Carbon Black

Definition - What does Carbon Black mean?

Carbon black is a material of paracrystalline formations produced by the incomplete combustion of heavy petroleum products. Carbon black is used primarily as a color pigment in paints, plastics and other surface coating substances. Due to its molecular structure and physical characteristics, it is sometimes applied as a surface protective substance on corrosion-prone metals to prevent the free flow of ions.

Carbon black may also be known as ivory black, lamp black and vine black.

Corrosionpedia explains Carbon Black

Carbon black contains carboxylic and phenol chemical composition groups that generate non-conductive surface properties. Acid-oxidized variations of carbon black are industrially preferred as it is more capable of withstanding high temperatures.

Two main processes are used to manufacture carbon black: furnace black and thermal black. The furnace black process is the most common and uses heavy aromatic oils as feedstock. The thermal black process uses natural gas, with significant methane or heavy aromatic oil concentrations as a feed material.

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