Tricalcium Phosphate
Bone Phosphate of Lime (BPL), a white odourless crystalline powder, which refers to the calcium salt of phosphoric acid. It is also known as tricalcium phosphate (TCP) or tribasic calcium phosphate. Tricalcium phosphate is Ca3 (PO4 )2 . The phosphate content of phosphorite may be expressed as percentage of bone phosphate of lime (BPL) or P2O5.