Zn(OH)2 + 4KOH -> K4[Zn(OH)4]
K4[Zn(OH)4] -> Zn3(PO4)2 + 4KOH
Zn3(PO4)2 + 3H2O -> Zn3HPO4(OH)3 + 3H3PO4
Zn3HPO4(OH)3 + 3H2O -> Zn(PO3OH) + 3H3PO4
Zn(OH)2 + 4KOH -> K4[Zn(OH)4]
K4[Zn(OH)4] -> Zn3(PO4)2 + 4KOH
Zn3(PO4)2 + 3H2O -> Zn3HPO4(OH)3 + 3H3PO4
Zn3HPO4(OH)3 + 3H2O -> Zn(PO3OH) + 3H3PO4