How does the isomer composition identify the specific chemical structure of this Propylene Glycol Monomethyl Ether?

Commercial production typically yields a mixture of isomers, but this specific industrial grade is purified to predominantly contain the alpha isomer (1-methoxy-2-propanol) at levels exceeding 99.5%, which definitively identifies a safer industrial solvent and distinguishes it from the more toxic beta isomer (2-methoxy-1-propanol) that is strictly controlled as a trace impurity.

Is this bifunctional solvent typically applied as a primary carrier fluid or a coupling agent in water-based resin formulations?

It is commonly used as a highly effective coupling agent in water-reducible systems, intended to bridge the miscibility gap between the aqueous phase and the organic polymer matrix, ensuring emulsion stability rather than functioning solely as a primary volumetric carrier.

Propylene Glycol Monomethyl Ether CAS 107-98-2

Propylene Glycol Monomethyl Ether (CAS 107-98-2) is a colorless, highly volatile synthetic organic liquid featuring both ether and alcohol functional groups, serving as a versatile medium-boiling carrier within the broader category of Solvents. Operating as an advanced, low-toxicity PGME matrix, this bifunctional 1-methoxy-2-propanol exhibits exceptional solvency for both polar and non-polar substances, making the propylene glycol methyl ether integral to formulating advanced industrial coatings, flexographic printing inks, and agricultural chemical suspensions. Its balanced evaporation rate provides excellent flow and leveling properties when deployed as a fundamental PM solvent or active methoxypropanol coupling agent in demanding surface treatment and electronic cleaning environments. To support large-scale continuous manufacturing schedules, our facility maintains extensive bulk supply capabilities, ensuring consistent high-purity distillation with customized specifications to meet precise moisture and acidity parameters, all backed by competitive factory pricing and comprehensive technical documentation including MSDS, TDS, COA.

CAS: 107-98-2
Synonyms: PGME, 1-Methoxy-2-propanol, Propylene glycol methyl ether, PM solvent, Methoxypropanol
Einecs: 203-539-1
Molecular Formula: C4H10O2
Grade: Industrial Grade
Package: 190kg/iron drum, 950kg/IBC tank, ISO Tank

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Product Description

Technical Data

Physicochemical Properties	Standard Specification (Industrial High-Purity Grade)
Appearance	Colorless transparent liquid
Purity (1-Methoxy-2-propanol)	≥ 99.5%
2-Methoxy-1-propanol (Beta Isomer)	≤ 0.4%
Moisture / Water Content	≤ 0.1%
Acidity (as Acetic Acid)	≤ 0.01%
Color (Pt-Co)	≤ 10
Specific Gravity (20/20°C)	0.918 – 0.924
Distillation Range	117.0 – 125.0 °C

Applications

Industrial Coatings & Paints: Functions as a highly active solvent and coupling agent for water-reducible and solvent-based acrylic, epoxy, and polyurethane coatings, significantly improving film flow and leveling characteristics.
Printing Inks: Utilized as a fast-evaporating carrier fluid in flexographic and gravure printing inks to precisely regulate drying times and prevent screen clogging during high-speed printing operations.
Electronic & Industrial Cleaning: Applied as an effective degreaser and flux remover in semiconductor and PCB manufacturing due to its low surface tension, low toxicity, and high residue dissolution capacity.

Storage & Safety

Storage Conditions: Store in a cool, dry, and well-ventilated warehouse environment away from direct sunlight, open flames, and strong oxidizers. Because it is a flammable liquid (Flash point ~31°C), containers must be kept tightly closed and electrically grounded to prevent static accumulation.
Safety & Handling: Industrial handling requires explosion-proof local exhaust ventilation. Operators must utilize chemical-resistant butyl rubber gloves, splash-proof safety goggles, and organic vapor respirators to prevent eye irritation and prolonged inhalation of volatile solvent vapors.

Quality Assurance

Our solvent distillation facility operates under strict ISO 9001 quality management protocols. Every production batch undergoes rigorous Gas Chromatography (GC) analysis to verify organic purity and ensure the beta-isomer (2-methoxy-1-propanol) remains strictly controlled below safe industrial limits. We continuously monitor trace moisture via automated Karl Fischer titration and assess acidity levels to guarantee the solvent complies fully with stringent international coating and electronic manufacturing specifications.

FAQ - Technical & Supply Chain

Q:
How does the isomer composition identify the specific chemical structure of this Propylene Glycol Monomethyl Ether?

A: Commercial production typically yields a mixture of isomers, but this specific industrial grade is purified to predominantly contain the alpha isomer (1-methoxy-2-propanol) at levels exceeding 99.5%, which definitively identifies a safer industrial solvent and distinguishes it from the more toxic beta isomer (2-methoxy-1-propanol) that is strictly controlled as a trace impurity.
Q:
Is this bifunctional solvent typically applied as a primary carrier fluid or a coupling agent in water-based resin formulations?

A: It is commonly used as a highly effective coupling agent in water-reducible systems, intended to bridge the miscibility gap between the aqueous phase and the organic polymer matrix, ensuring emulsion stability rather than functioning solely as a primary volumetric carrier.

Documents

Documents and Product Support

For product review and sourcing evaluation, supporting documents can be coordinated according to the product type, inquiry stage, and order requirements.

COA for batch-based quality reference
TDS for key physical and chemical information
SDS / MSDS for handling, storage, and safety reference
Packing information for sample, trial, and bulk orders
Technical communication based on application and specification requirements

Quotation

Information to Confirm Before Quotation

Clear sourcing information helps reduce specification mismatch and allows a more accurate quotation before sample or bulk order discussion.

Product name and CAS number
Application or intended end use
Required purity, grade, or specification
Sample quantity, trial order, or bulk demand
Preferred packing form or net weight
Destination country or port
Required documents or compliance expectations

Storage & Handling

Packaging, Storage, and Handling Notes

Packaging form, storage conditions, shelf life, and shipment arrangements should be confirmed according to the product characteristics, package size, and destination requirements.

Before order confirmation, buyers are advised to review the corresponding product documents and confirm whether any special storage, labeling, or handling requirements apply.

Supply Support

Sample, Bulk Order and Repeat Supply Support

Support can be arranged for sample discussion, bulk supply planning, packaging confirmation, and routine sourcing communication based on the actual product and order requirements.

For repeat-use formulations or long-term procurement plans, buyers may discuss specification consistency, packaging preferences, delivery expectations, and document coordination in advance.

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Carrier Solvent Cleaning Solvent Coating Solvent Glycol Ether Solvent

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