Graphite

  • Mineral carbon
  • Black lead
  • Plumbago
Formula
C
Structure
Description
Steel gray to black, greasy feeling, odorless solid.
Uses
For lead pencils, refractory crucibles, stove polish.

Registry Numbers and Inventories.
CAS
7782-42-5
EC (EINECS/ELINCS)
231-955-3
RTECS
MD9659600
RTECS class
Other
UN (DOT)
1361
Merck
12,4560
Beilstein/Gmelin
7851 (G)
Swiss Giftliste 1
G-8422
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Korea ECL
Listed

Properties.
Formula
C
Formula mass
12.01
Melting point, °C
3827
Vapor pressure, mmHg
380 (2220 C)
Density
2.09-2.23 g/cm3 (20 C)
Solubility in water
Insoluble
Thermal expansion
1.7E-6/K (20 C)
Heat of fusion
104.6 kJ/mol

Hazards and Protection.
Storage
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protection
Protective gloves. Safety goggles -- in combination with breathing protection if a powder.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Make no contact with the spilled material. ELIMINATE all ignition sources and ground all equipment. With clean shovel place material into clean, dry container and cover loosely; move containers from spill area.
Stability
No data.
Incompatibilities
The substance is a strong reducing agent and reacts with oxidizers.

Fire.
Autoignition, °C
449
Fire fighting
Small Fires: Dry chemical, carbon dioxide, sand, earth, water spray or regular foam. Large Fires: Water spray, fog or regular foam.
Fire potential
Flammable/combustible material. May be ignited by friction, heat, sparks or flames.
Combustion products
Fire may produce irritating and/or toxic gases.
Health
1
 
Flammability
0
 
 
Reactivity
0
 

Health.
Exposure limit(s)
TLV: ppm; 2.0 mg/m3 as respirable dust (ACGIH 1996-1997). OSHA PEL: TWA 15 mg/m3 NIOSH REL: TWA 2.5 mg/m3 (resp) NIOSH IDLH: 1250 mg/m3
Poison_Class
-
Exposure effects
The toxological properties of this substance have not been fully investigated.
   Inhalation
Cough. Long term/repeated exposure can affect lungs, resuling in graphite pneumoconiosis.
   Skin
Roughness.
   Eyes
See Skin.

First aid
 
   Ingestion
Seek medical assistance.
   Inhalation
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Administer oxygen if breathing is difficult.
   Skin
Remove and isolate contaminated clothing and shoes. In case of contact with substance, immediately flush with running water for at least 20 minutes. Wash skin with soap and water.
   Eyes
In case of contact with substance, immediately flush with running water for at least 20 minutes.

Transport.
UN number
1361
Response guide
Hazard class
4.2
Packing Group
II; III