Appearance：white crystals or powder
Stability：Stable. Incompatible with strong oxidizing agents. Combustible.
Storage Condition：Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Methyl ethyl ketone (MEK), CAS No. 321-60-8, is a colorless, volatile, flammable liquid with an acetone-like odor. It is miscible with water, alcohols, and many organic solvents. MEK is a versatile industrial solvent widely used in coatings, printing inks, adhesives and sealants, and as a degreaser. It is also used in the manufacture of pharmaceuticals, synthetic rubber, and pesticides.
MEK has low toxicity, but prolonged or frequent inhalation of the vapors should be avoided. Inhalation of high concentrations of MEK can cause headaches, dizziness, and irritation of the eyes, nose and throat. Skin contact can cause irritation, and the liquid can be absorbed through the skin. MEK can irritate the eyes and skin, and prolonged contact can cause skin burns and dermatitis. It is classified as a flammable liquid and can form explosive mixtures with air.
MEK is a good solvent for many organic compounds. It is used in the manufacture of paints and coatings, printing inks, adhesives and sealants, and as a degreaser. It is also used in the manufacture of pharmaceuticals, synthetic rubber, and pesticides. It is used in the production of cellulose acetate, polycarbonates, polyesters, and resins.
MEK can be used to thin and clean resins, lacquers, varnishes, oil-based paints, and adhesives. It can also be used as an extraction solvent in the manufacture of pharmaceuticals, as a degreaser, in the production of polyester polyols, and as a reactant in chemical synthesis. It is also used as a paint stripper and as a solvent for cleaning electronic equipment.