Property | R216 |
TiO2 content % | ≥92.0 |
Rutile content % | ≥98.0 |
Color (compared with standard sample) ΔL*(sample-standard sample) Δs=(Δa2+Δb2)0.5 | Not lower than ≥-0.3 ≤0.5 |
Matter volatile at 105ºC % | ≤0.5 |
Matter soluble in water % | ≤0.5 |
Residue on sieve 45µm % | ≤0.1 |
PH of aqueous suspension | 6.5-8.5 |
Brightness % | ≥95 |
Oil absorption g/100g | ≤23 |
Tinting strength , Reynolds number | ≥1720 |