Titanium dioxide, commonly written as TiO2, is one of the most important white pigments used in industry. It provides opacity, brightness, whiteness, and UV resistance in paints, coatings, plastics, paper, inks, rubber, masterbatches, and selected cosmetic or personal-care applications where the correct grade is approved.
Supreme Petro Chemicals supplies titanium dioxide in India for industrial buyers. This guide explains the difference between rutile and anatase grades, common applications, packaging, and what to verify before ordering.
What Is Titanium Dioxide?
Titanium dioxide has CAS number 13463-67-7. It is an inorganic white pigment known for high refractive index and strong hiding power. Commercial grades vary by crystal form, surface treatment, particle size, oil absorption, brightness, and dispersibility.
Rutile vs Anatase Titanium Dioxide
Rutile TiO2
Rutile grades are generally preferred for exterior paints, plastics, masterbatches, coatings, and applications requiring higher weather resistance and durability. Surface-treated rutile grades can improve dispersibility and compatibility with specific resin systems.
Anatase TiO2
Anatase grades are used in interior paints, paper, rubber, ceramics, and some lower-weathering applications. They can offer strong whiteness and brightness, but typically have lower outdoor durability than rutile grades.
Industrial Applications
- Paints and coatings: Opacity, whiteness, tint strength, and hiding power.
- Plastics and masterbatch: White pigmentation and UV protection depending on grade.
- Paper: Brightness and opacity in coated and specialty papers.
- Rubber: Pigmentation and appearance improvement in selected compounds.
- Printing inks: White pigment and opacity in ink systems.
- Cosmetics and personal care: Only where a suitable approved grade and regulatory compliance are confirmed.
Quality Parameters to Check
Important specifications include TiO2 content, crystal form, oil absorption, moisture, pH, residue on sieve, tinting strength, whiteness, brightness, and surface treatment. For paints and plastics, performance testing in the buyer's own formulation is often more useful than comparing one specification in isolation.
Packaging and Supply
Titanium dioxide is commonly supplied in bags, with palletised options depending on source and quantity. Buyers should keep bags dry and protected from contamination. For high-volume users, regular supply planning helps avoid batch-to-batch formulation disruption.
Documentation
Ask for technical data sheet, MSDS/SDS, and CoA where required. For regulated uses, confirm whether the grade is approved for the intended application and market. Do not assume every TiO2 grade is suitable for food, pharma, or cosmetic use.
FAQ
Which is better, rutile or anatase?
Neither is universally better. Rutile is typically preferred for durability and exterior applications, while anatase is used where brightness and indoor performance are sufficient.
What is the CAS number of titanium dioxide?
The CAS number is 13463-67-7.
How do I request a TiO2 quote?
Share grade type, quantity, application, packing preference, and destination. Contact Supreme Petro Chemicals for titanium dioxide availability.