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Technical Data Sheet
Eastman EastaPure™ EP Solvent

  • Electronic chemical cleaners
  • Electronic chemicals
  • LCD displays
  • Photoresist solvents
  • Photoresist strippers
  • Process solvents
Key Attributes
  • Excellent resin solubility
  • High Purity/Low Trace Metals
  • High assay
  • Inert - Nonfood use
  • Viscosity control

Product Description

Eastman EastaPure™ EP solvent is a high flash point, water miscible, colorless solvent providing slow evaporation rates and good viscosity control for a broad range of polymers, resins and coatings. It is completely water miscible over a wide range of temperatures making it a very good coupling solvent for resin/water systems.

Miscible with most organic solvents, EastaPure™ EP can be blended to provide customized formulation properties necessary for specialty applications.

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
Assay99.5 wt % min.
Autoignition Temperature235 °C (455 °F)
     BP98.5 °C (209.3 °F)
     Wt % Water73 wt %
Boiling Point @ 760 mm Hg 
     Dry Point153 °C (308 °F)
     Initial149.5 °C (301 °F)
     Pt-Co10 max.
Critical Pressure36.2 ATM
Critical Temperature308.8 °C
Critical Volume347 ml/g·mol
Dilution Ratio 
     VMP Naphtha2
Electrical Resistance0.1 Megohms
Evaporation Rate 
     (ether = 1)60.5
     (n-butyl acetate = 1)0.2
Expansion Coefficient, per °C 
     @ 20°C0.0009
Fire Point56 °C (133 °F)
Flash Point 
     Tag Closed Cup49 °C (120 °F)
Freezing Point<-90 °C (<-130 °F)
Hansen Solubility Parameters 
     Hydrogen Bonding6.6
Heat of Combustion-704.8 kcal/g·mol
Heat of Vaporization11060 cal/g·mol
Liquid Heat Capacity 
     @ 25°C44.51 cal/(g*mol)(°C)
Liquid Viscosity 
     @ 20°C2.4 cP (mPa·s)
Maximum Incremental Reactivity (MIR)0.07
Nitrocellulose SolubilityActive
Refractive Index 
     @ 20°C1.414
     in Water, @ 20°CComplete
     Water in, @ 20°CComplete
Specific Gravity 
     @ 20°C/20°C0.913
Surface Tension 
     @ 20°C27.9 dynes/cm
Upper Limits for Trace Metals 
     Aluminium (Al)100 ppb
     Barium (Ba)100 ppb
     Cadmium (Cd)100 ppb
     Calcium (Ca)100 ppb
     Chromium (Cr)100 ppb
     Cobalt (Co)100 ppb
     Copper (Cu)100 ppb
     Gallium (Ga)100 ppb
     Germanium (Ge)100 ppb
     Iron (Fe)100 ppb
     Lead (Pb)100 ppb
     Lithium (Li)100 ppb
     Magnesium (Mg)100 ppb
     Manganese (Mn)100 ppb
     Nickel (Ni)100 ppb
     Potassium (K)100 ppb
     Silver (Ag)100 ppb
     Sodium (Na)100 ppb
     Strontium (Sr)100 ppb
     Titanium (Ti)100 ppb
     Zinc (Zn)100 ppb
Vapor Density 
     (air = 1)3.6
Vapor Pressure 
     @ 20°C1.3 mm Hg
     @ 55°C2.2 kPa
     @ 20°C0.91 kg/L (7.59 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.

5/8/2018 3:59:55 PM