Methyl Ethyl Ketone (MEK)
Butanone, 2-Butanone
What is Methyl Ethyl Ketone (MEK)?
Methyl ethyl ketone (MEK) is a colorless, volatile organic solvent with the chemical formula C4H8O and a pungent odor. It belongs to the ketones group and is also known as butanone or 2-butanone.
MEK is one of the most widely used ketones in industry. It serves as a solvent in the paint, varnish, adhesive, resin, plastic, textile, printing ink, automotive, and electronics sectors. It is preferred due to its high evaporation rate and strong solubility.
MEK, which is flammable, may pose health and environmental risks if used without appropriate safety precautions. Therefore, professional standards must be observed during storage and use.
Methyl Ethyl Ketone (MEK) Properties
Property | Explanation |
Physical State | Colorless, clear liquid |
Chemical Formula | C4H8O |
Molecular Weight | 72.11 g/mol |
Packaging Type | Drum / IBC / Tank |
Group | Ketone |
Resolution | Insoluble in oil, miscible with water and many solvents |
Evaporation Rate | High |
Flammability | Flammable, volatile |
In Which Industries Is Methyl Ethyl Ketone (MEK) Used?
- Paint and Coating Industry:
MEK is used as a solvent in paint, varnish, and coating products. It is also effective in removing paint and coatings from surfaces. - Adhesive and Resin Industry:
It is preferred as a powerful solvent in the production of various adhesives and resins. - Plastics Industry:
Widely used in the production of plastics and surface cleaning. - Printing Industry:
It acts as a solvent in printing inks. - Textile Industry:
Used in the dyeing and printing of fabrics. - Electronics Industry:
Used for cleaning electronic components and circuit boards. - Automotive Industry:
Preferred for preparing and cleaning vehicle paint and coatings.
How is Methyl Ethyl Ketone (MEK) Produced?
MEK production generally occurs as a petrochemical byproduct. The process consists of the following stages:
- Oxidation:
- n-Butanol and propylene are subjected to an oxidative reaction with the aid of a catalyst.
- This reaction produces MEK and water.
- Separation:
- The gas mixture containing MEK and water is cooled and converted into a liquid phase.
- Then MEK and water separate into distinct phases.
- Purification:
- MEK is purified by vacuum distillation, washing, and drying processes.
- As a result, high-purity MEK suitable for industrial use is obtained.
Although alternative methods exist, this oxidation-based method is the most commonly used production process in the industry.