The materials which used in this research made of eggshells in chemical form CaCO3 was calcinated by freeing CO2 with final result of calcination was CaO as calcium source, (NH4)2HPO4 as phosphate source, aquades (H2O)
The materials which used in this research made of eggshells in chemicalform CaCO3 was calcinated by freeing CO2 with final result of calcination wasCaO as calcium source, (NH4)2HPO4 as phosphate source, aquades (H2O)