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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:
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Typical Physical Properties | ||
Molecular weight (g/mol) | 190.3 | |
Boiling point @ 760 mmHg, 1.01 bar | 446°F | 230°C |
| Flash point (Setaflash Closed Cup) | 212.7°F | 100.4°C |
| Freezing point | <-103°F | <-75°C |
| Vapor pressure@ 20°C — extrapolated | 0.04 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°C | 30.8 | |
| Autoignition temperature | 381°F | 194°C |
| Evaporation rate | (n-butyl acetate = 1.0) (diethyl ether = 1.0) | 0.006 >1200 |
Solubility, g/100 g @ 25°C | 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 | |