China Rubber Grade White Powder Additives 99.7% Zinc Oxide, Find details about China Titanium Dioxide, Rutile Grade Titanium Dioxide from Rubber Grade White Powder Additives 99.7% Zinc Oxide
Molecular formula | ZnO |
Molar mass | 81.408 g/mol |
Appearance | White solid |
Odor | odorless |
Density | 5.606 g/cm3 |
Melting point | 1975 °C (decomposes)[1] |
Boiling point | 2360 °C |
Solubility in water | 0.16 mg/100 mL (30 °C) |
Band gap | 3.3 eV (direct) |
Refractive index (nD) | 2.0041 |
Item | SK-R350 | Typical value |
TiO2 content % ≥ | 92.5 | 93.0 |
Content of rutile %≥ | 99.0 | 99.0 |
Whiteness(compared with standard sample) | Not less than | Not less than |
Brightness% ≥ | 95.1 | 95.2 |
Tint-reducing power, Reynolds number ≥ | 1920 | 1950 |
Dispersibility (Hegman) ≥ | 6.50 | 6.75 |
pH value | 6.5~8.5 | 6.9 |
Oil absorption, g/100g≤ | 20.0 | 18.0 |
Volatile at 105ºC, %≤ | 0.5 | 0.4 |
Sieve residue( 45 µ m), %≤ | 0.02 | 0.01 |
Specific resistance, Ω. M≥ | 80.0 | 120.0 |