Propylene glycol phenyl ether
Paint chemicals 2025-03-21
C9H12O2
Propylene glycol phenyl ether can be used as an excellent high-boiling organic solvent or modification aid, replacing isophorone, cyclohexanone, DBE, benzyl alcohol, ethylene glycol phenyl ether series with higher toxicity or odor. Because of its non-toxicity, good miscibility, moderate volatility, excellent polymerization and coupling ability, low surface tension, it is widely used in automotive and automotive refinishing coatings, electrophoretic coatings, industrial baking paints and ship, container and wood coatings.
Introduction to Propylene Glycol Phenyl Ether (PPH)
Propylene glycol phenyl ether (CAS 770-35-4) is a high-boiling, glycol ether solvent with low volatility and excellent solvency for resins, dyes, and coatings. It is widely used in industrial and consumer applications due to its mild odor, slow evaporation rate, and compatibility with polar/non-polar systems.
Key Properties and Applications
| Property | Description |
|---|---|
| Chemical Name | Propylene glycol phenyl ether (1-Phenoxy-2-propanol) |
| CAS No. | 770-35-4 |
| Molecular Formula | C9H12O2 |
| Appearance | Colorless to pale yellow liquid |
| Boiling Point | 243°C (469°F) |
| Flash Point | 121°C (250°F) – Closed cup |
| Solubility | Miscible with most organic solvents; partially soluble in water |
| Vapor Pressure | <0.01 mmHg at 20°C (low volatility) |
| Odor | Mild, characteristic |
| Application | Use Case |
|---|---|
| Coatings & Inks | Solvent for resins (e.g., acrylics, epoxies); improves flow and leveling. |
| Cleaning Products | Degreaser in industrial cleaners due to high solvency and low toxicity. |
| Adhesives | Carrier solvent for pressure-sensitive adhesives. |
| Cosmetics | Slow-evaporating ingredient in nail polishes and personal care formulations. |
| Agriculture | Adjuvant in pesticides to enhance penetration. |
Advantages
Low volatility improves workplace safety.
Biodegradable (>60% in 28 days per OECD 301D).
Low water solubility reduces environmental impact.
Safety & Handling
| Parameter | Value |
|---|---|
| LD50 (Oral, Rat) | >2.000 mg/kg (low acute toxicity) |
| Skin Irritation | Mild (per OECD 404) |
| Environmental | Not classified as hazardous under GHS. |
