- Mineral carbon
- Black lead
Steel gray to black, greasy feeling, odorless solid.
For lead pencils, refractory crucibles, stove polish.
Registry Numbers and Inventories.
Swiss Giftliste 1
Melting point, °C
Vapor pressure, mmHg
380 (2220 C)
2.09-2.23 g/cm3 (20 C)
Solubility in water
1.7E-6/K (20 C)
Heat of fusion
Hazards and Protection.
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.
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.
Protective gloves. Safety goggles -- in combination with breathing protection if a powder.
Wear positive pressure self-contained breathing apparatus (SCBA).
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.
The substance is a strong reducing agent and reacts with oxidizers.
Small Fires: Dry chemical, carbon dioxide, sand, earth, water spray or regular foam. Large Fires: Water spray, fog or regular foam.
Flammable/combustible material. May be ignited by friction, heat, sparks or flames.
Fire may produce irritating and/or toxic gases.
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
The toxological properties of this substance have not been fully investigated.
Cough. Long term/repeated exposure can affect lungs, resuling in graphite pneumoconiosis.
Seek medical assistance.
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Administer oxygen if breathing is difficult.
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.
In case of contact with substance, immediately flush with running water for at least 20 minutes.