Dipropylene Glycol Methyl Ether Acetate (DPGMEA)

   Product Name: Dipropylene Glycol Methyl Ether Acetate
   CAS No.: 889-17-22-0
   Synonyms / IUPAC Name: Di(propylene glycol) methyl ether acetate; 1-(2-methoxy-1-methylethoxy)-2-propanol acetate (mixture of isomers)
   Molecular Formula: C₉H₁₈O₄
   Molecular Weight: ~190.24 g/mol
   Appearance: Colourless clear liquid

Physicochemical Properties (Typical)

• Boiling Point: ~200–210 °C (at 760 mmHg)
• Density: ~0.970 g/cm³ at 25 °C
• Refractive Index: n²⁰ᴰ ≈ 1.417
• Solubility in Water: ~16 wt% at 25 °C (limited miscibility)
• Flash Point: ~86 °C (closed cup)
• Other Notes: Low vapour pressure (~0.08 mmHg at 20 °C); suitable for slow-evaporation and high-film-quality applications.

Purity & Quality Standards

• Typical Purity: ≥98% (mixture of isomers)
• Appearance: Clear liquid, free from visible particulates or haze.
• Specification Indicators: Assay of active substance, moisture content, refractive index, and density.
• Storage Recommendation: Store sealed in a cool (<30 °C), dry, well-ventilated environment away from ignition sources and strong oxidisers.

Applications / Uses

• Used as a solvent or co-solvent in coatings, inks, adhesives, and resins for balanced solvency and slow evaporation, enhancing film formation.
• Applied in cleaning and degreasing formulations where moderate vapour pressure and excellent resin solubility are required.
• Serves as an intermediate or component in specialty solvent blends, offering compatibility with both hydrophobic and hydrophilic systems.
• Preferred in industrial formulations where reduced volatility improves stability and handling safety.

Safety & Handling

• Flammability: Combustible liquid; vapours may form flammable mixtures under certain conditions.
• Health Hazards:
• Inhalation: High vapour concentrations may cause dizziness or respiratory irritation.
• Skin Contact: Prolonged or repeated contact may lead to mild irritation.
• Eye Contact: May cause irritation.
• Precautions:
• Use only in well-ventilated areas or under local exhaust systems.
• Wear protective gloves, goggles/face shield, and suitable protective clothing.
• Keep away from flames, sparks, and static-generating equipment.
• Reactivity / Incompatibilities: Avoid strong oxidising agents or strong acids/bases; decomposition may release hazardous gases at elevated temperatures.

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 place away from direct sunlight, ignition sources, and moisture; keep container tightly closed when not in use.
• Shelf Life: Stable under recommended conditions — inspect container and product appearance if stored for extended periods.