2-Chloroethyl methyl sulfide

  • 1-Chloro-2-(methylthio)ethane
  • 2-Chloroethyl methyl thioether
  • 4-Chloro-2-thiabutane
  • Methyl b-chloroethyl sulfide
Formula
C3H7ClS
Structure
Description
Colorless liquid with a stench.

Registry Numbers and Inventories.
CAS
542-81-4
EC (EINECS/ELINCS)
208-828-6
Japan ENCS (MITI)
Listed

Properties.
Formula
C3H7ClS
Formula mass
110.61
Melting point, °C
-86
Boiling point, °C
56 (40 torr)
Vapor pressure, mmHg
7.8 (25 C)
Critical temperature
351
Critical pressure
42.4
Density
1.069 g/cm3 (20 C)
Solubility in water
Slightly soluble
Refractive index
1.486 (20 C)
Partition coefficient, pKow
1.52
Heat of vaporization
36.17 kJ/mol

Hazards and Protection.
Storage
Keep container tightly closed. Refrigerate.
Protection
Chemical resistant gloves, chemical protective goggles and protective clothing.
Respirators
NIOSH/MSHA approved respirator or SCBA.
Small spills/leaks
Evacuate area. Ventilate area. Cover with activated carbon adsorbent, take up and place in closed containers. Transport outdoors. Ventilate area and wash spill site after material pickup is complete.
Incompatibilities
Strong bases, strong oxidizing agents, strong reducing agents.
Decomposition
Oxides of carbon, oxides of sulfur, hydrogen chloride, hydrogen sulfide.

Fire.
Flash Point,°C
42
Fire fighting
Extinguish with water spray, carbon dioxide, dry chemical powder or appropriate foam. Use approved SCBA and full protective equipment.
Fire potential
Combustible.
Hazards
Vapors may travel considerable distance to source of ignition and flash back.
Combustion products
Emits toxic fumes under fire conditions.

Health.
Exposure effects
Symptoms of exposure may include burning sensation, coughing, wheezing, laryngitis, shortness of breath, headache, nausea, vomiting.
   Ingestion
Harmful if swallowed.
   Inhalation
Extremely destructive to mucous membranes and upper respiratory tract. May be fatal as a result of spasm, inflammation, edema of the larynx and bronchi.
   Skin
Harmful if absorbed through the skin.
   Eyes
Corrosive on contact.

First aid
 
   Ingestion
Wash mouth out with water provided person is conscious. Seek immediate medial assistance.
   Inhalation
remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Seek immediate medial assistance.
   Skin
Immediately wash with soap and copious amounts of water. Seek immediate medial assistance.
   Eyes
Immediately flush with copious amounts of water for at least 15 minutes. Seek immediate medial assistance.

Transport.