Carbon black, also known as carbon black, is an amorphous form of carbon. Is a light, loose and very fine black powder, surface area is very large, ranging from 10 to 3000m2/g, is the carbon material (coal, natural gas, heavy oil, fuel oil, etc.) under the condition of insufficient air by incomplete combustion or thermal decomposition of the product. Made of natural gas called "gas black", made of oil called "lamp black", made of acetylene called "acetylene black". In addition, there are "trough black" "furnace black". According to the performance of carbon black, there are "reinforcing carbon black" "conductive carbon black" "wear-resistant carbon black" and so on. Can be used as black dye, used in the manufacture of Chinese ink, ink, paint, etc., but
also used as rubber reinforcing agent.