
Apatite Leaching using H2SO4 Methanol
· The pure apatite crystals used in this study, as indied by XRD, are primarily of the fluorapatite form. The chemical reaction that takes place when fluorapatite is treated with H2SO4methanol is as follows : Ca5 (PO4)3F + 5H2SO4 + 5/2H2O → 3H3PO4 + 5 (CaSO4·½H2O) + HF