Dipropylene Glycol Methyl Ether (DPM)

   Product Name: Dipropylene Glycol Methyl Ether
   CAS No.: 34590-94-8
   Synonyms / IUPAC Name: Dipropylene glycol monomethyl ether; 1-(2-Methoxy-1-methylethoxy)-2-propanol (mixture of isomers)
   Molecular Formula: C₇H₁₆O₃
   Molecular Weight: ~148.20 g/mol
   Appearance: Colourless to almost colourless clear liquid

Physicochemical Properties (Typical)

• Boiling Point: ≈190 °C at 760 mmHg
• Density: ~0.951 g/cm³ at 25 °C
• Solubility in Water: Completely miscible
• Flash Point: ~75 °C (closed cup)
• Other Notes: Very low vapour pressure; mixture of isomers; functions as a low-volatility glycol ether solvent.

Purity & Quality Standards

• Typical Purity: ≥98.0% (GC)
• Appearance: Clear liquid, free from visible particulates or haze.
• Specification Indicators: Assay of active substance, moisture content, refractive index, and density; ensures suitability for solvent applications.
• Storage Recommendation: Store sealed in a cool (<30 °C), dry, well-ventilated area; protect from strong oxidisers and high heat.

Applications / Uses

• Acts as a solvent or co-solvent in coatings, inks, adhesives, and resins, providing enhanced film formation and compatibility in higher-boiling systems.
• Used in cleaning and degreasing formulations where moderate evaporation rate and solvent power are required.
• Functions in printing, textile finishing, and specialty chemical processes due to its glycol-ether structure and good solvency profile.
• Suitable as an intermediate solvent component in industrial and commercial formulations with lower volatility.

Safety & Handling

• Flammability: Combustible liquid; vapours may form flammable mixtures under certain conditions.
• Health Hazards:
• Inhalation: High vapour concentrations may cause dizziness or respiratory effects.
• Skin Contact: Prolonged or repeated contact may lead to mild irritation.
• Eye Contact: May cause moderate eye irritation.
• Precautions:
• Use only in well-ventilated areas or under appropriate exhaust systems.
• Wear protective gloves, goggles/face shield, and suitable clothing.
• Avoid heat, ignition sources, and contact with strong oxidising agents.
• Reactivity / Incompatibilities: Avoid strong oxidising agents and strong acids or bases; high heat may lead to decomposition and release of hazardous gases.

Packaging & Storage

• Packaging: Supplied in sealed, solvent-compatible containers (e.g., drums or barrels) suitable for industrial use.
• Storage Conditions: Store in a cool (<30 °C), dry, well-ventilated environment, away from direct sunlight, moisture, and ignition sources; keep container tightly closed when not in use.
• Shelf Life: Stable under recommended storage conditions; inspect container and product appearance if stored for extended periods before use.