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Substance Name: Nepheline syenite, manganese zirconium brown
RN: 68187-64-4


  • TSCA Definition 2018: An inorganic pigment that is the reaction product of high temperature calcination in which manganese (II) carbonate, zirconium (IV) oxide and nepheline syenite react.

Molecular Formula

  • Unspecified

Classification Code

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Names and Synonyms


  • EINECS 269-115-3
  • Manganese zirconium aluminum silicate brown nepheline syenite

Systematic Name

  • Nepheline syenite, manganese zirconium brown

Registry Numbers

CAS Registry Number

  • 68187-64-4

System Generated Number

  • 0068187644