Applications of Titanium dioxide: pigment, paper, painting industry

Applications in Pigment industry

Titanium dioxide is the most widely used white pigment because of its brightness and very high refractive index, in which it is surpassed only by a few other materials. Approximately 4 million tons of pigmentary TiO2 are consumed annually worldwide. When deposited as a thin film, its refractive index and colour make it an excellent reflective optical coating for dielectric mirrors and some gemstones like "mystic fire topaz". TiO2 is also an effective opacifier in powder form, where it is employed as a pigment to provide whiteness and opacity to products such as paints, coatings, plastics, papers, inks, foods, as well as most toothpastes. Opacity is improved by optimal sizing of the titanium dioxide particles.Used as a white food colouring, it has E number E171. Titanium dioxide is often used to whiten skimmed milk; this has been shown statistically to increase skimmed milk's palatability.In cosmetic and skin care products, titanium dioxide is used as a pigment, sunscreen and a thickener. It is also used as a tattoo pigment and in styptic pencils. Titanium dioxide is produced in varying particle sizes, oil and water dispersable, and with varying coatings for the cosmetic industry. This pigment is used extensively in plastics and other applications for its UV resistant properties where it acts as a UV absorber, efficiently transforming destructive UV light energy into heat.In ceramic glazes titanium dioxide acts as an opacifier and seeds crystal formation.Titanium dioxide is found in almost every sunscreen with a physical blocker because of its high refractive index, its strong UV light absorbing capabilities and its resistance to discolouration under ultraviolet light. This advantage enhances its stability and ability to protect the skin from ultraviolet light. Sunscreens designed for infants or people with sensitive skin are often based on titanium dioxide and/or zinc oxide, as these mineral UV blockers are believed to cause less skin irritation than chemical UV absorber ingredients. The titanium dioxide particles used in sunscreens have to be coated with silica or alumina, because titanium dioxide creates radicals in the photocatalytic reaction. These radicals are carcinogenic, and could damage the skin.

Applications As a photocatalyst

TiO fibers and spirals.Titanium dioxide, particularly in the anatase form, is a photocatalyst under ultraviolet (UV) light. Recently it has been found that titanium dioxide, when spiked with nitrogen ions or doped with metal oxide like tungsten trioxide, is also a photocatalyst under either visible or UV light. The strong oxidative potential of the positive holes oxidizes water to create hydroxyl radicals. It can also oxidize oxygen or organic materials directly. Titanium dioxide is thus added to paints, cements, windows, tiles, or other products for its sterilizing, deodorizing and anti-fouling properties and is used as a hydrolysis catalyst. It is also used in the Graetzel cell, a type of chemical solar cell. Titanium dioxide can also produce electricity when in nanoparticle form. Research suggests that by using these nanoparticles to form the pixels of a screen, they generate electricity when transparent and under the influence of light. If subjected to electricity on the other hand, the nanoparticles blacken, forming the basic characteristics of a LCD screen.

Applications for other industry

Other Applications

Synthetic single crystals of TiO2It is also used in resistance-type lambda probes (a type of oxygen sensor).
Titanium dioxide is what allows osseointegration between an artificial medical implant and bone.
Titanium dioxide in solution or suspension can be used to cleave protein that contains the amino acid proline at the site where proline is present. This breakthrough in cost-effective protein splitting took place at Arizona State University in 2006.
Titanium dioxide on silica is being developed as a form of odor control in cat litter. The photocatalyst is vastly cheaper than silica beads per usage and effectively eliminates odor for longer.
Titanium dioxide is also used as a material in the memristor, a new electronic circuit element. It can be employed for solar energy conversion based on dye, polymer, or quantum dot sensitized nanocrystalline TiO2 solar cells using conjugated polymers as solid electrolytes.
It has also been recently incorporated as a photocatalyst into dental bleaching products. It allows the use of decreased concentrations of hydrogen peroxide in the bleaching agent, thus claimed to achieve similar bleaching effects with fewer side effects (e.g. transient sensitivity, change in tooth surface topography, etc.)It is also used by film and television companies as a substitute for snow when filming scenes which require a winter setting.Synthetic single crystals and films of TiO2 are used as a semiconductor,[27] and also in Bragg-stack style dielectric mirrors due to the high refractive index of TiO2

Package and storyage of Titanium Dioxide

Package : 25Kg valve bags ,500Kg 1000Kg /bag assembling bag.
No mixed with acid or reductive amtter. sealed,in cool,airiness and dry place. Avoid sunshine and fare away from heat and fire,Outfire:extinguishing it with sand , water, or kinds of fire extinguisher. Stimulation to breath trachea. mucous membrane. eyes & skin. The solution falling into the eys & skin. water washing instantly. Eat it. drinking salt water &warm soap solution immediately., sick it and cure in hospital.