Item Tag: Nickel Oxide, Black

It is the principal oxide of nickel. [5] The mineralogical form of NiO, bunsenite, is very rare. “Paul Brown Studio Arts and Supplies”. All products are supplied as is from the manufacturer.

The common tetragonal hexahydrate crystallizes from aqueous solution between 30.7 and 53.8 °C. Below these temperatures, a heptahydrate crystallises, and above these temperatures an orthorhombic hexahydrate forms.