What are the physical properties of titanium dioxide?

Release Time:

Apr 12,2023

Titanium dioxide has a number of unique characteristics that make it ideally suited to many different applications.

What are the physical properties of titanium dioxide?

Titanium dioxide has a number of unique characteristics that make it ideally suited to many different applications.

It has an extremely high melting point of 1 843ºC and boiling point of 2 972ºC, so occurs naturally as a solid, and, even in its particle form, it is insoluble in water. TiO2 is also an insulator.

TiO2 absorbs UV light. This property makes it appear bright white under light, unlike other white materials that can look slightly yellow.

Importantly, TiO2 also has a very high refractive index (its ability to scatter light), even higher than diamond. This makes it an incredibly bright substance and an ideal material for aesthetic design use.

Another crucial property of TiO2 is that it can show photocatalytic activity under UV light. This makes it effective for environmental purification, for different kinds of protective coatings, sterilisation and anti-fogging surfaces, and even in cancer therapy.

Brilliant
Brilliance, colour strength, opacity and pearlescence unlike any other substance.

Resistant
Resistance to heat, light and weathering prevents degradation of paint and in films and embrittlement of plastics.

Protective
Ability to scatter and absorb UV radiation makes TiO2 a crucial ingredient for sunscreen, protecting the skin from harmful, cancer-causing UV rays.

Powerful
Is used as a photocatalyst in solar panels and can also reduce pollutants in the air.

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