Methyl isobutyl ketone (MIBK) is the organic compound with the formula (CH3)2CHCH2C(O)CH3. This colorless liquid, a ketone, is used as a solvent for gums, resins, paints, varnishes, lacquers, and nitrocellulose.

Methyl Isobutyl Ketone (MIBK) is a colorless, flammable liquid with a mild, sweet odor. It is widely used as a solvent in paints, coatings, adhesives, and chemical synthesis due to its excellent solvency, medium evaporation rate, and low water miscibility.

CAS Number:  108-10-1
Chemical Name: Methyl Isobutyl Ketone
Other Names: MIBK, 4-Methyl-2-pentanone
Chemical Formula: C₆H₁₂O
Molecular Weight: 100.16 g/mol
Appearance: Clear, colorless liquid
Odor: Mild, sweet, ketone-like odor
Solubility: Slight (1.9 g/100 mL at 25°C)
Boiling Point: ~116°C (240.8°F)
Melting Point: –80°C
Density: ~0.801 g/cm³ at 20°C
Flash Point: ~14°C (closed cup)
Vapor Pressure: ~15 mmHg at 20°C

Application in areas:

  • Adhesives
  • Degreaser
  • Dewaxing
  • Agricultural Herbicides
  • Paint & Coatings
  • Plastics
  • Synthetic leather
  • Synthetic resins

Packaging: Drum