Nickel oxide has been referred to in the literature but is not a well characterised compound. The substance nickel oxide is sometimes described as being black nickel 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.Ni2O3 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.
Nickel Oxide Applications
• For making electrical ceramics such as thermistors and varistors e.g. ferrites (nickel zinc ferrite)
• Pigments for ceramic, glasses and glazes
• Nickel oxide can be reacted with acids to form salts and other compounds e.g. nickel sulfamate for electroplating and nickel molybdate for hydrodesulfurisation catalysts
• Gold doped nickel oxide films can be used as transparent electrodes in optoelectronic devices
We also provide nickelous oxide.