Titanium Oxide (TiO₂) – Overview and Applications
Titanium Oxide, commonly known as Titanium Dioxide (TiO₂), is a naturally occurring oxide of titanium. It is a white, powdery substance widely used for its brightness, high refractive index, and strong UV light resistance. These properties make it an essential component in various industrial applications ranging from paints and coatings to cosmetics, plastics, food coloring, and even photovoltaics.
Manufacturing Process
Titanium Dioxide is primarily produced through two methods: the sulfate process and the chloride process.
- In the sulfate process, ilmenite (FeTiO₃) is dissolved in sulfuric acid and the titanium is then precipitated and calcined
- The chloride process, which is more modern and efficient, involves converting rutile or upgraded ilmenite to titanium tetrachloride (TiCl₄) which is then oxidized at high temperatures to produce TiO₂.
These processes yield different grades suitable for specific uses — from anatase form used in cosmetics and paper to rutile form preferred in paints, plastics, and coatings due to its superior durability and UV resistance.
Specifications by Application
- Paints & Coatings: High-purity rutile grade with excellent opacity and dispersion.
- Cosmetics: Ultrafine, micronized anatase form, safe for skin contact.
- Plastics & Masterbatches: Surface-treated grades with high thermal stability.
- Food Industry (E171): Food-grade anatase form approved for limited use in select regions.
- Industrial Ceramics & Inks: Grades with tight particle size distribution and brightness control.
Sourcing Matters in Industrial Supply
For industries that demand consistent quality and timely delivery, sourcing Titanium Dioxide from experienced importers with strong international networks and technical knowledge is crucial. Suppliers who focus on purity standards, competitive logistics, and application-specific grades can significantly reduce formulation risks and improve end-product performance — making them the preferred choice for large-volume users in paints, polymers, and specialty chemicals.