AM_K2Ni(H2P2O7)2_2H2O Formula: K2 Ni P4 O16 H8 Name: K2Ni(H2P2O7)2*2H2O Unit cell: 6.8554 7.3124 7.561 81.012 72.301 83.691 , V=355.87 Space group: P-1 (2)

Tahiri A A , Messouri I , Lachkar M , Zavalij P Y , Glaum R , El Bali B , Rachid O , Acta Crystallographica, Section E , 60 (2004) p.i3-i5, Dipotassium nickel(II) bis(dihydrogendiphosphate) dihydrate, K2Ni(H2P2O7)2*2H2O