: Nickel(II) oxide is the chemical compound with the formula NiO. The mineralogical form of NiO, bunsenite, is very rare.
: N 1504 (OTTO) Nickel oxide, <1 μm, 99.8% Cas 1313-99-1 - used in the preparation of nickel alloys including nickel steel alloys, manufacture of glass and porcelain paints.