The size of the spherical particles of carbon black has a direct impact on its blackness and dispersibility. It is also extensively used in plastics, paints, and inks as a color pigment. Typically, carbon black contains more than 95% pure carbon with minimal quantities of oxygen, hydrogen, and nitrogen. It is predominantly used as a reinforcing filler in tires and other rubber products. It is produced from the incomplete combustion of heavy petroleum substances such as FCC tar, coal tar, and ethylene cracking tar in a controlled environment. Carbon black is a form of paracrystalline carbon powder, which has a high surface area-to-volume ratio that contributes to its electrically conductive properties.
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