Methyl vinyl ketone
- Methylene acetone
- Acetyl ethylene
Colorless to light yellow liquid with strong odor, lachrymator.
Alkylating agent, commercial starting material for plastics, as intermediate in synthesis of steroids & vitamin a.
Registry Numbers and Inventories.
highly flammable, very toxic, corrosive, carcinogenic,&
R 11 26/28 34
S 16 26 28 36/37/39 45
Japan ENCS (MITI)
Melting point, °C
Boiling point, °C
Vapor pressure, mmHg
84 (25 C)
Vapor density (air=1)
160,000 ppm at 34 C (calc.)
Odor Threshold Odor threshold 0.5 mg/m3
0.8636 g/cm3 (20 C))g/cm3 (20 C)
Solubility in water
0.807 cp at 70 deg f
1.4086 (20 C)
Partition coefficient, pKow
Heat of vaporization
Heat of combustion
Hazards and Protection.
Store in a cool, dry, well-ventilated location. Store away from heat, oxidizing materials, and sunlight. Separate from alkalies, reducing agents. Outside or detached storage is preferred.
B2 D1A E
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.
Wear appropriate protective gloves, clothing and goggles.
Wear positive pressure self-contained breathing apparatus (SCBA).
Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Build dikes to contain flow as necessary. Attempt to stop leak if without undue personnel hazard. Use water spray to disperse vapors and dilute standing pools of liquid. Apply water spray or mist to knock down vapors. Land spill: Dig a pit, pond, lagoon, holding area to contain liquid or solid material. Dike surface flow using soil, sand bags, foamed polyurethane, or foamed concrete. Absorb bulk liquid with fly ash, cement powder, or commercial sorbents. Water spill: Use natural barriers or oil spill control booms to limit spill travel. Remove trapped material with suction hoses.
Polymerizes on standing.
Incompatible with strong oxidizers and strong bases.
Upper exp. limit, %
Lower exp. limit, %
Use water to keep fire-exposed containers cool. Keep unnecessary people away; isolate hazard area and deny entry. Stay upwind; keep out of low areas. Wear positive pressure breathing apparatus and special protective clothing. Isolate for 1/2 mile in all directions if tank car or truck is involved in fire.Use dry chemical, alcohol foam, or carbon dioxide. Water spray may be ineffective as an extinguishing agent. Small fires: dry chemical, carbon dioxide, and foam. Large fires: fog or foam. Move container from fire area if you can do so without risk. Dike fire control water for later disposal; do not scatter the material. Spray cooling water on containers that are exposed to flames until well after fire is out. Withdraw immediately in case of rising sound from venting safety device or any discoloration of tank due to fire.
Dangerous, when exposed to heat, flame or oxidizers. Flammable liquid.
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, it 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.
Dangerous, upon exposure to heat or flame; emits toxic and irritating fumes..
Reduced body temperature may be noted. Inhalation of high concentrations of ketones produce CNS depressant effects, including headache, dizziness, fainting, tremor, incoordination, lowered body temperature, depressed respirations and heart rate, dyspnea, gasping, coma, and death. Skin exposure to vapor or liquid may result in paresthesia of affected areas. No data were available to assess the teratogenic potential of this agent. <br>No data were available to assess the potential effects of exposure to this agent during pregnancy or lactation. <br>No information about possible male reproductive effects was found in available references.
May be fatal. May cause irritatior or burns. Vapors may cause dizziness or suffocation.
Skin exposure to vapor or liquid may result in dermatoses and paresthesia of affected area. Methyl vinyl ketone can be readily absorbed through the skin, and is severely irritating to the skin (sometimes causing blistering).
Do not induce emesis - dilution: following ingestion and/or prior to gastric evacuation, immediately dilute with 4 to 8 ounces (120 to 240 ml) of milk or water (not to exceed 15 ml/kg in a child). The possible benefit of early removal of some ingested material by cautious gastric lavage must be weighed against potential complications of bleeding or perforation.
Move patient to fresh air. Monitor for respiratory distress. If cough or difficulty breathing develops, evaluate for respiratory tract irritation, bronchitis, or pneumonitis. Administer oxygen and assist ventilation as required. Treat bronchospasm with beta2 agonist and corticosteroid aerosols.
Remove and isolate contaminated clothing and shoes. In case of contact with substance, immediately flush with running water for at least 20 minutes. Wash skin with soap and water.
In case of contact with substance, immediately flush with running water for at least 20 minutes.
USCG CHRIS Code
2914 19 90
Std. Transport #