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Technical Data Sheet
Eastman™ DIBK

  • Auto OEM
  • Auto refinish
  • Commerical printing inks
  • General industrial coatings
  • Paints & coatings
  • Process solvents
Key Attributes
  • Good solvent activity
  • High blush resistance
  • Inert - Nonfood use
  • Low density
  • Low surface tension
  • Low water solubility
  • Non-HAP
  • Non-SARA
  • REACH compliant
  • Readily biodegradable
  • Slow evaporation rate

Product Description

Eastman™ DIBK (Diisobutyl Ketone) is a slow evaporating, low density solvent that has good activity for many synthetic resins including nitrocellulose, rosin esters, phenolics, hydrocarbons, alkyds, polyesters, and acrylics. It is useful as a retarder solvent to improve flow and minimize humidity blushing. The low density and low surface tension of DIBK enables formulators to develop high-solids coatings with low VOC content and excellent flow and leveling properties.

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

Typical Properties

PropertyTypical Value, Units
     as Acetic Acid0.02 wt % max.
Assay90 % min (mixture )
Autoignition Temperature396 °C (745 °F)
     BP97 °C (206.6 °F)
     Wt % Water51.9 wt %
Blush Resistance 
     @ 80°F (26.7°C)95 % RH
Boiling Point @ 760 mm Hg 
     Dry Point176 °C (348 °F)
     Initial163 °C (325 °F)
     Pt-Co20 max.
Critical Pressure 24.5 ATM
Critical Temperature341.8 °C
Critical Volume522 ml/g·mol
Dilution Ratio 
     VMP Naphtha0.8
Electrical Resistance0.4 Megohms
Empirical FormulaC9H18O
Evaporation Rate 
     (ether = 1)60.5
     (n-butyl acetate = 1)0.2
Expansion Coefficient, per °C 
     @ 20°C0.00102
Flash Point 
     Tag Closed Cup49 °C (120 °F)
Freezing Point-42 °C (-43 °F)
Hansen Solubility Parameters 
     Hydrogen Bonding2
Heat of Combustion-1269 kcal/g·mol
Heat of Vaporization9458 cal/g·mol
Liquid Heat Capacity 
     @ 49°C70.79 cal/(g*mol)(°C)
Liquid Viscosity 
     @ 20°C1 cP (mPa·s)
Molecular Weight142.23
Nitrocellulose SolubilityActive
Refractive Index 
     @ 20°C1.415
Specific Gravity 
     @ 20°C/20°C0.811
     in Water, @ 20°C0.05 wt %
     Water in, @ 20°C0.7 wt %
Surface Tension 
     @ 20°C24.6 dynes/cm
TLV PPM 199825
Vapor Density 
     (air = 1)4.9
Vapor Pressure 
     @ 20°C1.4 mm Hg
     @ 55°C1.4 kPa
     @ 20°C0.81 kg/L (6.76 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.

4/3/2018 3:43:08 PM