Rutile titanium dioxide powder R219
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Specification |
Technical Requirements |
Titanium Dioxide Content (%) |
≥93.0 |
Brightness (%) |
≥94.5 |
105℃ Volatile Matter (%) |
≤0.8 |
pH of Aqueous Suspension |
6.0–9.0 |
Oil Absorption (g/100g) |
≤20 |
Residue on Sieve (45μm, %) |
≤0.02 |
Tinting Strength (Reynolds Number) |
≥1820 |
Rutile Content (%) |
≥98 |
Resistivity of Water Extract (Ω·m) |
≥80 |
Whiteness (Compared to Standard Sample) |
Not Lower Than Standard |
Dispersibility (Hegman Number) |
≥5.50 |
Blue Undertone: The small and uniform particle size of R219 scatters blue light more effectively than larger particles, resulting in a bluer undertone and excellent whiteness.
High Weather Resistance: R219 has a high rutile content with a complete crystal lattice and sufficient filler addition. It is coated with an adequate amount of zirconium, silicon, aluminum, and phosphorus multi-element inorganic coating along with organic treatment, ensuring excellent weather resistance.
Outstanding Dispersibility: The special inorganic and organic surface treatments reduce contact between TiO₂ particles, giving R219 excellent dispersibility during application. As a result, it has good wettability and is easy to grind.
Low Oil Absorption: The low oil absorption of R219 allows titanium dioxide to maintain good fluidity in water-based coatings and inks, contributing to cost savings.
Low Abrasion: R219 adopts a specialized hydrolysis, salt treatment, calcination, and surface treatment process, making the titanium dioxide particles softer and easier to grind, thus reducing abrasion.
Packaging: Available in 25 kg paper-plastic composite bags or 500 kg and 1000 kg plastic woven bags.
Storage: Can be stored for an extended period as long as moisture is avoided.
Safety & Protection: When handling TiO₂, gloves and protective shields should be worn. In case of skin contact, the compound poses no hazard, but it is recommended to wash the skin after use.