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Formula: Fe2O3
Molecular Weight: 159.69
CASNo.:1332-37-2
EINECS: 215-570-8
Relative density 5-5.25. Fineness 0.4 ~ 20 um. Melting point 1565(decomposition). When burned, oxygen is released, which can be reduced to iron by hydrogen and beta carbon oxide. Insoluble in water, soluble in hydrochloric acid, sulfuric acid, slightly soluble in nitric acid and yeast. It has excellent light resistance, high temperature resistance, acid resistance, alkali resistance and rust resistance. Good dispersity, strong coloring power and hiding power, no oil permeability and water permeability.
Item | Standard | Result | Method of assay |
Color Difference | Micro | Micro | 1864 |
Tinting Strength, % | ≥95 | 97.1 | GB5211.19 |
Residue On 325 mesh,% | ≤0.3 | 0.28 | GB5211.18 |
Fe% as Fe2O3 | ≥95 | 98.5 | GB/T1863-89 |
PH Value | 3.5-7 | 4.6 | GB1717 |
Oil Absorption, % g/100g | 20-35 | 24.6 | GB5211.15 |
Water Soluble salt, % | ≤0.5 | 0.23 | GB/T5211.2 |
Pb Cr O4 | Negative | Negative | GB/T1863-89 |
The Existence Of Organic Pigmentation | Negative | Negative | GB/T1863-89 |
2, used for all kinds of coating coloring and protective substances, including water-based exterior and interior coatings, powder coatings, etc.; It can also be used for oil paint including epoxy, alkyd, amino and other primer and topcoat; Can also be used for toy paint, decorative paint, furniture paint, electrophoretic paint and enamel. Iron red primer has anti-rust function, can replace the high-priced red lead paint, saving non-ferrous metals.
3, used for plastic products coloring, such as thermosetting plastics and thermoplastics, and rubber products coloring, such as car inner tube, airplane inner tube, bicycle inner tube and so on.