Melting point: -96.7℃(Becoming vitreous body under -95℃.)
Refractive index: 1.399~1.404
Evaporation rate versus nBA: 0.7
Total solubility param.:10.0(cal/cm3)0.5
Dispersion s. p.: 7.6(cal/cm3)0.5
Polar s. p.: 3.1 (cal/cm3)0.5
Hydrogen bonding s. p.: 5.7 (cal/cm3)0.5
UN dangerous cargo code: 3092
Product standard: HG/T 3939-2007 Propylene glycol monomethyl ether for industrial use
Colorless transparent liquid
Water Content/wt% max.
Acidity (As CH3COOH) /wt% max.
Distillation range (0℃, 101.3 kPa)/℃
Density (ρ20)/ (g/cm3)
PGME is a kind of solvent having the lowest boiling point and the fastest evaporating rate among the P-series solvents. It has both hydrophobic covalent ether bond and hydrophilic hydroxy group in its molecular structure. So it has high solubility to both oily and aqueous resins. Its hydroxy group still has reactivity to enable it to act as chemical intermediate.
In paint, PGME has the features to reduce the film forming temperature, promote the resins to form films and ensure the paint film quality. PGME is a good coupling agent in solvent blends. It can replace alcohols solvent in dissolving dyes. During the production of inks, PGME appears in some formulas to modify the hydrophilicity of inks to decrease inks’ toxicity, improve operation environment and upgrade printing quality. It applies to flexographic and silk screen printing inks to control the evaporating speed and adjust the viscosity of the systems.
PGME has superb viscosity reduction ability. It manifests the ability particularly in epoxy and high solids acrylic systems. In new type brake fluids of motor vehicle, PM is used as viscosity modifier. Because the mixture of PM and water can reduce the freezing point, PGME is also used in antifreezing solution for radiator.
Because PGME has low toxicity, it is among few organic solvents that can be used in adhesive of cigarette carton and packet packaging papers.
PGME can also apply to household and industrial cleaner, rust remover, extraction agent and beneficiation of nonferrous metals. PGME and propylene glycol n-butyl ether are important compositions of glass cleaning agent.
PGME can be used as the solvent for agricultural pesticides, deactivator and emollient for livestock pesticides.
Package and delivery:
Propylene glycol monomethyl ether is normally delivered in bulk with stainless steel or carbon steel tank trucks. At customer’s request, it can also be packed in steel drums.