcium carbonate or phosphoric acid as the raw material to prepare calcium phosphate glass by melting. In this work, the dehydration mechanisms and the activation energies of dehydration of CaHPO4 . 2H(2)O and Ca(H2PO4)2 . H2O are investigated using nonisothermal TA technique and X-ray powder diffraction patterns.
