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| Model | Fe2O3 (%) |
oil absorption (g/100g) |
Residue (%) |
water-solubility (%) |
Moisture (%) |
pH | Density (g/cm3) |
shape of particle |
Chromatic aberration |
Tinting Strength (%) |
|---|---|---|---|---|---|---|---|---|---|---|
| Iron Oxide Brown 686 | ≥90 | 15-25 | ≤0.5 | ≤0.5 | ≤1.0 | 4-7 | 0.8-1.2 | Irregular | ≤1 | 95-105 |
| Iron Oxide Brown 610 | ≥88 | 25-35 | ≤0.3 | ≤0.5 | ≤1.0 | 4-7 | 0.7-1.1 | Irregular | ≤1 | 95-105 |
