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Physical properties of rutile titanium dioxide

2025-01-23

Rutile titanium dioxide is a white powder with high color purity and excellent whiteness.

  Color and Appearance:

  Rutile titanium dioxide appears as a white powder, with high color purity and excellent whiteness.

  Crystal Structure:

  This product exists in the rutile crystal form, a stable crystal form of titanium dioxide, with a specific crystal structure and arrangement.

  Density:

  The density of rutile titanium dioxide is usually around 4.23 g/cm³, although this value may vary slightly depending on the preparation method and particle size.

  Hardness:

  On the Mohs hardness scale, rutile titanium dioxide has a high hardness, typically between 6 and 6.5, giving it good wear resistance in some applications.

  Refractive Index:

  Rutile titanium dioxide has a high refractive index, which makes it perform excellently in optical applications, such as providing high gloss and opacity.

  Hygroscopic Property:

  Rutile titanium dioxide has a certain degree of hygroscopicity, but the extent of its hygroscopicity is related to its surface area and surface treatment properties. Generally, surface-treated titanium dioxide has lower hygroscopicity.

  Particle Size and Distribution:

  The particle size of rutile titanium dioxide is usually controlled through milling and classification processes to obtain the desired particle size distribution. The uniformity of particle size has a significant impact on product performance and application effects.

  Dispersibility:

  Rutile titanium dioxide exhibits good dispersibility in aqueous or oily media, which facilitates its uniform distribution and performance in applications such as coatings, plastics, and rubber.

  Thermal Stability:

  Rutile titanium dioxide has high thermal stability and can maintain its physical and chemical properties at high temperatures.

  Chemical Inertness:

  Rutile titanium dioxide is inert to most chemicals at room temperature and does not easily react with other elements and compounds. However, under specific conditions (such as high temperatures, strong acids, or strong bases), its chemical properties may change.

  The physical properties of rutile titanium dioxide include color, crystal form, density, hardness, refractive index, hygroscopicity, particle size and distribution, dispersibility, thermal stability, and chemical inertness. These properties together determine the wide application of rutile titanium dioxide in coatings, plastics, rubber, paper, cosmetics, and other fields.