| Project | Indicator |
|---|---|
| TiO₂ content, % | ≥91.0 |
| Rutile conversion rate, % | ≥98.0 |
| Water soluble matter, % | ≤0.5 |
| Volatile matter(105℃), % | ≤0.8 |
| Tinting strength(Reynolds number) | ≥1920 |
| pH value of aqueous suspension | 6.0~9.0 |
| Oil absorption value, g/100g | ≤20 |
| Residue on 45μm sieve, % | ≤0.02 |
| Colour compared with standard sample | not less than |
| Volatile matter content at 105℃ after pre‑treatment for 24h under (23±2)℃ and relative humidity (50±5) % | 1 |
| Organic treatment | have |
