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Substance Name: C.I. Pigment Blue 72
RN: 68186-87-8


  • TSCA Definition 2018: An inorganic pigment that is the reaction product of high temperature calcination in which cobalt (II) oxide, zinc oxide, and aluminum oxide in varying amounts are homogeneously and ionically interdiffused to form a crystalline matrix of spinel. Its composition may include any one or a combination of the modifiers MgO, Li2O, TiO2. This substance is identified in the COLOUR INDEX by Colour Index Constitution Number, C.I. 77347.

Molecular Formula

  • Unspecified
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Names and Synonyms


  • Cobalt zinc aluminate Blue spinel
  • EC 269-049-5
  • EINECS 269-049-5

Systematic Names

  • C.I. Pigment Blue 72
  • Cobalt zinc aluminate Blue spinel

Registry Numbers

CAS Registry Number

  • 68186-87-8

System Generated Number

  • 0068186878