Profile 　White carbon black is a highly-refined chemical product mainly composed of SiO2 (approximately 80%-95%). It is white in color; its name is due to the fact that its main properties and uses are similar to those of carbon black. Its chemical characteristics are stable, it has good dispersion, and it is insoluble in water, heat resistant, nonflammable, resistant to acids and alkalis, non-polluting, porous, and a very good insulator. White carbon black is chiefly used as a rubber filler and reinforcing agent. It is used in the manufacture of white, colored, and transparent rubber products. It can significantly improve the tensile strength, tear resistance, and abrasion resistance of rubber products.

White carbon black can produce light colors and transparency in rubber products. And since it is non-toxic and tasteless, white carbon black can be widely used in plastics, paints, inks, paper, pharmaceuticals, everyday chemical products, and foods. It currently possesses nearly boundless development potential. White carbon black can be synthesized from silicon-rich non-metallic minerals such as kaolin, wollastonite, serpentine, bentonite, and diatomaceous earth. Industrial white carbon black consists of amorphous silicon dioxide precipitated using chemical methods. This simple-to-use additive material can ensure easily controlled product quality. White carbon black is inexpensive and highly effective. It is a high added value product made by processing non-metallic minerals. It can be produced by precipitation from a sulfuric acid solution of silicates, or made using a vapor phase method.

Chemical composition: SiO2•nH2O

Uses
　1. Precipitated white carbon black possesses high surface activity, and can strengthen internal cohesiveness in rubber. It can be used as a reinforcing agent, and yields extraordinary strength and transparency in natural and synthetic rubber. Vulcanized rubber products containing white carbon black display superior tensile strength, hardness, flexibility, resilience, tear resistance, abrasion resistance, and aging resistance. It can give products excellent transparency and translucency. It is currently widely used in high-end athletic shoes, sports shoes, shoe soles, tape, rice milling rollers, and colored or light-colored bicycle tires, auto tires, and industrial tires. The most important use of white carbon black is as a rubber reinforcing agent; 80%-90% is used for this purpose. It can enhance abrasion resistance, tear resistance, and hardness when used in the manufacture of transparent or opaque, light-colored rubber products.

　2. Can increase tensile strength and reduce abrasion when used in plastic products. Adding white carbon black to PVC can improve insulation performance. Use in PE  can improve tensile strength and abrasion resistance. Can improve physical properties when used in phenolic fabric and phenolic glass steel.

　3. Improves insulation when used in the manufacture of high-voltage cable.

　4. White carbon black can control and increase the viscosity of liquids. The addition of white carbon black to paints and inks can increase viscosity and thixotropy, and prevent settling. It can brighten colors and increase transparency.

　5. Can improve the tear resistance and  wrinkle resistance of paper. Enhances brightness, increases ink adsorption, and reduces transparency or achieves a bright transparent effect. Large amounts are used in the production of high-end lightweight paper.

　6. Used in pharmaceuticals and pesticides as a carrier for active components and a stabilizer for floating impurities.

　7. Prevents shrinkage and increases adhesion when mixed with epoxy resin before pouring..
　8. Used in rollers and tape in textile and grain processing equipment. Dramatically increases tensile strength, and can improve product hardness and abrasion resistance,

　9. Used to produce extinguishing agent. Achieves extremely good insulation; provides an oxygen barrier and quickly puts out fires. This product can also be used as a raw material in vehicle and metal polishing agents, film opening agents, latex separants, explosive carriers, lightweight material products, and cosmetics, and as a raw material and additive in animal feed.