Transparent Red Iron Oxide Pigment

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Rublev Colours Transparent Red Iron Oxide is a yellowish red that shows very good transparency with a high color strength and a clean shade.

Rublev Colours Transparent Red Iron Oxide is a yellowish red that shows very good transparency with a high color strength and a clean shade. Add transparent red iron oxide to earth colors to enhance the color and increase saturation. The color of this pigment in glazes is very pure and intense, but it must be mulled for full effectiveness.

Pigment Nomenclature
Common NameMineral NameChemical NameSource/Origin
Transparent Red Iron OxideHematiteIron OxideBelgium


Transparent red iron oxide is a synthetic iron oxide with the chemical formula of Fe2O3 and a hematite structure.

Permanence and Compatibility

These pigments show very high fastness properties including weathering, solvent and chemical fastness. Their strong UV-light absorption provides a natural, continuous UV protection and is mostly used in wood stains.

Oil Absorption and Grinding

Transparent red iron oxide absorbs a high amount of oil (60 to 100 grams per 100 grams of pigment). It disperses well in both oil and water-based paints but requires more mulling to bring out its transparency due its very fine particle size.


Transparent red iron oxides are not considered toxic, but care should be used in handling the pigment to avoid inhaling powder.

Pigment Information
Pigment Name:Transparent red iron oxide
Colour Index:Pigment Red 101 (77491)
Chemical Name:Iron(III) oxide
Chemical Formula:Fe2O3
CAS No.1309-37-1
ASTM Lightfastness Rating
Refractive Index:nω = 3.150–3.220, nε = 2.870–2.940
Heat Stability:572°F (300°C)

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More Information
BrandRublev Colours
VendorNatural Pigments
Processing TimeUsually ships the next business day.
Pigment TypeInorganic, Synthetic

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Transparent Red Iron Oxide Pigment
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