Carbazole

  • 9-Azafluorene
  • Dibenzopyrrole
  • Diphenylenimine
Formula
C12H9N
Structure
Description
White crystals, plates, leaflets or light tan powder. Sublimes readily.
Uses
Chemical intermediate for vat blue 43, azoic coupling component 15, pigment violet 23, for the explosive, tetranitrocarbazole, for the monomer, n-vinylcarbazole.

Registry Numbers and Inventories.
CAS
86-74-8
EC (EINECS/ELINCS)
201-696-0
R 22 40
S 22 36/37
RTECS
FE3150000
RTECS class
Tumorigen; Mutagen
Merck
13,1797
Beilstein/Gmelin
3956
Beilstein Reference
5-20-08-00009
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C12H9N
Formula mass
167.21
Melting point, °C
236
Boiling point, °C
355
Vapor pressure, mmHg
7E-5 (25 C)
Density
1.26 g/cm3
Solubility in water
Insoluble
Partition coefficient, pKow
3.72
Heat of vaporization
57.6 kJ/mol
Heat of combustion
-118.8 kJ/mol

Hazards and Protection.
Storage
Store in a cool, dry place. Store in a tightly closed container.
Handling
Wash thoroughly after handling. Wash hands before eating. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with skin and eyes. 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 protective 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. Reduce airborne dust and prevent scattering by moistening with water. Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions. Provide ventilation.
Disposal code
3
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents.
Decomposition
Nitrogen oxides, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.

Fire.
Upper exp. limit, %
5.5
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam. Use agent most appropriate to extinguish fire.
Fire potential
This material is probably combustible.
Health
1
 
Flammability
0
 
 
Reactivity
0
 

Health.
Carcinogin
CP65
Exposure effects
May cause cancer according to animal studies.
   Ingestion
May cause gastrointestinal irritation with nausea, vomiting and diarrhea.
   Inhalation
May cause respiratory tract irritation.
   Skin
May cause skin irritation.
   Eyes
May cause eye irritation.

First aid
 
   Ingestion
Do NOT induce vomiting. 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 immediately.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
   Skin
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists. Wash clothing before reuse.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.
HS Code
2933 99 90