2,3-Dichloropropanoyl chloride

  • a,b-Dichloropropanoyl chloride
  • a,b-Dichloropropionyl chloride
  • 2,3-Dichloropropionyl chloride
Formula
C3H3Cl3O
Structure
Description
Clear, very faintly yellow-green liquid.

Registry Numbers and Inventories.
CAS
7623-13-4
EC (EINECS/ELINCS)
231-541-2
9 26 36/37/39 45
UN (DOT)
3265
Beilstein/Gmelin
506750
Canada DSL/NDSL
NDSL
US TSCA
Listed

Properties.
Formula
C3H3Cl3O
Formula mass
161.41
Melting point, °C
-25
Boiling point, °C
179
Vapor pressure, mmHg
3.3 (25 C)
Critical temperature
397
Critical pressure
41.29
Density
1.476 g/cm3 (25 C)
Solubility in water
7.7 g/L (25 C)
Refractive index
1.477 (20 C)
Partition coefficient, pKow
1.34
Heat of vaporization
39.03 kJ/mol

Hazards and Protection.
Storage
Keep tightly closed. Store in a cool dry place.
Protection
Compatible chemical-resistant gloves. Chemical safety goggles. Protective clothing. Faceshield (8-inch minimum).
Small spills/leaks
Cover with dry-lime, sand, or soda ash. Place in covered containers using non-sparking tools and transport outdoors. Ventilate area and wash spill site after material pickup is complete.
Stability
Water, Alcohols, Oxidizing agents, Strong bases.
Decomposition
Carbon monoxide, Carbon dioxide, Hydrogen chloride gas, Phosgene gas.

Fire.
Flash Point,°C
65
Fire fighting
DO NOT USE WATER. Use carbon dioxide or dry chemical powder. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
Fire potential
Water hydrolyzes material liberating acidic gas which in contact with metal surfaces can generate flammable and/or explosive hydrogen gas.
Hazards
Emits toxic fumes under fire conditions. Corrosive. Lachrymator.

Health.
Exposure effects
Harmful if swallowed, inhaled, or absorbed through skin. Causes burns. Symptoms of exposure may include burning sensation, coughing, wheezing, laryngitis, shortness of breath, headache, nausea, and vomiting. Inhalation may result in spasm, inflammation and edema of the larynx and bronchi, chemical pneumonitis, and pulmonary edema. Material is extremely destructive to tissue of the mucous membranes and upper respiratory tract, eyes, and skin.

First aid
 
   Ingestion
If swallowed, wash out mouth with water provided person is conscious. Call a physician.
   Inhalation
If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.
   Skin
In case of contact, immediately wash skin with soap and copious amounts of water. Remove contaminated clothing and shoes. Call a physician.
   Eyes
In case of contact with eyes, flush with copious amounts of water for at least 15 minutes. Assure adequate flushing by separating the eyelids with fingers. Call a physician.

Transport.
UN number
3265
Response guide
Hazard class
8
Packing Group
II