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Quality Standard: | ||
Index | Specifications | |
TiO2 content | ≥99.00 | |
Whiteness (compared with first class standard) | Not lower than | |
Scattering power (compared with first class standard) | ≥100 | |
Matter volatile at 105°C % | ≤0.5 | |
pH of aqueous suspension | 6.5-8.0 | |
Oil absorption (g/100g) | ≤23 | |
Residue on sieve 45μm % | ≤0.10 | |
Resistivity of the aqueous extract Ω | ≥40 | |
Water absorption(ml/100g) | ≤26 | |
Water dispersion power % | ≥70 | |
lron content,ppm | ≤40 | |
Index controlled by L | ≥99.00 | |
Gardner of dry powder b | ≤0.45 | |
Pb(mg/kg) | ≤5 | |
Sb(mg/kg) | ≤2 | |
Hg(mg/kg) | ≤2 | |
Ba(mg/kg) | ≤5 | |
As(mg/kg) | ≤3 | |
Weight loss after firing, % | ≤0.5 | |
Water soluble, % | ≤0.5 | |
Acid soluble, % | ≤0.5 | |













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