INDEX | STANDARD | ||
RUTILE | ANATASE | ||
TiO2,%(m/m) ≥ | 93.0 | 98.0 | |
Rutile content ,% ≥ | 99 | / | |
Whiteness % ≥ | 98 | 98 | |
Tint reducing power (as compared with reference standard) ≥ | 100 | 100 | |
Volatile at 105°C %(m/m) ≤ | 0.3 | 0.5 | |
Water soluble substances,%(m/m) ≤ | 0.3 | 0.5 | |
PH value of aqueous suspension | 6.5-8.0 | 6.5-8.0 | |
Oil absorption,g/100g ≤ | 18 | 22 | |
Resistance of aqueous extract,Ωm ≥ | / | 20 | |
Residue on Sieve 45μ(%)max | 0.05 | 0.05 |