Divinyl sulfone

  • Vinyl sulfone
Formula
(CH2=CH)2SO2
Structure
Description
Clear colorless liquid.
Uses
Etherization of cotton by divinyl sulfone and its precursors also forms the basis for a large class of fiber-reactive dyestuffs

Registry Numbers and Inventories.
CAS
77-77-0
EC (EINECS/ELINCS)
201-057-6
EC Class
very toxic, corrosive
R 25 27 34
S 26 36/37/39 45
RTECS
KM7175000
RTECS class
Drug; Primary Irritant
UN (DOT)
2810
Beilstein/Gmelin
1071329
Beilstein Reference
4-01-00-02068
Swiss Giftliste 1
G-3949
Austrailia AICS
Listed
New Zealand
Listed

Properties.
Formula
C4H6O2S
Formula mass
118.16
Melting point, °C
-26
Boiling point, °C
234.3
Density
1.1821 g/cm3 (17 C)
Solubility in water
Miscible
Refractive index
1.48 (15.5 C)

Hazards and Protection.
Storage
Refrigerator (approx 4 C).
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protection
If Tyvek-type disposable protective clothing is not worn during handling of this chemical, wear disposable Tyvek-type sleeves taped to your gloves.
Respirators
Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions.
Small spills/leaks
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container.
Disposal code
9
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents.
Decomposition
Carbon monoxide, oxides of sulfur, carbon dioxide.

Fire.
Flash Point,°C
102
Fire fighting
Fires involving this material can be controlled with a dry chemical, carbon dioxide or Halon extinguisher.
Fire potential
This chemical is combustible.
Hazards
When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Poison_Class
2
Exposure effects
   Ingestion
Gastrointestinal irritation with possible fluid shifts could occur.
   Inhalation
Inhalation could produce mucous membrane irritation.
   Skin
Direct skin contact can produce severe burns.
   Eyes
Causes burns.

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
Remove from exposure to fresh air immediately.
   Skin
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

Transport.
UN number
2810
Response guide
Hazard class
6.1
Packing Group
I; II; III
 
HS Code
2930 90 70