Dipropylene Glycol Propyl Ether (DPGPE)

   Product Name: Dipropylene Glycol Propyl Ether
   CAS No.: 29911-27-1
   Synonyms / IUPAC Name:    Di(propylene glycol) n-propyl ether; 1-(2-propoxy-1-methylethoxy)-2-propanol (mixture of isomers)
   Molecular Formula: C₉H₂₀O₃
   Molecular Weight: ~176.3 g/mol

Physicochemical Properties (Typical)

• Appearance: Colorless clear liquid
• Boiling Point: ~212 °C at 760 mmHg
• Density: ~0.92 g/cm³ at 25 °C
• Refractive Index: n²⁰ᴰ ≈ 1.424
• Solubility in Water: Moderate (~150 g/L at 20 °C)
• Flash Point: ~94 °C (closed cup)
• Low volatility coupling solvent; compatible with both hydrophilic and hydrophobic systems; supports film formation and surface tension reduction.

Quality & Compliance Standards

• Typical Purity: ≥98.5%
• Appearance Specification: Clear liquid without visible particulates or haze
• Key Indicators: Assay, moisture content, density, refractive index, color (APHA)
• Storage Recommendation: Store sealed in a cool (<30 °C), dry, ventilated area; avoid oxidising agents and prolonged heat.

Applications / Uses

• Solvent or co-solvent in coatings, inks, adhesives, and resin systems for improved wetting, leveling, and film formation.
• Used in cleaning, degreasing, and surface treatment formulations requiring solvency and moderate evaporation rate.
• Effective as a coupling solvent in printing, textile finishing, and specialty chemical formulations.
• Ideal for formulations needing balanced compatibility with hydrophilic/hydrophobic components and low vapor loss.

Safety & Handling

• Flammability: Combustible liquid; vapors may form flammable mixtures.
• Health Hazards:
• Inhalation: High vapor concentrations may cause respiratory irritation or dizziness.
• Skin Contact: Prolonged or repeated exposure may cause mild irritation.
• Eye Contact: May result in eye irritation.
• Precautions:
• Use in well-ventilated areas or under local exhaust systems.
• Wear protective gloves, goggles/face shield, and suitable protective clothing.
• Keep away from ignition sources and avoid contact with strong oxidising agents.
• Reactivity / Incompatibilities: Avoid strong oxidisers, strong bases, or acids; decomposition at high temperatures may release hazardous gases.

Packaging & Storage

• Packaging: Supplied in sealed, solvent-compatible industrial containers suitable for chemical storage.
• Storage Conditions: Store in a cool (<30 °C), dry, ventilated area away from heat, sunlight, moisture, and incompatible substances; keep containers tightly closed.
• Shelf Life: Stable under recommended storage conditions; inspect container integrity and product appearance before use if stored long-term.