PREPARATION PROCEDURE OF BARIUM HYDROXYAPATITE WITH SOL CONSISTING OF SODIUM ALGINATE AND SODIUM DIPHOSPHATE

Abstract

Barium hydroxyapatite (Ba₁₀(PO₄)₆(OH)₂; BaHAp) was successfully prepared with a sol obtained from the addition of sodium alginate ((C₅H₇O₄ · COONa)_n) to the aqueous mixture of sodium diphosphate (Na₄P₂O₇) and barium nitrate (Ba(NO₃)₂) although it has been already reported that calcium hydroxyapatite, typical hydroxyapatite, was prepared with a sol obtained from the addition of the corresponding nitrate to the aqueous mixture of sodium diphosphate and sodium alginate.