Gas phase white carbon black, commonly known as "nano white carbon black", is widely used in various industries as additives, catalyst carrier, petrochemical, bleaching agent, matting agent, rubber reinforcing agent, plastic filling agent, ink thickening agent, metal soft polishing agent, insulation insulation filler, senior daily cosmetic filler and spraying materials, medicine, environmental protection and other fields. And for the development of related industrial fields to provide the basis of new materials and technical assurance. Due to its special functions compared with conventional materials in magnetism, catalysis, light absorption, thermal resistance and melting point, it has received great attention.

Choline chloride was developed by the Agricultural Technology Institute of the Ministry of Agriculture, Forestry and Fisheries of Japan in 1964. It was registered as a plant growth regulator in 1987 and also became vitamin B4. The common choline chloride on the market is divided into plant carrier type choline chloride and White carbon black (silicon dioxide) as carrier Choline chloride

Potassium dihydrogen phosphate, an inorganic compound with the chemical formula KH2PO4, is deliquescent, melts to a clear liquid when heated to 400°C and cures to an opaque, glassy potassium metaphosphate when cooled.