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Technical Data Sheet
Eastman™ Methyl Isobutyl Ketone

  • Aerospace
  • Agriculture intermediates
  • Architectural coatings
  • Auto OEM
  • Auto plastics
  • Auto refinish
  • Automotive
  • Automotive protective coatings
  • Commerical printing inks
  • Furniture
  • General industrial coatings
  • Graphic arts
  • Gravure printing inks
  • Industrial maintenance
  • Intermediates
  • Marine
  • Paints & coatings
  • Polymer modification
  • Process solvents
  • Protective coatings
  • Wood coatings
Key Attributes
  • Excellent solvent activity
  • High dilution ratio
  • Inert - Food use with limitations
  • Inert - Nonfood use
  • Low density
  • Low surface tension
  • Low water miscibility
  • Medium evaporation rate
  • Readily Biodegradable

Product Description

Eastman Methyl Isobutyl Ketone (MIBK) is a medium-evaporating solvent. It is an active solvent for many synthetic resins including cellulosics, vinyl copolymers, acrylics, alkyds, polyesters, and epoxies. It is very useful in developing high-solids coatings because of its combination of high solvent activity and low density.

In addition to its use as a solvent for inks, coatings, and adhesives, MIBK is used as an extraction agent in the dewaxing and deoiling of petroleum products. It is also used in the manufacture of germicides, fungicides, pharmaceuticals, electroplating solutions, and as a denaturant in many ethanol formulations.

The chemical substances for this product are listed as Inert Ingredients Permitted for Use in Nonfood Use Pesticide Products, and in Food Use Pesticide Products with limitations, under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA). For details on specific permissions, click here.

Typical Properties

PropertyTypical Value, Units
     as Acetic Acid0.01 wt % max.
Assay99.0 wt % min.
Autoignition Temperature449 °C (840 °F)
     BP87.9 °C (190.2 °F)
     Wt % Water24.3 wt %
Blush Resistance 
     @ 80°F (26.7°C)78 % RH
Boiling Point @ 760 mm Hg 
     Dry Point117 °C (243 °F)
     Initial114 °C (237 °F)
     Pt-Co15 max.
Critical Pressure 32.3 ATM
Critical Temperature298.2 °C
Critical Volume369 ml/g·mol
Dilution Ratio 
     VMP Naphtha1
Electrical Resistance0.4 Megohms
Empirical FormulaC6H12O
Evaporation Rate 
     (ether = 1)7.6
     (n-butyl acetate = 1)1.6
Expansion Coefficient, per °C 
     @ 20°C0.00115
Flash Point 
     Tag Closed Cup16 °C (60 °F)
Freezing Point-84 °C (-119 °F)
Hansen Solubility Parameters 
     Hydrogen Bonding4.1
Heat of Combustion-834.1 kcal/g·mol
Heat of Vaporization8324 cal/g·mol
Liquid Heat Capacity 
     @ 25°C51.53 cal/(g*mol)(°C)
Liquid Viscosity 
     @ 20°C0.6 cP (mPa·s)
Maximum Incremental Reactivity (MIR)4.31
Molecular Weight100.16
Nitrocellulose SolubilityActive
Refractive Index 
     @ 20°C1.3958
Specific Gravity 
     @ 20°C/20°C0.802
     in Water, @ 20°C2 wt %
     Water in, @ 20°C1 wt %
Surface Tension 
     @ 20°C23.6 dynes/cm
TLV PPM 199850
Vapor Density 
     (air = 1)3.5
Vapor Pressure 
     @ 20°C15 mm Hg
     @ 55°C11.7 kPa
Water0.10 wt % max.
     @ 20°C0.8 kg/L (6.67 lb/gal)

Properties reported here are typical of average lots. Eastman makes no representation that the material in any particular shipment will conform exactly to the values given.

Eastman and its marketing affiliates shall not be responsible for the use of this information, or of any product, method, or apparatus mentioned, and you must make your own determination of its suitability and completeness for your own use, for the protection of the environment, and for the health and safety of your employees and purchasers of your products. No warranty is made of the merchantability of fitness of any product, and nothing herein waives any of the Seller's conditions of sale.

8/6/2021 12:58:26 PM