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Technical Data Sheet
Eastman™ Isobutanol

  • Architectural coatings
  • Auto OEM
  • Auto plastics
  • Auto refinish
  • Furniture
  • General industrial coatings
  • Graphic arts
  • Hard surface care
  • Industrial fuel imeds
  • Packaging components non food contact
  • Paints & coatings
  • Process solvents
  • Protective coatings
  • Water treatment industrial
  • Wood coatings
Key Attributes
  • Excellent reactivity as an intermediate
  • Improves flow and gloss in cellulose lacquers and amino baking finishes
  • Inert - Food use with limitations
  • Inert - Nonfood use
  • Latent solvent in cellulose lacquers
  • Non-HAP
  • Non-SARA
  • Readily biodegradable
  • Slow evaporation rate

Product Description

Eastman™ Isobutanol (isobutyl alcohol) is a medium boiling, slow evaporating, colorless liquid that is useful in organic synthesis, as a chemical intermediate and as a solvent in coating applications. Isobutanol is similar in properties to n-butyl alcohol and may be used as a supplement or replacement for it in many applications. As a latent solvent in lacquers and ambient-cured enamels, isobutanol is effective in reducing the viscosities of many formulations while simultaneously promoting flow and leveling. It is also used as an etherification alcohol in the manufacture of amino resins that are used as curing agents in baking and physical-drying finishes.

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 Acid0.003 wt % max.
Assay99.5 wt % min.
Autoignition Temperature416 °C (781 °F)
     BP89.8 °C (193.6 °F)
     Wt % Water33 wt %
Boiling Point 
     @ 760 mm Hg106-109 °C (223-228 °F)
     Pt-Co5 max.
Critical Pressure 41.2 ATM
Critical Temperature262.8 °C
Critical Volume269 ml/g·mol
Electrical Resistance<0.2 Megohms
Empirical FormulaC4H10O
Evaporation Rate 
     (ether = 1)20.2
     (n-butyl acetate = 1)0.6
Expansion Coefficient, per °C 
     @ 20°C0.00096
Flammability Limits in Air, % by Volume 
     Lower @ 51°C1.7 Vol %
     Upper @ 94°C10.6 Vol %
Flash Point 
     Tag Closed Cup29 °C (85 °F)
Freezing Point-108 °C (-162 °F)
Hansen Solubility Parameters 
     Hydrogen Bonding7.8
Heat of Combustion-583.4 kcal/g·mol
Heat of Vaporization9834 cal/g·mol
Liquid Heat Capacity 
     @ 25°C42.92 cal/(g*mol)(°C)
Liquid Viscosity 
     @ 20°C4 cP (mPa·s)
Maximum Incremental Reactivity (MIR)2.24
Molecular Weight74.12
Nitrocellulose SolubilityLatent
Refractive Index 
     @ 20°C1.4
Specific Gravity 
     @ 20°C/20°C0.8
     in Water, @ 20°C9.5 wt %
     Water in, @ 20°C14.3 wt %
Surface Tension 
     @ 20°C22.8 dynes/cm
Vapor Density 
     (air = 1)2.6
Vapor Pressure 
     @ 20°C9 mm Hg
     @ 55°C9.5 kPa
TLV PPM 199850
     @ 20°C0.80 kg/L (6.68 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 12:19:01 PM