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Substance Name: Spinels, aluminum silicon zirconium white
RN: 68555-04-4


  • TSCA Definition 2018: An inorganic pigment that is the reaction product of high temperature calcination in which aluminum oxide, silicon oxide, zirconium 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 CaO, K2O, or Na2O.

Molecular Formula

  • Unspecified

Classification Code

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Names and Synonyms


  • EINECS 271-409-1
  • Zirconium aluminum silicate spinel

Systematic Name

  • Spinels, aluminum silicon zirconium white

Registry Numbers

CAS Registry Number

  • 68555-04-4

System Generated Number

  • 0068555044