Transparent Red Iron Oxide Dispersion
Rublev Colours Transparent Red Iron Oxide Dispersion is a yellowish red with very good transparency, high color strength, and a clean shade.
Rublev Colours Transparent Red Iron Oxide Dispersion is a yellowish red with very good transparency, a high color strength, and a clean shade. Add transparent red iron oxide to earth colors to enhance the color and increase saturation. This pigment's color in glazes is pure and intense, but it must be mulled for full effectiveness.
| Pigment Nomenclature | |||
| Common Name | Mineral Name | Chemical Name | Source/Origin |
| Transparent Red Iron Oxide | Hematite | Iron Oxide | Belgium |
Source
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 natural, continuous UV protection and is primarily used in wood stains.
Oil Absorption and Grinding
Transparent red iron oxide absorbs a large amount of oil (60 to 100 grams per 100 grams of pigment). It disperses well in oil—and water-based paints but requires more mulling to achieve its transparency due to its fine particle size. For this reason, dispersion is the best form to use for all water-based binders.
Toxicity
Transparent red iron oxides are not considered toxic, but care should be taken when handling the pigment to avoid inhaling powder.
| Pigment Information | |
| Color: | Red |
| Pigment Name: | Transparent red iron oxide |
| Colour Index: | Pigment Red 101 (77491) |
| Chemical Name: | Iron(III) oxide |
| Chemical Formula: | Fe2O3 |
| Structure: | Hematite |
| CAS No. | 1309-37-1 |
| ASTM Lightfastness Rating | |
| Acrylic: | I |
| Oil: | I |
| Watercolor: | I |
| Properties | |
| Density: | 2.6–3.2 g/cm2 |
| Bulk Density: | 12–16 g/cm2 |
| Oil Absorption: | 65–100 g oil / 100 g pigment |
| Particle Size: | 10–125 microns |
| pH Range: | 6–11 |
| Refractive Index: | nω = 3.150–3.220, nε = 2.870–2.940 |
| Heat Stability: | 572°F (300°C) |
| SKU | 254-31 |
|---|---|
| Brand | Rublev Colours |
| Vendor | Natural Pigments |
| Processing Time | Usually ships the next business day. |
| Color | Red |
| Pigment Type | Inorganic, Synthetic |
Health & Safety: There are no acute or known chronic health hazards with the anticipated use of this product (most chemicals are not thoroughly tested for chronic toxicity). Protect yourself against potentially unknown chronic hazards of this and other chemical products by avoiding ingestion, excessive skin contact, and inhaling spraying mists, sanding dust, and concentrated vapors from heating. Contact us for further information or consult the SDS for more information. Conforms to ASTM D-4236.
