Dissolution Properties of Phosphate Glasses with Trace Elements

Phosphate glasses were prepared by melting quenching process, and glass formation and dissolution properties were studied. The glass forming region in the K2O-CaO-P2O5 system is quietly agreed with the report by Mazurin OV et al. with M2O-M'O-P2O5 system (M : monovalent cation, M'divalent cation). Conditionally these glasses have solubility from absorbing the moisture or water and then release elements with trace elements, and the thermal and chemical properties were controllable by the CaO, K2O, P2O5 contents. In the abnormal glass properties, this paper showed the possibility the present glasses can be a good candidate for one component of the slow released agriculture fertilizer.