Methyl Ethyl Ketone (MEK), also known as Butanone, is a colorless liquid with a molecular weight of 72.11 g/mol. It has a melting point of -86 °C, a boiling point of 79.6 °C, and a density of 0.805 g/cm³. MEK is widely used in industries such as paints and coatings, adhesives, printing inks, and chemical manufacturing. It serves as a solvent for paints, varnishes, adhesives, cleaning agents, and as a chemical intermediate.