silicon dioxide
Gas phase white carbon black is an amorphous powder formed by the high-temperature hydrolysis of silicon chloride silicon tetrachloride or trichloromethylsilane in a mixture of air and hydrogen gas. It is often a spherical particle with hydroxyl groups and adsorbed water on the surface, with a particle size between 7-40nm, a large specific surface area, and high chemical purity, SiO2>99.8%。 Gas phase white carbon black can be divided into hydrophilic and hydrophobic types based on whether it has undergone surface treatment, and can be further classified into different types based on the specific surface area.
