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The material selection platform
Cosmetics Ingredients
The material selection platform
Cosmetics Ingredients

CI 77492

CAS Number 51274-00-1 / 64294-91-3
Chem/IUPAC Name: Iron oxide
EINECS/ELINCS No: 257-098-5 / 215-722-3 / 215-570-8 / 257-670-1
COSING REF No: 32830
CI 77492
CI 77492 is a dye of mineral origin also called Iron Oxide. It gives products their yellow color. It is often mixed with other iron oxides like CI 77491 (red) and CI 77499 (black) to represent different hues. It is authorized in organic. α-Fe2O3·H2O.

What is CI 77492 used for?

It is widely used in color cosmetics to give a color to the skin and impart color to the personal care products. It is added in products such as concealer, foundation, eye shadow, eyebrow powder, BB cream, CC cream, and soap. It is often mixed with other iron oxides such as CI 77491 (red) and CI 77499 (black) to represent different shades.

Origin

Thermal decomposition of iron salts, precipitation of iron salts, and reduction of organic compounds by iron.

What does CI 77492 do in a formulation?

  • Cosmetic colorant

Safety profile

This compound has a long history of use as a colorant in cosmetics and is considered safe for use by the FDA.

Technical profile

Property Values
Melting Point 135°C
pH 3.4 - 3.9
Solubility Soluble in mineral acids
Insoluble in water and ethanol
45

Commercial Selection : Grades containing solely CI 77492

129
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