Dow DOWANOL PNB (Propylene Glycol Monobutyl Ether) is a high-performance coupling solvent in Dow's DOWANOL propylene glycol ether series. Designed for heavy-duty cleaning, coating film formation, fine chemical synthesis and other systems, it is a low-toxic and environmentally friendly ether solvent with efficient dissolution coupling and system solubilization properties
Efficient Dissolution & Coupling - Strong oil solubility, excellent coupling performance, suitable for various material systems
Precise Replacement & Adaptation - Evaporation rate close to ethylene glycol butyl ether, directly replaceable to optimize formulations
Low-Toxic & Environmental Safety - Low toxicity, complying with environmental standards, suitable for household and industrial scenarios
Partial Water Solubility & Solubilization - Partially water-soluble, capable of solubilizing most solvents, improving formulation compatibility
Heavy-Duty Cleaning Field - Used in industrial metal cleaners and household hard surface cleaners for efficient oil removal
Coating Film Formation Systems - Used as coupling agent for water-reducing coatings and coagulant for water-based latex coatings to improve film quality
Ink & Resin Industry - As active solvent for solvent-based coatings, suitable for ink and resin synthesis processes
Fine Chemical Synthesis - Used in synthesis of esters, plasticizers and other chemicals, as high-quality chemical intermediate
| Chemical Name | Propylene Glycol Monobutyl Ether |
| English Alias | DOWANOL PNB; Propylene glycol butyl ether |
| CAS No. | 29387-86-8 |
| Molecular Formula | C₇H₁₆O₂ |
| Molecular Weight | 132.20 |
| Physical Form | Colorless transparent liquid, slightly ether odor |
| Purity | ≥ 99 % |
| Boiling Point | 165-175 ℃ (Typical 170℃) |
| Melting Point | -15.45 ℃ (Typical) |
| Flash Point (Closed Cup) | 60 ℃ (138°F) |
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