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Technical Data Sheet
Eastman EastaPure™ n-Butyl Acetate

  • Fragrance ingredients
  • LCD displays
  • Process solvents
Key Attributes
  • Excellent resin solubility
  • High Purity/Low Trace Metals
  • High assay
  • Inert - Nonfood use

Product Description

Eastman EastaPure™ n-Butyl Acetate solvent is offered for negative and positive photoresist formulations for semiconductor chip manufacturing.

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 Acid0.01 wt % max.
Alcohol Content0.25 wt % max.
Assay99.5 % min
Autoignition Temperature407.0 °C (765 °F)
     BP90.2 °C (194.4 °F)
     Wt % Water1.2
Blush Resistance 
     @ 80°F (26.7°C)83 % RH
Boiling Point 
     @ 760 mm Hg124.0 °C (255 °F)
     Pt-Co5 max.
Critical Pressure 30.7 ATM
Critical Temperature306 °C
Critical Volume389 ml/g·mol
Dilution Ratio 
     VMP Naphtha1.2
Electrical Resistance>20 Megohms
Empirical FormulaC6H12O2
Evaporation Rate 
     (ether = 1)12.1
     (n-butyl acetate = 1)1.0
Expansion Coefficient, per °C 
     @ 20°C0.00121
Flammability Limits in Air, % by Volume 
     Lower @ 38°C1.4 Vol %
     Upper @ 38°C7.6 Vol %
Flash Point 
     Tag Closed Cup27 °C (81 °F)
Freezing Point-74.0 °C (-101 °F)
Hansen Solubility Parameters 
     Hydrogen Bonding3.1
Heat of Combustion-783.9 kcal/g·mol
Heat of Vaporization8723 cal/g·mol
Liquid Heat Capacity 
     @ 25°C53.14 cal/(g*mol)(°C)
Liquid Viscosity 
     @ 20°C0.7 cP (mPa·s)
Maximum Incremental Reactivity (MIR)0.89
Molecular Weight116.2
Nitrocellulose SolubilityActive
Refractive Index 
     @ 20°C1.392-1.396
     in Water, @ 20°C0.7 wt %
     Water in, @ 20°C1.6 wt %
Specific Gravity 
     @ 20°C/20°C0.882-0.884
Surface Tension 
     @ 20°C25.1 dynes/cm
TLV PPM 1998150
Upper Limits for Trace Metals 
     Aluminium (Al)20 ppb
     Barium (Ba)20 ppb
     Cadmium (Cd)20 ppb
     Calcium (Ca)20 ppb
     Chromium (Cr)20 ppb
     Cobalt (Co)20 ppb
     Copper (Cu)20 ppb
     Gallium (Ga)20 ppb
     Germanium (Ge)20 ppb
     Iron (Fe)20 ppb
     Lead (Pb)20 ppb
     Lithium (Li)20 ppb
     Magnesium (Mg)20 ppb
     Manganese (Mn)20 ppb
     Nickel (Ni)20 ppb
     Potassium (K)20 ppb
     Silver (Ag)20 ppb
     Sodium (Na)20 ppb
     Strontium (Sr)20 ppb
     Titanium (Ti)20 ppb
     Zinc (Zn)20 ppb
Vapor Density 
     (air = 1)4.0
Vapor Pressure 
     @ 20°C1.39 mm Hg
     @ 55°C7.4 kPa
Viscosity, Neat 
     @ 20°C0.73 cP
Water Content0.05 wt % max.
     @ 20°C0.88 kg/L (7.35 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 11:03:12 AM