Are PGME, PM Glycol Ether and 1-Methoxy-2-propanol the same solvent?

Yes. These names identify the principal product associated with CAS 107-98-2, also called PGME alpha. PGME is not propylene glycol methyl ether acetate, dipropylene glycol methyl ether or 2-methoxy-1-propanol.

What is PGME used for?

PGME is used as a process solvent, active solvent and coupling agent in coatings, inks, cleaning products, electronics cleaning and other industrial formulations. It is selected for its water-miscibility, moderate evaporation and solvency, but the required water and isomer profile depends on the formulation.

Which specifications matter when purchasing industrial PGME?

Agree GC assay, water, acidity, color, density and distillation range, together with limits for the secondary beta isomer and other glycol ethers where required. Coating, cleaning and electronics processes may need different impurity limits.

What are the key physical and transport properties of PGME?

PGME is a colorless liquid with formula C4H10O2, boiling around 118-121 C, density about 0.916-0.924 g/cm3 and closed-cup flash point around 31-34 C. It is commonly shipped as UN 3092, Hazard Class 3 flammable liquid, Packing Group III.

How does PGME differ from PGMEA and 2-Methoxy-1-propanol?

PGME, or 1-methoxy-2-propanol, is CAS 107-98-2. PGMEA is the acetate ester propylene glycol methyl ether acetate, CAS 108-65-6, and 2-methoxy-1-propanol is the beta isomer with CAS 1589-47-5. Confirm the CAS and isomer profile because these materials have different regulatory and formulation properties.

Propylene Glycol Monomethyl Ether (PGME) CAS 107-98-2

Propylene Glycol Monomethyl Ether (PGME), also called 1-methoxy-2-propanol, is a glycol-ether solvent identified by CAS 107-98-2. For a solvent inquiry, give the exact CAS/isomer, process context, and required specification.

CAS: 107-98-2
Synonyms: 1-Methoxy-2-propanol; PGME; Solvent PM
Einecs: 203-539-1
Molecular Formula: C₄H₁₀O₂
Grade: Confirm the current product-specific specification.
Package: Confirm packaging requirements for the proposed material and destination.

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Product Description

Propylene Glycol Monomethyl Ether (PGME), also called 1-methoxy-2-propanol, is a glycol-ether solvent identified by CAS 107-98-2.

Physical form: confirm the current product-specific specification.

Grade and assay: confirm the current product-specific specification.

Water content or hygroscopicity requirements: confirm the current product-specific specification.

Distillation range: confirm the current product-specific specification.

Acidity: confirm the current product-specific specification.

Boiling point: confirm the current product-specific specification.

Flash point and handling requirements: confirm the current product-specific specification.

Density: confirm the current product-specific specification.

Viscosity: confirm the current product-specific specification.

Surface tension: confirm the current product-specific specification.

PGME may be evaluated as a process solvent in coatings, inks, cleaning, or other industrial formulations, subject to compatibility and destination requirements.

For related glycol-ether solvent raw materials, see Dipropylene Glycol Monomethyl Ether and Dipropylene Glycol n-Propyl Ether.

Handling, storage, and process requirements must be reviewed against the applicable SDS and current product-specific specification.

FAQ - Technical & Supply Chain

Q:
Are PGME, PM Glycol Ether and 1-Methoxy-2-propanol the same solvent?

A: Yes. These names identify the principal product associated with CAS 107-98-2, also called PGME alpha. PGME is not propylene glycol methyl ether acetate, dipropylene glycol methyl ether or 2-methoxy-1-propanol.
Q:
What is PGME used for?

A: PGME is used as a process solvent, active solvent and coupling agent in coatings, inks, cleaning products, electronics cleaning and other industrial formulations. It is selected for its water-miscibility, moderate evaporation and solvency, but the required water and isomer profile depends on the formulation.
Q:
Which specifications matter when purchasing industrial PGME?

A: Agree GC assay, water, acidity, color, density and distillation range, together with limits for the secondary beta isomer and other glycol ethers where required. Coating, cleaning and electronics processes may need different impurity limits.
Q:
What are the key physical and transport properties of PGME?

A: PGME is a colorless liquid with formula C4H10O2, boiling around 118-121 C, density about 0.916-0.924 g/cm3 and closed-cup flash point around 31-34 C. It is commonly shipped as UN 3092, Hazard Class 3 flammable liquid, Packing Group III.
Q:
How does PGME differ from PGMEA and 2-Methoxy-1-propanol?

A: PGME, or 1-methoxy-2-propanol, is CAS 107-98-2. PGMEA is the acetate ester propylene glycol methyl ether acetate, CAS 108-65-6, and 2-methoxy-1-propanol is the beta isomer with CAS 1589-47-5. Confirm the CAS and isomer profile because these materials have different regulatory and formulation properties.

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