MEK

MEK most commonly refers to methyl ethyl ketone, also known as 2-butanone, a colorless, flammable solvent used in coatings, adhesives, printing inks, and industrial cleaners. It is valued for its solvency and relatively quick evaporation, making it a versatile ingredient in many manufacturing processes.

Its chemical formula is C4H8O, and it is produced industrially by the oxidation of secondary butanol. MEK has a boiling point around 80°C and is compatible with a wide range of organic solvents, enabling it to dissolve numerous resins, oils, and plastics. Because of its volatility and solvent power, it is subject to safety and regulatory controls in occupational settings.

Health and safety considerations include irritation to the eyes, skin, and respiratory tract upon exposure. Inhalation or high-level exposure can affect the central nervous system, causing dizziness, headaches, or drowsiness. MEK is a flammable liquid and is regulated under occupational exposure limits in many jurisdictions. Proper ventilation, personal protective equipment, and handling protocols are recommended to minimize risks.

MEK also stands for Mujahedin-e-Khalq, an Iranian political-militant organization founded in 1965. It originated as a movement opposing the Shah and later opposed the Islamic Republic, and at times operated from exile with bases in various countries, including Iraq during the 1980s. The group has been controversial and has faced designation as a terrorist organization by some governments and international bodies in different periods. Its political front is the National Council of Resistance of Iran, which advocates for broader sanctions on Iran and political change. Given the complexities and changing statuses of the MEK, readers are advised to consult current regional sources for the latest designations.