| Identification | More | [Name]
Methyl vinyl ketone | [CAS]
78-94-4 | [Synonyms]
1-BUTEN-3-ONE
1-PENTEN-3-ONE
3-BUTEN-2-ONE
METHYL VINYL KETONE
MVK
VINYL METHYL KETONE
1-Buten-3-on
1-Propen-3-one
2-Butenone
3-Buten-2-on
3-Buten-2-one(stab.)
3-Butene-2-one
3-Oxo-1-butene
3-Oxobutene
Acetone, methylene-
Acetyl ethylene
acetylethylene
Acetyle-thylene
But-3-en-2-one
Butenone | [EINECS(EC#)]
201-160-6 | [Molecular Formula]
C4H6O | [MDL Number]
MFCD00008777 | [Molecular Weight]
70.09 | [MOL File]
78-94-4.mol |
| Chemical Properties | Back Directory | [Description]
Methyl vinyl ketone (MVK) is a stable, highly flammable, heatand light-sensitive, and colourless liquid. It is incompatible with strong bases, strong oxidising agents, and strong reducing agents and undergoes autopolymerisation. MVK is a reactive organic compound classified as an enone. It is a colourless to yellow, flammable, highly toxic liquid with a pungent odour. It is easily soluble in water, methanol, ethanol, and acetic acid. It can act as an alkylating agent. Its alkylating ability is both the source of its high toxicity and the feature that makes it a useful intermediate in organic synthesis. It polymerises spontaneously and is used in the manufacture of plastic polymers. It is also an intermediate in the synthesis of steroids and vitamin A. | [Appearance]
Methyl vinyl ketone is a colorless liquid.
Pungent odor. | [Melting point ]
-7°C | [Boiling point ]
80 °C | [density ]
0.864 g/mL at 25 °C(lit.)
| [vapor density ]
1.3 (vs air)
| [vapor pressure ]
310 mm Hg ( 55 °C)
| [refractive index ]
n20/D 1.411(lit.)
| [Fp ]
20 °F
| [storage temp. ]
2-8°C
| [solubility ]
Chloroform (Sparingly), Methanol (Slightly) | [form ]
Liquid | [color ]
Clear colorless to pale yellow, may discolor to brown on storage | [Specific Gravity]
0.864 | [Odor]
at 100.00?%. sweet | [Stability:]
Stable. Incompatible with strong bases, strong oxidizing agents, strong reducing agents. Heat and light sensitive. May undergo autopolymerization. Highly flammable. Refrigerate. | [explosive limit]
15.64% | [Water Solubility ]
MISCIBLE | [Merck ]
14,6134 | [BRN ]
506021 | [LogP]
0.142 (est) | [CAS DataBase Reference]
78-94-4(CAS DataBase Reference) | [NIST Chemistry Reference]
Methyl vinyl ketone(78-94-4) | [EPA Substance Registry System]
78-94-4(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
F,T+,N | [Risk Statements ]
R11:Highly Flammable.
R26/27/28:Very Toxic by inhalation, in contact with skin and if swallowed .
R34:Causes burns.
R43:May cause sensitization by skin contact.
R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
R26/28:Very Toxic by inhalation and if swallowed . | [Safety Statements ]
S16:Keep away from sources of ignition-No smoking .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S28:After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer) .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S60:This material and/or its container must be disposed of as hazardous waste .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
S38:In case of insufficient ventilation, wear suitable respiratory equipment . | [RIDADR ]
UN 1251 6.1/PG 1
| [WGK Germany ]
3
| [RTECS ]
EM9800000
| [F ]
8-10-19-23 | [TSCA ]
Yes | [HazardClass ]
6.1 | [PackingGroup ]
I | [HS Code ]
29141990 | [Safety Profile]
Poison by ingestion,
inhalation, and intraperitoneal routes. A
severe irritant to skin, eyes, and mucous
membranes. A lachrymator. Mutation data
reported. See also KETONES. Dangerous
fire hazard when exposed to heat, flame, or
oxidizers. To fight fire, use CO2, dry
chemical. When heated to decomposition it
emits acrid smoke and fumes. | [Hazardous Substances Data]
78-94-4(Hazardous Substances Data) |
| Hazard Information | Back Directory | [General Description]
A clear colorless liquid with a pungent odor. Flash point 20 °F. May polymerize with the release of heat under exposure to heat or contamination. Less dense than water. Highly toxic by inhalation. Causes burns to skin, eyes and mucous membranes. | [Reactivity Profile]
METHYL VINYL KETONE(78-94-4) is incompatible with strong oxidizers and strong bases. METHYL VINYL KETONE(78-94-4) polymerizes spontaneously upon exposure to heat or sunlight. This polymerization may cause violent ruptures in containers. . | [Air & Water Reactions]
Highly flammable. Miscible with water. Unstable in the presence of heat, light and air. | [Health Hazard]
This material is readily absorbed through the skin, causing general poisoning, similar to other ketones; inhalation has central nervous system depressant effects. It is irritating to mucous membranes and respiratory tract and to the skin; it is a lachrymator and can cause eye injury. | [Potential Exposure]
Methyl vinyl ketone is used as an
alkylating agent, a starting material for plastics; and an
intermediate in the synthesis of steroids and Vitamin A. | [Fire Hazard]
Vapors form flammable mixtures with air, and may travel a considerable distance to a source of ignition and flash back. Polymerization may take place in containers, possibly with violent rupture of containers. Upon exposure to heat or flame, METHYL VINYL KETONE emits toxic and irritating fumes. Container may explode in heat of fire. Vapor explosion and poison hazard indoors, outdoors, or in sewers. Polymerizes on standing. Hazardous polymerization may occur. Avoid heat or sunlight. | [First aid]
If this chemical gets into the eyes, remove any
contact lenses at once and irrigate immediately for at least
15 minutes, occasionally lifting upper and lower lids. Seek
medical attention immediately. If this chemical contacts the
skin, remove contaminated clothing and wash immediately
with soap and water. Seek medical attention immediately.
If this chemical has been inhaled, remove from exposure,
begin rescue breathing (using universal precautions, including
resuscitation mask) if breathing has stopped and CPR if
heart action has stopped. Transfer promptly to a medical
facility. When this chemical has been swallowed, get medical
attention. Give large quantities of water and induce
vomiting. Do not make an unconscious person vomit.
Medical observation is recommended for 24 to 48 hours
after breathing overexposure, as pulmonary edema may be
delayed. As first aid for pulmonary edema, a doctor or
authorized paramedic may consider administering a drug or
other inhalation therapy. | [Shipping]
UN1251 Methyl vinyl ketone, stabilized, Hazard
class: 6.1; Labels: 6.1-Poison Inhalation Hazard,
3-Flammable liquid, 8-Corrosive material, Inhalation Zone A. | [Incompatibilities]
Vapors may form explosive mixture with
air. Heat or shock may cause explosive polymerization.
Incompatible with oxidizers (chlorates, nitrates, peroxides,
permanganates, perchlorates, chlorine, bromine, fluorine,
etc.); contact may cause fires or explosions. Keep away
from alkaline materials, strong bases, strong acids,
oxoacids, epoxides, nitrated amines, azo, diazo, azido
compounds, carbamates, organic cyanates. | [Chemical Properties]
Colourless liquid. Soluble in water and alcohols.
| [Chemical Properties]
Methyl vinyl ketone is a colorless liquid.
Pungent odor. | [Uses]
Alkylating agent; commercial starting material for plastics; as intermediate in the synthesis of steroids and vitamin A. | [Definition]
ChEBI: A methyl ketone that is butan-2-one with an unsaturation at position 3. | [storage]
Color Code—Blue: Health Hazard/Poison: Storein a secure poison location. Prior to working with thischemical you should be trained on its proper handling andstorage. Before entering confined space where this chemicalmay be present, check to make sure that an explosive concentration does not exist. Protect against physical damage.Outside or detached storage is preferred. Inside storageshould be in a standard flammable liquids storage room.Separate from oxidizing materials. MVK vapors are uninhibited and may form polymers in the flame arresters ofstorage tanks, resulting in stoppage of vent. | [Purification Methods]
It forms an 85% azeotrope with water. After drying with K2CO3 and CaCl2 (with cooling), the ketone is distilled at low pressures. [Beilstein 1 IV 3444.] |
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