Dióxido de titanio rutilo TiO2

What is rutile titanium dioxide?

Rutile titanium dioxide is the rutile crystal form of TiO₂, widely recognized as the most stable and durable type of titanium dioxide. It provides excellent hiding power, strong resistance to ultraviolet light, and high durability under outdoor conditions.

Because of these properties, rutile TiO2 is commonly chosen as a white pigment in coatings, plastics, and other demanding applications. It is regarded worldwide as a reliable material that delivers consistent performance over time.

What is titanium dioxide rutile used for?

Rutile titanium dioxide is widely used because of its excellent durability, strong opacity, and resistance to weathering. These properties make it a preferred choice for outdoor applications such as architectural and industrial coatings, plastics, and construction materials, where long-term performance matters.

It is also commonly found in packaging materials, automotive coatings, printing inks, and synthetic fibers, helping deliver consistent whiteness, opacity, and protection over time.

What is the TiO2 content of rutile?

Rutile titanium dioxide pigment typically contains about 92–98% TiO₂, with the rest made up of small amounts of zirconia and alumina coatings, and sometimes silica or other surface treatments to improve durability and dispersion.

What is the difference between rutile and anatase TiO2?

Rutile and anatase are two different crystal forms of titanium dioxide (TiO₂). They share the same chemical composition, but their crystal structures give them distinct properties and uses.

Rutile is the most stable form, with a higher refractive index and stronger UV resistance. These qualities make it the preferred choice for outdoor coatings, plastics, and other applications that demand long‑lasting whiteness and durability.

Anatase, by contrast, is less stable but has excellent dispersibility and unique photocatalytic activity. Because of these traits, anatase is often used in specialized applications such as self‑cleaning surfaces, solar cells, and certain indoor coatings. It has also been the primary crystal form used in food‑grade titanium dioxide (E171) as a coloring agent, though regulations on food use vary by region.

In brief, rutile is valued for stability and durability, while anatase is chosen for its reactivity, dispersibility, and in some cases food coloring applications.