Nickel oxide

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Green crystalline powder that can turn yellowish with heat or time. Nickel oxide occurs in nature as the mineral bunsenite. It is used as a colorant for painting on Porcelain.

Synonyms and Related Terms

nickelous oxide; nickel monoxide; nickel protoxide; nickel (II) oxide; green nickel oxide


Toxic by inhalation and ingestion. Skin contact can cause allergies.

Suspected carcinogen.

ThermoFisher: SDS

Physical and Chemical Properties

Soluble in acids and ammonium hydroxide. Insoluble in water and alkalis.

Composition NiO
CAS 1313-99-1
Melting Point 1984
Density 6.6-6.8
Molecular Weight mol. wt. = 74.7

Resources and Citations

  • Michael McCann, Artist Beware, Watson-Guptill Publications, New York City, 1979
  • The Merck Index, Susan Budavari (ed.), Merck Research Labs, Whitehouse Station, NJ, 12th Edition, 1996 Comment: entry 6595
  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • Henry Hodges, Artifacts: An Introduction to Early Materials and Technology, Ronald P. Frye, Kingston, Canada, 1988