Vinyl methyl ether

  • Methyl vinyl ether
  • Methoxyethene
Formula
C3H6O
Structure
Description
A colorless gas with a sweet, pleasant odor.
Uses
Monomer for copolymers used in coatings & lacquers, modifier for alkyl, polystyrene & ionomer resins, plasticizer for nitrocellulose & adhesives.

Registry Numbers and Inventories.
CAS
107-25-5
EC (EINECS/ELINCS)
203-475-4
EC Index Number
603-021-00-9
EC Class
Extremely flammable
RTECS
KO2300000
RTECS class
Reproductive Effector
UN (DOT)
1087
Beilstein/Gmelin
1209255
Beilstein Reference
4-01-00-02049
Swiss Giftliste 1
G-5955
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C3H6O
Formula mass
58.09
Melting point, °C
-122.2
Boiling point, °C
6
Vapor pressure, mmHg
1500 (25 C)
Vapor density (air=1)
2.0
Critical temperature
187
Critical pressure
46
Density
0.777 g/cm3 (20 C)
Solubility in water
Very soluble
Surface tension
10 g/s2
Refractive index
1.3730 (0 C)
Partition coefficient, pKow
0.51
Heat of vaporization
24.4 kJ/mol
Heat of combustion
-1922 kJ/mol

Hazards and Protection.
Storage
Grounding and bonding required. Store in a well-ventilated area. Avoid contact with light. Store in a tightly closed container. Keep separated from incompatible substances.
Handling
Handle in accordance with all current regulations and standards. Subject to storage regulations: U.S. OSHA 29 CFR 1910.101. Grounding and bonding required.
Protection
Organic-vapor mask; plastic or rubber gloves; safety glasses.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Attempt to stop leak if without undue personnel hazard. Use water spray to knock-down vapors.
Stability
Polymerizes easily.
Incompatibilities
React vigorously with oxidizing materials.
Decomposition
When heated to decomposition it emits acrid smoke and irritating fumes.

Fire.
Flash Point,°C
-56
Autoignition, °C
287
Upper exp. limit, %
39
Lower exp. limit, %
2.6
Fire fighting
Do not extinguish fire unless flow can be stopped. Use water in flooding quantities as fog. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible.
Fire potential
Very dangerous; can react vigorously with oxidizing materials. Extremely flammable.
Hazards
Containers may explode. Vapor is heavier than air and may travel a considerable distance to a source of ignition and flash back.
Combustion products
Fire may produce irritating and/or toxic gases.
Health
2
 
Flammability
4
 
 
Reactivity
2
 

Health.
Poison_Class
4
Exposure effects
Central nervous system depression could occur from anesthetic effects.
   Ingestion
Seek medical attention.
   Inhalation
Respiratory tract irritation has not been reported, but may be predicted from other irritant properties.
   Skin
Skin irritation may be noted.
   Eyes
Eye, nose, and throat irritation may be seen.

First aid
 
   Ingestion
Do NOT induce vomiting, get medical attention.
   Inhalation
Remove victim to fresh air; if breathing is difficult, administer oxygen; call physician.
   Skin
Wash with copious quantities of water; treat frostbite by use of warm water or blankets.
   Eyes
Wash with copious quantities of water; consult an eye specialist.

Transport.
UN number
1087
Response guide
Hazard class
2.1
USCG CHRIS Code
VME
 
13 Vinyl acetate
Std. Transport #
4905795