"carbon black." YourDictionary, n.d. Web. 15 October 2018. <http://www.yourdictionary.com/carbon-black>.
carbon black. (n.d.). Retrieved October 15th, 2018, from http://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.