Black Nickel Oxide
Black Nickel Oxide (Ni2O3), often referred to as Nickel Oxide, is a powerful refractory colorant which can produce grey, blue, and yellow tints. It is more concentrated than nickel carbonate and as little as .02% gives a noticeable tint. It can also soften and mute more intense colorants such as copper and cobalt.
Due to its chemical reactivity and high surface area, high-purity black nickel oxide can be used to react with acids to form nickel salts which can then be converted into other nickel compounds such as nickel sulfamate for electroplating and nickel molybdate for hydrodesulfurization catalysts.
Uses for Black Nickel Oxide
Black Nickel Oxide has a multitude of uses:
- an electrolyte in nickel plating solutions
- in glass frit, ferrites, and porcelain glazes
- various “chemical” applications
- the production of alloys
- as a fuel cell component
- black NiO is the precursor to nickel salts, which arise by treatment with mineral acids and is a versatile hydrogenation catalyst.
Uses also include glass frits for porcelain enamel and to develop colors in clear glass