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| Item | Iron Oxide Red | Iron oxide Green | Iron oxide Brown | Iron Oxide Black | Iron oxide Yellow | Iron Oxide Blue |
| Fe2O3/Fe3O4≥ % | 96 | 92 | 93 | 86 | ||
| 105° C Moisture ≤ % | 1 | 1 | 1 | 1 | 1 | 1 |
| Water soluble salts ≤ % | 0.3 | 0.5 | 0.5 | 0.5 | 0.3 | 0.5 |
| Residue on 45um ≤ % | 0.2 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 |
| pH-value | 3.5-8 | 3--7 | 4-7 | 5-8 | 3.5-7 | 3-7 |
| Oil absorption | 15-25 | 15--25 | 20-30 | 12-25 | 25-35 | 15--20 |
| Tinting strength % | 95-105 | 95--105 | 95-105 | 95-105 | 95-105 | 95-105 |
| Density approx / cm3 | 0.7-1.1 | 0.4_0.8 | 0.8-1.3 | 0.9-1.2 | 0.4-0.6 | 0.4_0.8 |
Iron Oxide
