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| Colour Group | Iron Content (as Fe2O3) | 325 Mesh Residue (wt.%) | Mean Particle Size (μ) | Specific Gravity g/cc | Specific Gravity lbs/gallon | Tap Density g/cc | Oil Absorption lbs/100 lbs | pH |
|---|---|---|---|---|---|---|---|---|
| 508BU | 53% | 0.06 | 1.50 | 3.6 | 29.7 | 0.7 | 62.0 | 7.9 |
| 778BN | 15% | 0.01 | 2.20 | 1.9 | 16.0 | 0.6 | 52.4 | 7.7 |
Color palette
