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Carbon black (with subtypes acetylene black, channel black, furnace black, lamp black and thermal black) is a material produced by the incomplete combustion of coal tar, vegetable matter, or petroleum products, including fuel oil, fluid catalytic cracking tar, and ethylene cracking in a limited supply of air.
Bone char is primarily made from cattle and pig bones; however, to prevent the spread of Creutzfeldt–Jakob disease, the skull and spine are no longer used. [2] The bones are heated in a sealed vessel at up to 700 °C (1,292 °F); the oxygen concentration must be kept low while doing this, as it affects the quality of the product, particularly its adsorption capacity.
Iron pigments. Mars black or Iron black (PBk11) (C.I. No.77499) Synthetic magnetite Fe 3 O 4. Manganese pigments.
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Carbon black is essentially formed out of primary carbon, but its structure is much less arranged than that of, for example, graphite. Carbon black exists in the form of discrete particles, however, during the production process its spherical particles, also called primary particles, cluster (aggregate) into chains or clusters.