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Technical Data Sheet
Eastman EastaPure™ DB Solvent

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  • Process solvents
Key Attributes
  • High Purity/Low Trace Metals
  • High boiling
  • High solvency
  • Inert - Food use with limitations
  • Inert - Nonfood use
  • Slow evaporation rate
  • Water-miscible

Product Description

Eastman EastaPure™ DB Solvent (Diethylene Glycol Monobutyl Ether) is a high boiling, slow evaporating glycol ether providing low trace metals content for sensitive electronic applications. High-purity specifications (low trace metals) are required for solvents in semiconductor chip manufacturing, and special handling and storage procedures are used to maintain the high-purity specifications. Eastman EastaPure™ DB Solvent is being presented for photoresist applications/formulations, specifically for photoresist removers/strippers.

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
Autoignition Temperature204 °C (400 °F)
Blush Resistance 
     @ 80°F (26.7°C)85 % RH
Boiling Point 
     @ 760 mm Hg230-235 °C (441-455 °F)
     Pt-Co10 max.
Critical Pressure 25.3 ATM
Critical Temperature380.8 °C
Critical Volume526 ml/g·mol
Dilution Ratio 
     VMP Naphtha1.9
Electrical Resistance<0.3 Megohms
Empirical FormulaC8H18O3
Evaporation Rate 
     (ether = 1)4034
     (n-butyl acetate = 1)0.003
Expansion Coefficient, per °C 
     @ 20°C0.00085
Fire Point117 °C (242 °F)
Flammability Limits in Air, % by Volume 
     Lower @ 135°C0.85 Vol %
     Upper @ 199°C24.6 Vol %
Flash Point 
     Cleveland Open Cup111 °C (232 °F)
Freezing Point-76 °C (-105 °F)
Hansen Solubility Parameters 
     Hydrogen Bonding10.6
Heat of Combustion-1109 kcal/g·mol
Heat of Vaporization12920 cal/g·mol
Liquid Heat Capacity 
     @ 54°C80.62 cal/(g*mol)(°C)
Liquid Viscosity 
     @ 25°C4.7 cP (mPa·s)
Maximum Incremental Reactivity (MIR)2.7
Molecular Weight162.23
Nitrocellulose SolubilityActive
Refractive Index 
     @ 20°C1.4316
     in Water, @ 20°CComplete
     Water in, @ 20°CComplete
Specific Gravity 
     @ 20°C/20°C0.955
Surface Tension 
     @ 20°C30 dynes/cm
Upper Limits for Trace Metals 
     Aluminum25 ppm, max
     Barium25 ppm, max
     Cadmium25 ppm, max
     Calcium25 ppm, max
     Chromium25 ppm, max
     Cobalt25 ppm, max
     Copper25 ppm, max
     Gallium25 ppm, max
     Germanium25 ppm, max
     Iron25 ppm, max
     Lead25 ppm, max
     Lithium25 ppm, max
     Magnesium25 ppm, max
     Manganese25 ppm, max
     Nickel25 ppm, max
     Potassium25 ppm, max
     Silver25 ppm, max
     Sodium25 ppm, max
     Strontium25 ppm, max
     Titanium25 ppm, max
     Zinc25 ppm, max
Vapor Density 
     (air = 1)5.6
     @ 20°C0.02 mm Hg
     @ 55°C0.04 kPa
     @ 20°C0.96 kg/L (7.94 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.

10/12/2020 5:14:21 PM