Methyl isobutyl ketone

This ketone is a colourless liquid that is used as a solvent for gums, resins, paints, varnishes, lacquers, and nitrocellulose.

Self-condensation, a type of aldol reaction, produces diacetone alcohol,[3] which readily dehydrates to give 4-methylpent-3-en-2-one (commonly, mesityl oxide).

Acetone is treated with a strongly acidic, palladium catalyst-doped cation exchange resin under medium pressure of hydrogen.

[7] Unlike the other common ketone solvents, acetone and MEK, MIBK has quite low solubility in water, making it useful for liquid-liquid extraction.

When mixed with water or isopropyl alcohol MIBK serves as a developer for PMMA electron beam lithography resist.

Skeletal formula of methyl isobutyl ketone
Ball-and-stick model of the methyl isobutyl ketone molecule
NFPA 704 four-colored diamond Health 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroform Flammability 3: Liquids and solids that can be ignited under almost all ambient temperature conditions. Flash point between 23 and 38 °C (73 and 100 °F). E.g. gasoline Instability (yellow): no hazard code Special hazards (white): no code
MIBK tank car in Europe.