Butanone, also known as methyl ethyl ketone or MEK, is an organic compound with the formula CH3C(O)CH2CH3. This colourless liquid ketone has a sharp, sweet odour reminiscent of butterscotch and acetone. It is produced industrially on a large scale, and also occurs in trace amounts in nature. It is soluble in water and is commonly used as an industrial solvent. It is an effective and common solvent used in processes involving gums, resins, cellulose acetate and nitrocellulose coatings and in vinyl films.

Use in the manufacture of plastics, textiles
Production of paraffin wax
Found in household products such as lacquer, varnishes, paint remover,
A denaturing agent for denatured alcohol, glues,
As a cleaning agent
As butanone dissolves polystyrene, it is sold as “polystyrene cement” for use in connecting together parts of scale model kits.

Minimum Assay: >99.7%
Molecular Formula: C2H5COCH3
Molecular Weight: 72.11
Vapour Pressure: 71 mmHg (20°C)
Melting Point: -87°C
Boiling Point: 80°C
Refractive Index: 1.3785

Hazard Class: 3

Packing Group: 2

Hazard Phrases: Highly flammable liquid and vapour. Causes serious eye irritation. May cause drowsiness or dizziness. Repeated exposure may cause skin dryness or cracking.

Prec Phrases: Keep away from heat/sparks/open flames/hot surfaces. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. In case of fire: Use Store in a well-ventilated place. Keep container tightly closed.



Cas No: 78-93-3
Einecs No: 201-159-0
UN1193
FP: 14