2P+3Ca=Ca3P2
Ca3P2+6H2O=3Ca(OH)2+2PH3
2PH3+4O2=P2O5+3H2O
P2O5+6KOH=2K3PO4+3H2O
2K3PO4+3CaCl2=Ca3(PO4)2+6KCl
Ca3(PO4)2+4H3PO4=3Ca(H2PO4)2
2P+3Ca=Ca3P2
Ca3P2+6H2O=3Ca(OH)2+2PH3
2PH3+4O2=P2O5+3H2O
P2O5+6KOH=2K3PO4+3H2O
2K3PO4+3CaCl2=Ca3(PO4)2+6KCl
Ca3(PO4)2+4H3PO4=3Ca(H2PO4)2