ICSC 0471 - CARBON BLACK

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CARBON BLACK

ICSC: 0471
_{March 1995}

CAS No: 1333-86-4
RTECS No: FF5800000
UN No: 1361 (carbon, animal or vegetable origin)

C
Atomic mass: 12.01

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	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.	UN Hazard Class: 4.2

EMERGENCY RESPONSE	SAFE STORAGE
Transport Emergency Card: TEC (R)-42GS2-II+III	Separated from strong oxidants.

IMPORTANT DATA

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).

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 long-term or repeated exposure
Lungs may be affected by repeated or prolonged exposure at very high concentrations (see Notes).

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

NOTES

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.

IPCS
International
Programme on
Chemical Safety

Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004

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