3-Acetylpyridine

  • Methyl pyridyl ketone
  • 3-Pyridinyl methyl ketone
  • 1-(3-Pyridinyl)ethanone
Formula
C7H7NO
Structure
Description
Clear brown liquid. Characteristic odor.

Registry Numbers and Inventories.
CAS
350-03-8
EC (EINECS/ELINCS)
206-496-7
EC Class
toxic, irritant
R 21 25 36/38
S 26 28 36/37/39 45
RTECS
OB5425000
RTECS class
Mutagen
UN (DOT)
2810
Merck
12,6195
Beilstein/Gmelin
107751
Beilstein Reference
5-21-07-00394
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C7H7NO
Formula mass
121.14
Melting point, °C
11 - 13
Boiling point, °C
220
Vapor pressure, mmHg
0.022 (20 C)
Vapor density (air=1)
4.17
Density
1.1065 g/cm3 (20 C)
Solubility in water
Soluble
Refractive index
1.5293 (20 C)
pKa/pKb
10.57 (pKb)

Hazards and Protection.
Storage
Store in a tightly closed container. Store in a cool, dry area away from incompatible substances.
Handling
Wash thoroughly after handling. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Use only in a chemical fume hood.
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. Clean up spills immediately, using the appropriate protective equipment. Provide ventilation.
Disposal code
5
Stability
No data.
Incompatibilities
Strong oxidizing agents, strong acids, strong reducing agents.
Decomposition
Nitrogen oxides, carbon monoxide, carbon dioxide.

Fire.
Flash Point,°C
104
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.
Health
3
 
Flammability
0
 
 
Reactivity
0
 

Health.
Exposure effects
   Ingestion
May be fatal if swallowed. May cause digestive tract disturbances. The toxicological properties of this substance have not been fully investigated.
   Inhalation
May cause respiratory tract irritation.
   Skin
Causes skin irritation.
   Eyes
May cause eye irritation.

First aid
 
   Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid immediately. Induce vomiting by giving one teaspoon of Syrup of Ipecac.
   Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
   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.

Transport.
UN number
2810
Response guide
HS Code
2933 39 99