Carbon black is a quasi graphite structure substance that is formed by incomplete combustion or pyrolysis of hydrocarbons (mainly petroleum derivatives), which is formed by incomplete combustion or thermal cracking. It exists in the form of aggregates and shows pure black powder or granular. The size, structure and surface activity of the product vary greatly depending on the raw material and the production process. Carbon black is insoluble in water and has acidity and alkalinity. It produces carbon dioxide after burning. Carbon black is mainly composed of carbon and contains trace amounts of hydrogen, oxygen, sulphur, ash, tar and water.