Homogenous hydrothermal synthesis of calcium phosphate with calcium carbonate and corbicula shells

In this work, we prepared calcium phosphate by a general homogenous hydrothermal process, either from commercial calcium carbonate and phosphoric acid, or from corbicula shells and phosphoric acid. The chemical composition and properties of the resulting products were also investigated. Commercial calcium carbonate and corbicula shells reacted with phosphoric acid to produce calcium hydrogen phosphate and hydroxyapatite via a homogeneous hydrothermal process. The chemical composition of the products was influenced by both processing temperature as well as time. The compositions themselves influenced the substitution of calcium with iron and the absorption of trimethylamine gas.