1-Phenyl-1H-imidazole

  • 1-Phenylimidazole
  • N-Phenylimidazole
Formula
C9H8N2
Structure
Description
Yellow liquid.

Registry Numbers and Inventories.
CAS
7164-98-9
R 36/38
Beilstein/Gmelin
112356
Beilstein Reference
5-23-04-00267

Properties.
Formula
C9H8N2
Formula mass
144.17
Melting point, °C
13
Boiling point, °C
276
Vapor pressure, mmHg
0.008 (25 C)
Density
1.1397 g/cm3
Solubility in water
Slightly soluble
Refractive index
1.6025 (25 C)
pKa/pKb
8.09 (pKb)
Partition coefficient, pKow
1.98
Heat of vaporization
48.4 kJ/mol
Heat of combustion
-4865 kJ/mol

Hazards and Protection.
Storage
Store in a cool, dry place. Store in a tightly closed container.
Handling
Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.
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 prevent skin exposure.
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
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container.
Stability
No data.
Incompatibilities
Strong oxidizing agents.
Decomposition
Carbon monoxide, oxides of nitrogen, carbon dioxide.

Fire.
Flash Point,°C
121
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam.

Health.
Exposure effects
   Ingestion
Harmful if swallowed.
   Inhalation
Harmful if inhaled.
   Skin
Harmful if absorbed through the skin.
   Eyes
May cause eye irritation.

First aid
 
   Ingestion
Get medical aid. Wash mouth out with water.
   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. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.