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Substance Name: Periclase, cobalt blue gray
RN: 68512-31-2


  • TSCA Definition 2018: An inorganic pigment that is the reaction product of high temperature calcination in which cobalt (II) oxide forms a crystalline matrix. Its composition may include any one or a combination of the modifiers ZrO2 or SiO2.

Molecular Formula

  • Unspecified

Classification Code

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Links to Resources

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Names and Synonyms


  • Cobalt blue gray periclase
  • EINECS 270-967-3

Systematic Name

  • Periclase, cobalt blue gray

Registry Numbers

CAS Registry Number

  • 68512-31-2

System Generated Number

  • 0068512312