Application and chemical properties of titanium dioxide

Titanium dioxide is a mixture of titanium dioxide, aluminum oxide, silicon oxide and other surface treatment agents with certain particle sizes and through surface treatment (the so-called coating). Titanium dioxide is known as Titanium Dioxide. Its molecular formula is TiO2, and its relative molecular weight is 79.90. CAS Registry Number: 13463-67-7, EINECS registration number: 236-675-5. Also called titanium dioxide. Belonging to inert pigments, it is considered to be the best white pigment in the world by instinct for the time being.

The chemical nature of titanium dioxide (TiO2) is quiet, and it does not react with most local materials under general conditions. In the natural world, titanium dioxide has three kinds of crystals: plate titanium, anatase and rutile. The plate titanium type is a restless crystal type with no industrial application price. Anatase is referred to as type A, and rutile is referred to as type R. Both of them have quiet crystal lattice, which is the key white pigment and porcelain glaze. Compared with other white pigments, they have excellent whiteness, coloring power, concealment power, weather resistance, heat resistance, and chemical tranquility, especially non-toxic. Titanium dioxide is considered to be the best white pigment in the world for the time being. It is widely used in coatings, plastics, paper making, printing ink, chemical fiber, rubber, cosmetics and other industries.

Titanium dioxide is widely used in coatings, plastics, rubber, printing ink, paper, chemical fiber, ceramics, daily chemicals, medicine, food and other industries.

2. The plastic industry is the second largest user. In addition to using its high camouflage power, high achromatic power and pigment instinct, titanium dioxide can also popularize the heat resistance, light resistance and weather resistance instinct of plastic products, protect plastic products from UV light, innovate the physical and chemical instinct of plastic products, consolidate the mechanical strength of forced products and extend the service life.

Titanium dioxide for paper making is generally anatase titanium dioxide without surface treatment, which may play a role in the efficiency of fluorescent whitening agent and reduce the whiteness of paper. But the laminated paper begged to use rutile type titanium dioxide treated by surface to meet the demand of light resistance and heat resistance.

5. Textile and chemical fiber industry is another key application range of titanium dioxide. Titanium dioxide is an important action matting agent for chemical fiber. Because the sharp titanium type is softer than the golden red type, it is commonly used. Titanium dioxide for chemical fiber generally does not need surface treatment, but some special types need surface treatment in order to reduce the photochemical efficiency of titanium dioxide and avoid fiber degradation in titanium dioxide photocatalytic efficiency.

7. The ceramic industry is also the key application range of titanium dioxide. Ceramic grade titanium dioxide has the characteristics of high purity, uniform particle size, high reflectivity, good high temperature resistance, and can maintain the ash stability for 1 hour under the condition of 1200 ℃ high temperature. It has high brightness, thin coating, and light weight, and is widely used in ceramics, construction, cosmetics, and other materials.