Pigment Yellow 42 - CAS 51274-00-1

Pigment Yellow 42 (CAS 51274-00-1), also known as Yellow Iron oxide, is a yellow powder in the form of an alkaline oxide with comparatively stable chemical properties. It is insoluble in water and alcohol, slightly soluble in acids but completely dissolves in concentrated hydrochloric acid. It is used in coating, printing ink and paint, and also as a coloring agent for building material, rubber and paper-making. It is widely used due to its bright and pure colour, good weather proofing and high opacity. It is manufactured by the precipitation of ferric oxide hydroxide followed by purification through washing, drying and milling.

Catalog Number: M017719

CAS Number: 51274-00-1

Molecular Formula: Fe2O3

Molecular Weight:159.69

Purity: ≥95%

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Synonym

Synonyms	C.I.Pigmentyellow42;Transparentironoxideyellow;RAW UMBER;ROUGE;SIENNA BURNT;SIENNA;NR RED IRON OXIDE;YELLOW FERRIC OXIDE

Property

Molecular Formula:	Fe2O3
Molecular Weight	159.69
Purity	≥95%
Storage	-20°C

Computed Descriptor

InChI	InChI=1S/Fe.2H2O.O/h;2*1H2;/q+3;;;-2/p-1
InChIKey	LDHBWEYLDHLIBQ-UHFFFAOYSA-M
SMILES	O.[OH-].[O-2].[Fe+3]