Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content
NIOSH

CARBON BLACK

ICSC: 0471

C
Atomic mass: 12.01
ICSC # 0471 		CAS # 1333-86-4
RTECS # FF5800000
UN # 1361 (carbon, animal or vegetable origin)
March 13, 1995 Validated

TYPES OF HAZARD/ EXPOSURE

ACUTE HAZARDS/ SYMPTOMS

PREVENTION

FIRST AID/
FIRE FIGHTING

FIRE Combustible.
NO open flames. NO contact with hot surfaces.
Water spray, foam, powder, carbon dioxide.
EXPLOSION Finely dispersed particles form explosive mixtures in air.
Prevent deposition of dust; closed system, dust explosion-proof electrical equipment and lighting.
In case of fire: keep drums, etc., cool by spraying with water.
EXPOSURE
PREVENT DISPERSION OF DUST! STRICT HYGIENE!

•INHALATION Cough. Sore throat.
Local exhaust or breathing protection.
Fresh air, rest. Refer for medical attention.
•SKIN
Protective gloves.
Rinse and then wash skin with water and soap.
•EYES
Safety goggles or eye protection in combination with breathing protection if powder.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
•INGESTION
Do not eat, drink, or smoke during work. Wash hands before eating.
Rinse mouth. Rest.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Sweep spilled substance into containers. Carefully collect remainder, then remove to safe place. Personal protection: complete protective clothing including self-contained breathing apparatus.
Separated from strong oxidants.

UN Hazard Class: 4.2
ICSC: 0471 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

CARBON BLACK

ICSC: 0471

I

M

P

O

R

T

A

N

T


D

A

T

A

PHYSICAL STATE; APPEARANCE:
ODOURLESS, BLACK PELLETS OR EXTREMELY FINE POWDER.

PHYSICAL DANGERS:
Dust clouds can be ignited on contact with intensely heated surfaces (above 500°C).

CHEMICAL DANGERS:
On combustion, forms highly toxic carbon monoxide (see ICSC 0023). Reacts with strong oxidants such as chlorates, bromates and nitrates.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 3.5 mg/m3 as TWA; A4 (not classifiable as a human carcinogen); (ACGIH 2004).
MAK: (Inhalable fraction)
Carcinogen category: 3B;
(DFG 2004).
OSHA PEL: TWA 3.5 mg/m3
NIOSH REL: TWA 3.5 mg/m3 Ca TWA 0.1 mg PAHs/m3 Carbon black in presence of polycyclic aromatic hydrocarbons (PAHs) See Appendix A See Appendix C
NIOSH IDLH: 1750 mg/m3 See: 1333864


ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its aerosol and by ingestion.

INHALATION RISK:
Evaporation at 20°C is negligible; a nuisance-causing concentration of airborne particles can, however, be reached quickly.

EFFECTS OF SHORT-TERM EXPOSURE:


EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
Lungs may be affected by repeated or prolonged exposure at very high concentrations (see Notes).

PHYSICAL
PROPERTIES

Melting point: ca. 3550°C
Relative density (water = 1): 1.8-2.1
Solubility in water:
none

ENVIRONMENTAL
DATA


N O T E S

Some carbon blacks may contain compounds which are carcinogenic and as organic extracts of these have been classified as possibly carcinogenic to humans, special care should be taken to avoid exposure to such extracts. Lung effects remain controversial and may be due to contaminants. It is probable that minor effects reported are non-specific effects associated with exposure to nuisance dusts in general. Polyaromatic hydrocarbons (PAH) are reportedly present in some carbon blacks. Depending on the process of manufacture, there are variations in their chemical compositions. Carbon blacks containing over 8% volatiles may pose an explosion hazard (see Physical Dangers). Carbon black of mineral origin has no UN number and hazard classification. Card has been partly updated in October 2005. See sections Occupational Exposure Limits, Emergency Response.
Transport Emergency Card: TEC (R)-42GS2-II+III

ADDITIONAL INFORMATION



ICSC: 0471 CARBON BLACK
(C) IPCS, CEC, 1994
IMPORTANT LEGAL NOTICE: Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
Top