White carbon black has surface hydroxyl groups present, which are reflected in the molecules as bound water. This is definitely a different substance from anhydrous silica
The use of white carbon black (this paragraph is selected from Baidu Baike) http://baike.baidu.com/view/717917.htm ）:
1. White carbon black is used in colored rubber products to replace carbon black for reinforcement, meeting the needs of white or semi transparent products. Silica also has super adhesion, tear resistance, heat resistance and aging resistance, so it can also replace part of carbon black in black rubber products to obtain high-quality rubber products, such as off-road tires, engineering tires, radial tires, etc.
2. In agricultural chemicals such as pesticides and high-efficiency spraying fertilizers, using white carbon black as a carrier or diluent can maintain long-lasting efficacy because it has high adsorption power, is easy to suspend, has good affinity and chemical stability. Even under rain, flushing, and hot conditions, it can remain unchanged for a long time.
Application of silica (Baidu Baike) http://baike.baidu.com/view/27254.html ）:
1. The main raw materials for ceramics and refractory materials such as flat glass, float glass, glass products (glass jars, glass bottles, glass tubes, etc.), optical glass, glass fibers, glass instruments, conductive glass, glass cloth, and anti radiation special glass, as well as raw materials for high silicon bricks, ordinary silicon bricks, and silicon carbide for kilns
2. Raw materials or additives for silicon metal, silicon iron alloy, silicon aluminum alloy, etc., flux building concrete, cementitious materials, road construction materials, artificial marble, cement physical performance testing materials (i.e. cement standard sand), etc
3. Raw materials such as silicon compounds and water glass, fillers for sulfuric acid towers, and amorphous silica micro powder
4. The main raw materials for casting sand and grinding materials (sandblasting, hard grinding paper, sandpaper, sandcloth, etc.)
5. High purity metal silicon, communication optical fibers, etc
6. Can improve wear resistance
7. Fillers (can improve the weather resistance of coatings)
8. A type of food additive mainly used in the food industry to prevent powdery food from clumping and maintaining free flow, or to adsorb liquid spices, oils, vitamins, etc., making them into powder, such as powdered oils, solid spices, and solid wine products. (Example: Milk powder)
9. Transparent colored and opaque toothpaste with white carbon black as filler and abrasives. This type of toothpaste has good flexibility, dispersibility, smooth and soft paste, good abrasion resistance, and does not corrode the toothpaste tube body; It can maintain the stability of medicinal toothpaste. Especially with good compatibility with nitrides, it can avoid the disadvantage of insoluble salts produced by calcium salts as abrasives.
10. Used in adhesives made of natural rubber or synthetic rubber, it provides thixotropy and reinforcement, while also improving adhesion due to its stretchability, making it high-quality and cost-effective.
11. White carbon black can be used in some products to improve free fluidity, such as grassland fertilizers, fungicides, grinding wheel abrasives, laundry bleaches, phenolic injection molded urotropine, plastic products of phenols and urea, manufacturing rubber sulfur and anti caking mixtures.
Using white carbon black as a paper filler can improve the ink resistance and mechanical strength of the paper, increase whiteness, and reduce unit weight. It can effectively achieve paper lightweighting, reduce production costs, and improve paper performance. In addition, it can also be used in many industries such as fire agents, feed, cosmetics, extinction agents, pigments, paints, etc.