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GRAPHITE (NATURAL)
ICSC: 0893
Peer-Review Status: 10.06.1997 Validated
Plumbago
Black lead
Mineral carbon 
CAS #: 7782-42-5 RTECS #: MD9659600
EINECS #: 231-955-3
    Formula: C
Atomic mass: 12.01

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Combustible under specific conditions.  NO open flames.  Use water spray, powder, foam, carbon dioxide. 
EXPLOSION Finely dispersed particles form explosive mixtures in air.  Closed system, ventilation, explosion-proof electrical equipment and lighting. Prevent deposition of dust.  In case of fire: keep drums, etc., cool by spraying with water. 
 
EXPOSURE   PREVENT DISPERSION OF DUST!   
Inhalation Cough.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. 
Skin Roughness.  Protective gloves.  Rinse and then wash skin with water and soap. 
Eyes   Wear safety spectacles 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 refer for medical attention. 
Ingestion     Rinse mouth. Rest. 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Then wash away with plenty of water. Wash away remainder with plenty of water. Personal protection: particulate filter respirator adapted to the airborne concentration of the substance.   
EC Classification
 
UN Classification
 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
  Separated from strong oxidants. Dry. Keep in a well-ventilated room. 

IMPORTANT DATA
Physical State; Appearance
BLACK FLAKES, LUMPS, POWDER OR CHIPS. 

Physical dangers
Dust explosion possible if in powder or granular form, mixed with air. 

Chemical dangers
The substance is a strong reducing agent. It reacts violently with oxidants. 

Occupational exposure limits
TLV (respirable fraction): 2mg/m³ as TWA; (ACGIH 2008).
MAK (respirable fraction): 1.5 mg/m³; Pregnancy risk group: C; (DFG 2008).
MAK (inhalable fraction): 4 mg/m³; Pregnancy risk group: C; (DFG 2008). 

Routes of exposure
The substance can be absorbed into the body by inhalation. 

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
Repeated or prolonged inhalation of dusts may cause effects on the lungs. This may result in graphite pneumoconiosis. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Sublimation point: 3652°C
Relative density (water = 1): 2.09-2.23
Solubility in water: insoluble 
 

NOTES
See Synthetic graphite CAS 7440-44-0.
Synthetic and natural graphite may be mixed and many graphite products contain deliberate additives such as cristobalite, clay, coal, and petroleum products.
Natural Graphite is usually found associated with impurities such as mica, iron oxide, granite and free silica. Content can range 2-25%.
Card has been partially updated in November 2008: see Occupational Exposure Limits. 

ADDITIONAL INFORMATION
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.


    See Also:
       Toxicological Abbreviations