Nickel(II) phosphate

Nickel(II) phosphate is an inorganic compound with the formula Ni3(PO4)2. It is a mint green paramagnetic solid that is insoluble in water.

Hydrated nickel(II) phosphate
The hydrate Ni3(PO4)2·8(H2O) is a light green solid, which can be prepared by hydrothermal synthesis and also occurs as the mineral arupite. It features octahedral Ni centers, which are bound to water and phosphate.