Name : Nickel Oxide
Nickel oxide has been referred to in the literature but is not a well characterised compound. The substance black nickel oxide is sometimes described as being Nickel(III) oxide Ni2O3 however the composition quoted by suppliers has a nickel content of around 77% by weight whereas Ni2O3 would have 70.98% Ni by weight, and may be non-stoichiometric NiO.Nickel Oxide Black dissolves in the sour and ammonia water, does not dissolve in water, heats and absorbs oxygen in the air and turns into three times and oxidizes two nickel at 400 degrees Centigrade.