2-Butenoyl chloride

  • Crotonoyl chloride
  • Crotonic acid chloride
  • b-Methylacryloyl chloride
Formula
CH3CH=CHCOCl
Structure
Description
Light yellow clear liquid

Registry Numbers and Inventories.
CAS
10487-71-5
EC (EINECS/ELINCS)
234-010-3
EC Class
flammable, corrosive
R 10 34 37
S 26 36/37/39 45
UN (DOT)
2920
Beilstein/Gmelin
506118
Beilstein Reference
2-02-00-00394
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C4H5ClO
Formula mass
104.54
Boiling point, °C
120
Vapor pressure, mmHg
13 (25 C)
Density
1.0822 g/cm3 (17 C)
Solubility in water
Slightly soluble
Refractive index
1.45594 (17.9 C)

Hazards and Protection.
Storage
Keep away from sources of ignition. Store in a tightly closed container. Store in a dry area. Refrigerator/flammables.
Handling
Use spark-proof tools and explosion proof equipment. Do not breathe dust, vapor, mist, or gas. Do not get in eyes, on skin, or on clothing. Use only in a chemical fume hood.
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. Use a spark-proof tool.
Disposal code
11
Stability
Stable under normal temperatures and pressures.
Decomposition
Hydrogen chloride, phosgene, carbon monoxide, carbon dioxide.

Fire.
Flash Point,°C
40.5
Fire fighting
Wear approved SCBA in full pressure-demand and full protective gear. Do NOT use water directly on fire. Use foam, dry chemical, or carbon dioxide.

Health.
Poison_Class
2 (Very strong toxins)
Exposure effects
   Ingestion
Causes gastrointestinal tract burns.
   Inhalation
May cause severe irritation of the respiratory tract with sore throat, coughing, shortness of breath and delayed lung edema. Causes chemical burns to the respiratory tract.
   Skin
May cause severe irritation and possible burns.
   Eyes
Contact with eyes may cause severe irritation, and possible eye burns. Lachrymator.

First aid
 
   Ingestion
Do NOT induce vomiting. Allow the victim to rinse his mouth and then to drink 2-4 cupfuls of water, and seek medical advice.
   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. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower lids. Get medical aid.

Transport.
UN number
2920
Response guide
Hazard class
8
Packing Group
I; II
 
HS Code
2916 19 80