Carbon black

  • Acetylene black
  • Channel black
  • Furnace black
Formula
C
Structure
Description
Extremely fine, odorless black powder.
Uses
Used as a pigment for rubber tires, for printing, stenciling & drawing inks, for leather, stove polish, phonograph records, for electrical insulating apparatus.

Registry Numbers and Inventories.
CAS
1333-86-4
EC (EINECS/ELINCS)
215-609-9
RTECS
FF5800000
RTECS class
Tumorigen; Mutagen
UN (DOT)
1361
Beilstein/Gmelin
7851 (G)
Swiss Giftliste 1
G-8938
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C
Formula mass
12.01
Melting point, °C
3827
Sublimation point, °C
4200
Density
1.8-2.1 g/cm3
Solubility in water
Insoluble
Dielectric constant
2.61
Thermal expansion
1.7E-6/K (20 C)
Heat of fusion
104.6 kJ/mol

Hazards and Protection.
Storage
Keep away from sources of ignition. Store in a cool, dry place. Store in a tightly closed container. Keep from contact with oxidizing materials.
D2A
Handling
Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.
Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Vacuum or sweep up material and place into a suitable disposal container. Avoid generating dusty conditions.
Stability
Stable under normal temperatures and pressures.
Incompatibilities
May react vigorously or violently when mixed with strong oxidizing agents such as chlorates, bromates and nitrates, especially when heated. Incompatible with chlorinated paraffins, lead oxide, manganese oxide, iron oxide, liquid oxygen, oils, and moisture. .
Decomposition
Carbon monoxide, carbon dioxide.

Fire.
Autoignition, °C
449
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Dust can be an explosion hazard when exposed to heat or flame. Flammable solid. Can be easily ignited and burns vigorously. Extinguishing media: For small fires, use water spray, dry chemical, carbon dioxide or chemical foam.
Fire potential
Slight risk when exposed to heat or flame. Carbon black can be ignited in the presence of open flames, and burns slowly with production of carbon monoxide.
Combustion products
Toxic vapors and gases (e.g. carbon monoxide) may be released in a fire involving carbon black.

Health.
Exposure limit(s)
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 PAHs. See Appendix A See Appendix C NIOSH IDLH: 1750 mg/m3
Carcinogin
I-2B, CP65
Poison_Class
-
Exposure effects
There are no human or animal reports suggesting a teratogenic potential for carbon black.
   Ingestion
Ingestion of large amounts may cause gastrointestinal irritation.
   Inhalation
Dust is irritating to the respiratory tract.
   Skin
May cause skin irritation.
   Eyes
Causes eye irritation.

First aid
 
   Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
   Skin
Get medical aid if irritation develops or persists. Flush skin with plenty of soap and water.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

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