A special type of
carbon black produced by
pyrolysis of gaseous
hydrocarbons in a preheated chamber in the absence of air. Thermal black consists of relatively
large individual spheres
(
-
diameter) and aggregates of a small number of pseudospherical particles. The preferred
alignment of the layer planes is parallel to the surface of the spheres.
Source:
PAC, 1995, 67, 473
(Recommended terminology for the description of carbon as a solid (IUPAC Recommendations
1995))
on page 505