Acetonic acid

  • 2-Methyllactic acid
  • 2-Hydroxyisobutyric acid
  • Hydroxydimethylacetic acid
  • 2-Hydroxy-2-methylpropionic acid
  • -Hydroxy-2-methylpropanoic acid
Formula
C4H8O3
Structure
Description
White powder.

Registry Numbers and Inventories.
CAS
594-61-6
EC (EINECS/ELINCS)
209-848-8
EC Class
irritant
R 36/37/38
Beilstein/Gmelin
1744739
Beilstein Reference
4-03-00-00782
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C4H8O3
Formula mass
104.11
Melting point, °C
77
Boiling point, °C
212
Vapor pressure, mmHg
0.04 (25 C)
Solubility in water
Very soluble
pKa/pKb
4.01 (pKa)
Partition coefficient, pKow
-0.35
Heat of vaporization
52.1 kJ/mol
Heat of combustion
-1976 kJ/mol

Hazards and Protection.
Storage
Store in a cool, dry place. Keep container closed when not in use. Refrigerator (approx 4 C).
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 safety glasses and chemical goggles if splashing is possible. Skin: Wear appropriate protective gloves and clothing to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.
Respirators
Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions.
Small spills/leaks
Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal.
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Bases - oxidizing agents - reducing agents.
Decomposition
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.

Fire.
Flash Point,°C
105
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.
Exposure effects
The toxicological properties of this material have not been investigated.

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.
   Skin
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.

Transport.
HS Code
2918 19 80