Nickel Oxide ( NiO ) - Properties and Applications


Nickel oxide ( NiO ) can be obtained as either a green or black crystalline powder.

Key Properties

Property Value
Density (g/cm3) 6.67
Melting Point (°C) 1984



Nickel oxide has a range of applications such as:

  • 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


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