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Inorganic Pigments Consortium

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Zirconium praseodymium yellow zircon


Substance description

EINECS No: 269-075-7

CAS N0.: 68187-15-5

EINECS Description: An inorganic pigment tha is the reaction product of high temperature calcination in which praseodymium (III) oxide, praseodymium (IV) oxide, silicon oxide, and zirconium (IV) oxide in varying amounts are homogeneously and ionically interdiffused to Form a crystalline matrix of zircon. Its composition may include any one or a combination of the modifiers alkali or alkaline earth halides.

Colour Index Description: Zirconium Praeseodymium Yellow Zircon is produced by high temperature calcination of a mixture of oxides of zirconium, silicon and praeseodymium in varying amounts to Form a crystalline matrix of zircon. Its composition may include not more than 5% of one or a combination of alkali and/or alkaline earth halides as modifiers.

Generic formula: (Zr,Pr)SiO4

Lead Registrant: ITACA

Expected registration: 2010

List of identified uses

• Ceramics
• Plastics

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