A solid high in content of the element carbon and structurally in the non-graphitic
state. It is produced by pyrolysis
of organic material which has passed, at least in part, through a liquid or liquid-crystalline
state during the carbonization
process. Coke can contain mineral matter.
PAC, 1995, 67, 473
(Recommended terminology for the description of carbon as a solid (IUPAC Recommendations
on page 485