Synonym(s): Biacetyl, Diacetyl
Formula: C4H6O2
Formula weight: 86.09
Purity: 99%
CAS Number: 431-03-8
UN Number: UN2346
Hazard Class: 3
Packing Group: II
Harmonized Tariff Code: 2914.19
Hazard Statements: H225-H302-H332-H315-H319
Highly flammable liquid and vapour. Harmful if swallowed. Harmful if inhaled. Causes skin irritation. Causes serious eye irritation.
Precautionary Statements: P210-P261-P303+P361+P353-P305+P351+P338-P403+P235-P501a
Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Avoid breathing dust/fume/gas/mist/vapours/spray. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Store in a well-ventilated place. Keep cool. Dispose of contents/container in accordance with local/regional/national/international regulations.
Risk Phrases: 11-20/22-36/38
Flammable. Harmful by inhalation and if swallowed. Irritating to eyes and skin.
Safety Phrases: 16-26-36/37
Keep away from sources of ignition - No Smoking. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. Wear suitable protective clothing and gloves.
Form: Clear colourless to yellow liquid
Density: 0.983
Melting point: -3°
Boiling point: 87-88°
Flash point: 10°(50°F)
Refractive Index: 1.3940
Merck: 14,2966
EINECS: 207-069-8
MDL: MFCD00008756
RTECS: EK2625000
Beilstein: 605398