Dipropylene glycol methyl ether

Dipropylene glycol methyl ether (CAS 34590-94-8), also known as DPGME or Dowanol 50B, is a slow-evaporating glycol ether solvent.

Where is Dipropylene glycol methyl ether used?

• Coatings: coalescing agent and flow promoter improving film formation in waterborne latex systems
• Electronics: flux formulations and PCB cleaning
• Printing inks and packaging coatings: pigment dispersion and drying-speed control in flexographic and gravure applications
• Adhesives and sealants: carrier solvent adjusting viscosity and open time in water-based and reactive formulations
• It has a controlled evaporation rate and compatibility with water-based and solvent-based systems.
• Lubricants, greases and antifreeze.
• Component in fabric dye coupling agents.
• Inert ingredient (stabilizer and/or surfactant) in the manufacture of pesticides and insecticides.
• Floor and carpet cleaners.

Formulation notes

• May react violently with strong oxidizing agents.
• Known to react with cellulose-based absorbents, so these should be used with caution.

Typical specification

• The commercial product (CAS 34590-94-8) exists as four isomeric forms, all present in the commercial product.
• Purity (GC) greater than 98.5%.
• The relative proportion of 1-(2-methoxypropoxy)propan-2-ol (CAS 13429-07-7) is generally 40 to 50%.

Regulatory status

• Customs tariff code 2909498090.
• NIOSH REL for dipropylene glycol methyl ether is a TWA of 100 ppm (600 mg/m3) with a short-term limit of 150 ppm (900 mg/m3), skin notation.

Storage, packaging and handling

• After 24 months of storage, the quality of dipropylene glycol methyl ether should be checked before use.
• Dipropylene glycol methyl ether should be stored in well-filled, closed containers in a cool, dry place protected from light.

Frequently asked questions about Dipropylene glycol methyl ether

What is the acidity level of dipropylene glycol methyl ether?

Dipropylene glycol methyl ether has an acidity (as acetic acid) of less than 0.01%.

Is dipropylene glycol methyl ether used in industrial cleaners and degreasers?

Dipropylene glycol methyl ether may be a component in industrial cleaners and degreasers.

Technical content is compiled and updated by the SoleChem product team from public technical sources; the certificate of analysis (COA) governs product-specific specifications.