Methyl vinyl sulfone

  • (Methylsulfonyl)ethene
  • Vinyl methyl sulfone
  • Ethene, (methylsulfonyl)-
Formula
C3H6O2S
Structure
Description
Clear pale yellow liquid.

Registry Numbers and Inventories.
CAS
3680-02-2
EC (EINECS/ELINCS)
222-958-0
EC Class
very toxic, irritant
R 22 27 41
S 26 28 36/37/39 45
RTECS
WR6825000
RTECS class
Mutagen; Primary Irritant
UN (DOT)
2810
Beilstein/Gmelin
878198
Beilstein Reference
4-01-00-02065
Swiss Giftliste 1
G-3869
New Zealand
Listed

Properties.
Formula
C3H6O2S
Formula mass
106.15
Boiling point, °C
122
Vapor density (air=1)
3.66
Density
1.2117 g/cm3 (20 C)
Solubility in water
Very soluble
Refractive index
1.464 (20 C)
Partition coefficient, pKow
-0.27

Hazards and Protection.
Storage
Store in a tightly closed container. Store in a dry area. Refrigerator (approx 4 C).
Handling
Wash thoroughly after handling. Wash hands before eating. Do not breathe dust, vapor, mist, or gas. Do not get in eyes, on skin, or on clothing. Do not get on skin or in eyes. Use only in a chemical fume hood. Discard contaminated shoes.
Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, using the appropriate protective equipment. Provide ventilation.
Stability
Stable at room temperature in closed containers under normal storage and handling conditions.
Incompatibilities
Strong oxidizing agents.
Decomposition
Carbon monoxide, oxides of sulfur, irritating and toxic fumes and gases, carbon dioxide.

Fire.
Flash Point,°C
>109
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Containers may explode when heated. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam. Cool containers with flooding quantities of water until well after fire is out.
Fire potential
This chemical is probably 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
4
 
Flammability
1
 
 
Reactivity
0
 

Health.
Poison_Class
4
Exposure effects
   Ingestion
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May be harmful if swallowed.
   Inhalation
May cause respiratory tract irritation. Vapors may cause dizziness or suffocation.
   Skin
Causes mild skin irritation. May be fatal if absorbed through the skin.
   Eyes
May cause eye irritation and possible damage.

First aid
 
   Ingestion
Do NOT induce vomiting. Never give anything by mouth to an unconscious person. Get medical aid immediately. If conscious drink water, then induce vomiting. If unconscious, immediately take victim to a physician and do NOT attempt to induce vomiting. Wash mouth out with water.
   Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately. If breathing is difficult, give oxygen. DO NOT use mouth-to-mouth respiration. If breathing has ceased apply artificial respiration using oxygen and a suitable mechanical device such as a bag and a mask.
   Skin
Get medical aid immediately. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. Destroy contaminated shoes.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

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