DOWANOL™ DPnP is a slow evaporating glycol ether solvent from Dow Chemicals. It is based on dipropylene glycol n-propyl ether and provides an excellent balance of hydrophilic and hydrophobic properties.
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DOWANOL™ DPnP is a dipropylene glycol n-propyl ether-based solvent from Dow that offers a slower evaporation rate and slightly higher hydrophobicity than DOWANOL™ PnP. It has a near mid-range balance of hydrophobic and hydrophilic properties with significant water solubility compared to other glycol ethers.
DOWANOL™ DPnP is an excellent performance glycol ether solvent when used in coatings as it offers outstanding coalescing properties in blends with more hydrophobic glycol there such as DOWANOL™ PnB. DOWANOL™ DPnP glycol ether can also be blended with other materials to displace or replace Butyl CELLOSOLVE™ glycol ether (formerly known as DOWANOL EB glycol ether).
DOWANOL™ DPnP is also used to reduce surface tension and improve the solvency of coatings and cleaning formulations. Its low toxicity, low odor, and good chemical stability make it suitable for a wide array of applications.
Appearance: Colorless liquid
Odor: Ether
Freezing point: < -85 °C (-121 °F)
Boiling point (760 mmHg): 212 °C (414 °F) at 1,013 hPa EC Method A2
Flash point: Closed cup 94 °C (201 °F) Setaflash Closed Cup ASTM D3828
Relative density (water = 1): 0.919 at 25 °C (77 °F) / 25 °C
Water solubility: 150,000 mg/L at 20 °C (68 °F)
Partition coefficient: n-octanol/water: log Pow 0.88 (OECD Test Guideline 107 or Equivalent)
Auto-ignition temperature:205 °C (401 °F)
Dynamic viscosity: 4.7 mPa.s at 20 °C (68 °F)
Kinematic viscosity: 5.1 mm2/s at 20 °C (68 °F)
Molecular weight: 176.25 g/mol (Calculated)
CAS#: 29911-27-1
Chemistry: Dipropylene glycol n-propyl ether
Colorless ether solvent with low odor
Glycol ether with moderate water solubility (19 ml /100 ml)
Slow evaporating solvent with good chemical stability
Very efficient surface tension reduction
Excellent solvency with low toxicity
Good compatibility with resins and surfactants
Performance issues with the use of fast-evaporating solvents in paints and coatings
Availability of mid-range balance between hydrophobic and hydrophilic properties
Coalescent for water-borne latex coatings
Active solvent for solvent-borne coatings.
Alternative to Butyl CELLOSOLVE™ glycol ether in cleaners and coatings
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