2-Acetylbutanolide

  • 2-Acetylbutyrolactone
  • Dihydro-3-acetyl-2(3H)-furanone
  • 3-Acetyldihydro-2(3H)-furanone
  • 3-Acetyl-4,5-dihydro-2(3H)-furanone
  • 3-Acetyltetrahydro-2-furanone
  • 2-Oxo-3-acetyltetrahydrofuran
Formula
C6H8O3
Structure
Description
Clear colorless to faint yellow liquid. Ester-like odor.

Registry Numbers and Inventories.
CAS
517-23-7
EC (EINECS/ELINCS)
208-235-2
EC Class
irritant
R 36/37/38
Merck
13,85
Beilstein/Gmelin
112676
Beilstein Reference
5-17-11-00016
Swiss Giftliste 1
G-5571
Canada DSL/NDSL
NDSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C6H8O3
Formula mass
128.12
Boiling point, °C
107
Density
1.174 g/cm3 (18 C)
Solubility in water
Very soluble
Refractive index
1.4562 (20 C)
pKa/pKb
11.99 (pKa)

Hazards and Protection.
Storage
Store in a cool, dry place. Keep container closed when not in use.
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.
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 and clothing to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.
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. Clean up spills immediately, using the appropriate protective equipment.
Disposal code
1
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidants.
Decomposition
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.

Fire.
Flash Point,°C
135
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.

Health.
Poison_Class
3
Exposure effects
   Ingestion
Causes gastrointestinal irritation with nausea, vomiting and diarrhea.
   Inhalation
Causes respiratory tract irritation.
   Skin
Causes skin irritation.
   Eyes
Causes eye irritation.

First aid
 
   Ingestion
Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
   Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.
HS Code
2932 29 80