Carbon black

CAS 1333-86-4C12.011 g/mol

Carbon black (airborne, unbound particles of respirable size) can cause cancer according to The World Health Organization's International Agency for Research on Cancer (IARC).

IUPAC: methane

PubChem

Physical & Chemical Properties

Physical and chemical properties
Melting Point	Melting point equals greater than 3500 °C
Boiling Point	Sublimes at 3642 °C; triple point (graphite-liquid-gas), 4492 °C at a pressure of 101.325 kPa
Density	The apparent density of beech charcoal is 0.45 g/mL and that of pine charcoal is 0.28 g/mL; the density of pore-free charcoal ranges between 1.38 and 1.46 g/mL, depending on the kind of wood; the porosity of beech charcoal is ca 70%; the bulk density of charcoal, which depends on the kind of wood and the size of the pieces, ranges from 180 to 220 kg/cu m; the heating value ranges between 29 and 33 kJ/g
Solubility	Solubility in water: none
Vapor Pressure	1 mm Hg at 3586 °C
Appearance	Carbon, activated is a black grains that have been treated to improve absorptive ability. May heat spontaneously if not properly cooled after manufacture.

Data: PubChem · Last updated: 4/20/2026