carbon black
An industrially manufactured @C01173@ material in the form of spheres and of their fused aggregates with sizes below \(1000\ \text{nm}\).
Carbon black is a commercial product manufactured by thermal @D01547@, including detonation, or by incomplete combustion of carbon hydrogen compounds and has a well-defined @MT07285@ with a minimum content of tars or other extraneous materials. For historical reasons, however, carbon black is popularly but incorrectly regarded as a form of @S05768@. In fact, in many languages, the same word is used to designate both materials. Carbon black is manufactured under controlled conditions, whereas @S05768@ is randomly formed. They can be distinguished on the basis of tar, ash content and impurities. Attempts in the literature to create a general term, 'aciniform carbon', which would cover both carbon black and @S05768@, are not yet generally accepted.
PAC, 1990, 62, 2167. (Glossary of atmospheric chemistry terms (Recommendations 1990)) on page 2178 [Terms] [Paper]
PAC, 1995, 67, 473. (Recommended terminology for the description of carbon as a solid (IUPAC Recommendations 1995)) on page 479 [Terms] [Paper]