4-Benzylpyridine

  • 4-(Phenylmethyl)pyridine
  • g-Benzylpyridine
  • Ba 33216
Formula
4-(C6H5CH2)C5H4N
Structure
Description
Colorless to light yellow liquid.

Registry Numbers and Inventories.
CAS
2116-65-6
EC (EINECS/ELINCS)
218-319-0
EC Class
irritant
R 20/21/22 36/38
S 26 36/37/39
RTECS
US2625000
RTECS class
Other
UN (DOT)
2810
Beilstein/Gmelin
115831
Beilstein Reference
5-20-07-00561
Canada DSL/NDSL
NDSL
US TSCA
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C12H11N
Formula mass
169.23
Melting point, °C
9 - 11
Boiling point, °C
287
Vapor pressure, mmHg
75 (135 C)
Vapor density (air=1)
5.8
Density
1.0756 g/cm3 (0 C)
Solubility in water
Insoluble
Refractive index
1.582 (20 C)
pKa/pKb
8.26 (pKb)

Hazards and Protection.
Storage
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Store at around 20 C.
Handling
Wash thoroughly after handling. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Use with adequate ventilation. Wash clothing before reuse.
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
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use. 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. Clean up spills immediately, using the appropriate protective equipment. Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Provide ventilation.
Disposal code
5
Stability
No data.
Incompatibilities
Oxidizing agents, acids.
Decomposition
Carbon monoxide, oxides of nitrogen, carbon dioxide.

Fire.
Flash Point,°C
115
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 appropriate foam.
Fire potential
Combustible material: may burn but does not ignite readily.
Hazards
When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Exposure effects
Effects may be delayed.
   Ingestion
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May cause central nervous system effects. May be harmful if swallowed.
   Inhalation
Causes respiratory tract irritation. May cause respiratory tract irritation. Can produce delayed pulmonary edema.
   Skin
Causes skin irritation.
   Eyes
Causes eye irritation. May cause chemical conjunctivitis.

First aid
 
   Ingestion
Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or 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. 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.
UN number
2810
Response guide
Hazard class
6.1
Packing Group
I; II; III
 
HS Code
2933 39 99