a-Methylbutyrolactone

  • a-Methyl-g-butyrolactone
  • Dihydro-3-methyl-2(3H)-furanone
  • 4-Hydroxy-2-methylbutyric acid lactone
  • 3-Methyl-2-oxooxolane
Formula
C5H8O2
Structure

Registry Numbers and Inventories.
CAS
1679-47-6
EC (EINECS/ELINCS)
216-846-0
23 24/25
Beilstein/Gmelin
80418
Beilstein Reference
5-17-09-00028
New Zealand
Listed

Properties.
Formula
C5H8O2
Formula mass
100.12
Boiling point, °C
197
Vapor pressure, mmHg
0.39 (25 C)
Density
1.05 g/cm3 (20 C)
Solubility in water
Very soluble
Refractive index
1.4311 (20 C)
pKa/pKb
43.3 kJ/mol

Hazards and Protection.
Storage
Keep tightly closed. Keep away from heat and open flame. Store in a cool dry place.
Protection
Rubber gloves. Chemical safety goggles.
Respirators
Government approved respirator.
Small spills/leaks
Absorb on sand or vermiculite and place in closed containers for disposal. Ventilate area and wash spill site after material pickup is complete.
Incompatibilities
Strong oxidizing agents, Strong acids, Strong bases, Strong reducing agents.
Decomposition
Carbon monoxide, Carbon dioxide.

Fire.
Flash Point,°C
73
Fire fighting
Extinguish using Water spray. Carbon dioxide, dry chemical powder, or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.

Health.
Exposure effects

First aid
 
   Ingestion
If swallowed, wash out mouth with water provided person is conscious. Call a physician.
   Inhalation
If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.
   Skin
In case of contact, immediately wash skin with soap and copious amounts of water.
   Eyes
In case of contact, immediately flush eyes with copious amounts of water for at least 15 minutes.

Transport.