Propylene Glycol Monomethyl Ether, Methyl Propylene Glycol, Methylpropylenglykol, Methoxy Propanol, PGME, PM, 107-98-2

Propylene Glycol Monomethyl Ether, Methyl Propylene Glycol, Methylpropylenglykol, Methoxy Propanol, PGME, PM, 107-98-2

🔹 Physical & Chemical Properties

• Molecular Formula: C4H10O2

• Molecular Weight: 90.12 g/mol

• Appearance: Clear, colorless liquid with a mild odor

• Boiling Point: ~120 °C

• Density: ~0.92 g/cm³ (at 20 °C)

• Solubility: Completely miscible with water and many organic solvents

• Vapor Pressure: Low, which makes it suitable for controlled evaporation applications

🔹 Industrial Applications

• Solvent in Paints & Coatings:

  • Used in latex paints as a coalescing agent, helping resin particles fuse into a durable film.

  • Provides controlled drying and enhances adhesion.

• Printing Inks & Cleaners:

  • Effective in dissolving resins, oils, and waxes.

  • Common in cleaning formulations and degreasers.

• Electronics Manufacturing:

  • Utilized in semiconductor processing as a carrier solvent.

  • Ensures uniform distribution of additives during chip fabrication.

• Petroleum Industry:

  • Acts as a stabilizer for crude oil and natural gas during transport.

  • Improves miscibility in reservoir treatments.

🔹 Pharmaceutical & Cosmetic Uses

• Pharmaceuticals:

  • Functions as a solvent and diluent in drug formulations.

  • Helps dissolve active ingredients for stable dosage forms.

• Cosmetics & Personal Care:

  • Serves as a humectant and solvent in creams, lotions, and hair care products.

  • Its mild odor and volatility make it suitable for perfumes and deodorants.

🔹 Food & Flavoring Applications

• Food Additive (limited use):

  • Sometimes employed as a processing aid or flavor diluent.

  • Enhances texture and prolongs shelf life in baked goods, gelatin, and puddings.

• Flavor Carrier:

  • Its low vapor pressure allows controlled release of aromas. ⚠️ Regulatory Note: Usage in food is strictly regulated and varies by country. Always check FDA, EU, or local food safety guidelines before application.

🔹 Advantages

• Low toxicity compared to many solvents

• Versatility across polar and non-polar systems

• Controlled evaporation rate → ideal for coatings, inks, and cosmetics

• Good compatibility with water and organic compounds

🔹 Chemical & Trade Names

• Propylene Glycol Monomethyl Ether (PGME, PM)

• Methoxy Propanol (PM)

• 1-Methoxy-2-Propanol

• Methyl Propylene Glycol (Methylpropylenglykol)

• Propylene Glycol Methyl Ether

• Monomethyl Propylene Glycol Ether

🔹 Abbreviations

• PGME → Propylene Glycol Monomethyl Ether

• PM → Methoxy Propanol

🔹 Registry & Identifiers

• CAS Number: 107-98-2

• EC Number: 203-539-1

• UN Number (Transport): UN 3092 (classified as flammable liquid)