A Compound Like No Other—Titanium Dioxide

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Titanium is a chemical element, a silver-white transition metal, characterized by light weight, high strength, metallic luster, and resistance to wet chlorine gas corrosion. The most common compound of titanium is titanium dioxide, which is used to make white pigments.

First, properties of titanium dioxide

Titanium dioxide (chemical formula: TiO₂) is a white solid or powdery amphoteric oxide with a molecular weight of 79.83.

Titanium dioxide is a compound of titanium, which is a pure substance composed of two or more elements (different from simple substances). A compound has certain properties that are different from either the elements or ions it contains, or from other compounds.

Properties of crystal forms: TiO2 has three main crystal forms: rutile, anatase and brookite.

Optical properties: Since TiO2 nanoparticles can both scatter and absorb ultraviolet rays, it has strong ultraviolet shielding properties. It is often incorporated into textile fibers as a sunscreen, and ultrafine titanium dioxide powder is also added to sunscreen creams to make sunscreen cosmetics.


Second, the application of titanium dioxide in various fields

As a new multifunctional material in the 21st century, titanium dioxide is widely used in industry, food, environmental protection, medicine and other aspects.

1. Industrial application

Titanium dioxide is an important white pigment and porcelain glaze. It can also be used in paint, ink, plastic, rubber paper, chemical fiber, watercolor paint and other industries. Titanium dioxide is the whitest thing in the world, 5 times whiter than the commonly used pigment lithopone, so it is the best pigment for white paint. Titanium dioxide can be added to paper to make the paper white and opaque, and the effect is 10 times greater than other substances. Therefore, titanium dioxide must be added to banknote paper and art paper. Titanium dioxide is sometimes added to lighten the color of the plastic and soften the luster of the rayon. In addition, ultra-fine titanium dioxide has excellent ultraviolet light shielding and transparency, and is widely used in cosmetics, food packaging plastics, artificial fibers and natural fibers.

2. Food application

The US Food and Drug Administration stipulates that TiO2 can be used as all food white pigments. The pigment additive titanium dioxide can be safely used in general coloring foods, such as preserved fruits, jellies, fried foods, cocoa products, etc.

3. Medical application

As a pharmaceutical white pigment, TiO2 has the advantages of excellent pigment performance and low content of harmful impurities. It is suitable for the manufacture of opaque capsules, tablet film coating, creams, pharmaceutical packaging materials, and pharmaceutical inks; it has the advantages of uniform particle size and good dispersion , good dispersion in particle-removed water and gelatin, no flocculation sediment pharmaceutical preparations, can be used as a white colorant to prepare film coating suspension, sugar coating and gelatin capsules, can also be mixed with other colorants, used in Skin preparations can also replace starch as a drug excipient.

4. Application of environmental protection

TiO2 can purify the air, antibacterial and deodorizing. Environmental harmful gases can be divided into indoor harmful gases and air pollution gases. Indoor harmful gases mainly include formaldehyde released from decorative materials and methyl mercaptan, hydrogen mercapto and ammonia produced in the living environment. TiO2 can decompose and oxidize these substances adsorbed on its surface through photocatalysis, thereby reducing the concentration of these substances in the air and reducing or eliminating environmental discomfort.

Titanium dioxide has been widely concerned and applied due to its excellent catalytic performance, stable chemical performance, environmental protection and non-toxicity, and long service life. Titanium dioxide has a huge market prospect in the future.


To purchase Titanium Dioxide, contact reputable suppliers such as Wuxi Zhongti New Material Co., Ltd. We can help you find the correct grade and form of titanium dioxide for your needs, with competitively priced options.