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DOWANOL™ DPnB Glycol Ether

DOWANOL™ DPnB glycol ether is a relatively slow-evaporating solvent which offers highly efficient coalescing properties and excellent surface tension-lowering abilities. Compatible with many different resin types, this product is very effective in water- and solvent-based coatings and cleaners.

Used in:

  • Household and industrial cleaners, grease and paint removers, metal cleaners, and hard surface cleaners
  • Water and solvent-based coatings
  • Epoxides, acid ester derivatives, solvents, and plasticizers

Advantages:

  • Excellent solvency
  • Good oil solubility
  • Effective surfactant properties
  • Excellent coupling ability
  • Good evaporation rate control

Typical Physical Properties
These properties are typical but do not constitute specifications.

Molecular weight (g/mol)

190.3

Boiling point @ 760 mmHg, 1.01 bar

446°F230°C
Flash point (Setaflash Closed Cup)212.7°F100.4°C
Freezing point<-103°F<-75°C
Vapor pressure@ 20°C — extrapolated0.04 mmHg
0.06 mbar
Specific gravity (25/25°C)0.910
Density @ 20°C
        @ 25°C
7.60 lb/gal
7.57 lb/gal
0.911 g/cm³
0.907 g/cm³
Viscosity (cP or mPa•s @ 25°C)

4.9

Surface tension (dynes/cm or mN/m @ 25°C)

28.4

Specific heat (J/g/°C @ 25°C)

1.79

Heat of vaporization (J/g) at normal boiling point

252

Net heat of combustion (kJ/g) — predicted @ 25°C30.8
Autoignition temperature381°F194°C
Evaporation rate(n-butyl acetate = 1.0)
(diethyl ether = 1.0)
0.006
>1200

Solubility, g/100 g @ 25°C
   Solvent in water
   Water in solvent

 4.5 (4.5 wt%)
14 (12 wt%)
Hansen solubility parameters (J/cm³)1/2
   _d (Dispersion)
   _p (Polar)
   _h (Hydrogen bonding)
14.8
2.5
8.7
Flammable limits (vol.% in air)
   Lower (measured @ 145°C)
   Upper (measured @ 180°C)
 0.60
20.40