"carbon black." YourDictionary, n.d. Web. 22 March 2019. <https://www.yourdictionary.com/carbon-black>.
carbon black. (n.d.). Retrieved March 22nd, 2019, from https://www.yourdictionary.com/carbon-black
Any of various finely divided forms of carbon derived from the incomplete combustion of natural gas or petroleum oil and used to reinforce rubber and as an ingredient in inks, paints, crayons, and polishes.