Phase relationships in the Zn2P2O7-K2ZnP2O7 System of the concentration tet
rahedron Zn2P2O7-Li 2ZnP2O7-Na2ZnP2O7-K2ZnP2O7 were studied. Phase diagrams
of the systems Zn2P2O7-Li2ZnP2O7 and Zn2P2O7-Na2ZnP2O7 are compared with t
hat of the system studied.