Isobutanesulfonyl chloride

  • 2-Methyl-1-propanesulfonyl chloride
  • 2-Methyl-1-propylsulfonyl chloride
  • 2-Methylpropanesulfonyl chloride
  • Isobutylsulfonyl chloride
Formula
C4H9ClO2S
Structure

Registry Numbers and Inventories.
CAS
35432-36-1
26 36/37/38 45
UN (DOT)
3265
Beilstein Reference
4-04-00-00049

Properties.
Formula
C4H9ClO2S
Formula mass
156.63
Boiling point, °C
190
Vapor pressure, mmHg
0.77 (25 C)
Density
1.2014 g/cm3 (20 C)
Solubility in water
5.5 g/L (25 C)
Refractive index
1.4520 (25<sup>o</sup>C)
Partition coefficient, pKow
1.65
Heat of vaporization
40.88 kJ/mol

Hazards and Protection.
Storage
Keep container tightly closed. Store under inert gas.
Protection
Compatible chemical-resistant gloves. Chemical safety goggles. Protective clothing. Faceshield (8-inch minimum).
Respirators
se respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU). Where risk assessment shows air-purifying respirators are appropriate use a full-face respirator with multi-purpose combination (US) or type ABEK (EN 14387) respirator cartridges as a backup to engineering controls. If the respirator is the sole means of protection, use a full-face supplied air respirator.
Small spills/leaks
Cover with dry lime or soda ash, pick up, keep in a closed container, and hold for waste disposal. Ventilate area and wash spill site after material pickup is complete.
Stability
Moisture sensitive material.
Incompatibilities
Strong oxidizing agents.
Decomposition
Carbon monoxide, Carbon dioxide, Hydrogen chloride gas, Sulfur oxides.

Fire.
Flash Point,°C
72
Fire fighting
Extinguish with water spray, carbon dioxide, dry chemical powder or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
Fire potential
Combustible liquid.
Hazards
Emits toxic fumes under fire conditions.
Health
3
 
Flammability
2
 
 
Reactivity
1
 

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

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