Engineered elemental carbon that reinforces rubber and delivers deep, durable black coloration. It is used as a reinforcing filler in rubber, including tires, and as a black pigment in inks, coatings and plastics.
▸Rubber reinforcement: Reinforcing filler for tires and rubber goods.
▸Pigment: Black colorant for inks, coatings and plastics.
▸Conductive additive: Imparts electrical conductivity to compounds.
▸Polymer filler: Functional filler in plastic and rubber systems.
Physical Properties
Physical Description
NKRA; Pellets or Large Crystals, Other Solid; Pellets or Large Crystals; Dry Powder, Pellets or Large Crystals, Liquid, Other Solid; Dry Powder, Pellets or Large Crystals; Dry Powder; Water or Solvent Wet Solid; Other Solid; Dry Powder, Other Solid
Appearance
Steel gray to black greasy feeling solid
Odor
Odorless
Boiling Point
Sublimes at 3642 °C; triple point (graphite-liquid-gas), 4492 °C at a pressure of 101.325 kPa
Melting Point
MW: 760.642 Yellow needles of plates. MP: >280 °C. Soluble in organic solvents /Fullerene-60/
Solubility
Solubility in water: none
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
Vapor Pressure
1 mm Hg at 3586 °C
Autoignition Temperature
Activated carbon showed an auto-ignition temperature in flowing air of 452-518 °C. Presence of 5% of the base ('triethylenediamine') adsorbed on the carbon reduced the auto-ignition temperature to 230-260 °C
Safety & Handling
Full SDS available on request
A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.
Carbon black (CB, CAS 1333-86-4) is a fine, high-surface-area form of elemental carbon produced by partial combustion or thermal decomposition of hydrocarbons. It is used as a reinforcing filler in rubber, including tires, and as a black pigment in inks, coatings and plastics. Its electrical conductivity also makes it a functional additive in conductive compounds.
Frequently Asked Questions
What is carbon black used for?
Carbon black is used as a reinforcing filler in rubber (including tires), as a black pigment in inks, coatings, and plastics, and as a conductive additive that imparts electrical conductivity to compounds. RawSource supplies it in bulk to manufacturers.
Is charcoal the same as carbon black?
No. Carbon black is a fine, high-surface-area form of elemental carbon produced by partial combustion or thermal decomposition of hydrocarbons, whereas charcoal is made by pyrolyzing wood or other biomass. They differ in feedstock, structure, and particle size.
What is another name for carbon black?
Carbon black (CB, CAS 1333-86-4) is sometimes referred to generically as furnace black or by process-specific names; it is elemental carbon, formula C. Grade names denote particle size and surface-area characteristics; see the technical data sheet.
How does carbon black ship under DOT?
The supplied reference (UN1362) corresponds to activated-carbon transport classification; confirm the exact UN/shipping classification for your specific carbon black grade on the CoA and SDS, as it depends on the product form. RawSource provides applicable documentation with each shipment.
What is the cost of bulk carbon black?
Pricing depends on grade (particle size, surface area), packaging (bags, supersacks, bulk), and volume. RawSource quotes industrial quantities; request a bulk quote with your target volume for current pricing.
Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.
