2-Chloropyridine

  • alpha-Chloropyridine
Formula
2-(Cl)C5H4N
Structure
Description
Clear, colorless to light yellow, oily liquid.
Uses
Used to make other chemicals.

Registry Numbers and Inventories.
CAS
109-09-1
EC (EINECS/ELINCS)
203-646-3
EC Class
toxic, irritant
R 23/24/25 36/37/38
S 26 36/37/39 45
RTECS
US5950000
RTECS class
Tumorigen; Mutagen
UN (DOT)
2822
Beilstein/Gmelin
105788
Beilstein Reference
5-20-05-00402
Canada DSL/NDSL
NDSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C5H4ClN
Formula mass
113.55
Melting point, °C
-46
Boiling point, °C
166
Vapor pressure, mmHg
0.015 (-30 C)
Vapor density (air=1)
3.93
Critical temperature
3.85
Critical pressure
50.2
Density
1.205 g/cm3 (20 C)
Solubility in water
10-50 mg/ml
Refractive index
1.5320 (20 C)
Partition coefficient, pKow
1.6
Heat of vaporization
51.0 kJ/mol
Heat of combustion
-2616 kJ/mol

Hazards and Protection.
Storage
Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling
Wash thoroughly after handling. Avoid contact with eyes, skin, and clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Avoid contact with heat, sparks and flame. Avoid ingestion and inhalation. Use with adequate ventilation. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
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. Remove all sources of ignition. Provide ventilation.
Disposal code
9
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Oxidizing agents
Decomposition
Hydrogen chloride, nitrogen oxides, carbon monoxide, carbon dioxide, nitrogen, chlorine, phosgene gas.

Fire.
Flash Point,°C
64
Autoignition, °C
585
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. Use water spray to keep fire-exposed containers cool. Combustible Liquid. Containers may explode when heated. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam. Use water spray to cool fire-exposed containers.
Fire potential
May burn but does not ignite readily.
Hazards
When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards. May polymerize explosively when heated or involved in a fire. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. Runoff may pollute waterways. Substance may be transported in a molten form.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.
Health
4
 
Flammability
2
 
 
Reactivity
0
 

Health.
Exposure effects
   Ingestion
Causes gastrointestinal tract irritation.
   Inhalation
Causes respiratory tract irritation.
   Skin
Causes severe skin irritation. May be fatal if absorbed through the skin.
   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 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
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
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.
UN number
2822
Response guide
Hazard class
6.1
Packing Group
II
 
HS Code
2933 39 99
 
Std. Transport #
4921614