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Reference substances

Reference substances

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IUPAC name:
zinc iron chromite brown spinel

Inventory

EC number:
269-050-0
EC name:
Zinc iron chromite brown spinel
CAS number:
68186-88-9
Description:
This substance is identified in the Colour Index by Colour Index Constitution Number, C.I. 77503.
CAS number:
68186-88-9
Synonyms
Names:
Identifier:
IUPAC name
Zinc iron chrome spinel
Identifier:
IUPAC name
zinc iron chromite brown spinel
Identifier:
Colour Index
Colour Index™ Constitution Number: C.I. 77503 Colour Index™ Generic Name: C.I. Pigment brown 33
Identifier:
other: Molecular formula
(Zn,Fe)(Fe,Cr)2O4
Identifier:
other: Molecular formula
ZnxFeyCrzO4 (0.4≤x≤0.6, 1.4≤y≤1.6, 0.9≤z≤1.1)
zinc iron chromite brown spinel

Molecular and structural information

Molecular formula:
(Zn,Fe)(Fe,Cr)2O4
Molecular weight:
ca. 228.4
Structural formula:
Chemical structure

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