【CAS】107-98-2
Chemical formula: C4H10O2
Molecular weight:90.12
【Structural Formula】
1. Product Property
Propylene Glycol Methyl Ether (PGME) is a colorless, low-odor liquid with excellent solvency properties. It is miscible with water and most organic solvents, making it a versatile industrial chemical. PGME has a moderate evaporation rate and low toxicity compared to similar glycol ethers. Its balanced hydrophilic-lipophilic nature allows it to function as an effective coupling agent in various formulations. The compound exhibits good chemical stability and is biodegradable under environmental conditions.
2. Quality Standards
| Parameter | Specification |
| Purity (%) | ≥ 99.5 |
| Appearance | Clear, colorless liquid |
| Density (20°C, g/cm³) | 0.920–0.925 |
| Boiling Point (°C) | 118–121 |
| Water Content (wt%) ≤ | 0.1 |
| Acidity (as acetic acid) ≤ | 0.005% |
| Distillation Range (°C) | 117–121 (≥ 95% vol) |
| Residue on Evaporation ≤ | 0.005% |
3. Application Scope and Usage
PGME is widely used as a solvent in coatings, inks, and cleaning formulations due to its balanced evaporation rate and solvency power. In paints, it improves flow and leveling while reducing viscosity. The printing industry utilizes it as a carrier solvent for dyes and pigments. PGME serves as a coupling agent in household and industrial cleaners, enhancing the removal of oils and greases. It is also employed in electronic chemicals for photoresist formulations and semiconductor cleaning. The chemical’s low toxicity makes it suitable for consumer products, including personal care formulations where regulated.
4. Package and Storage
Propylene Glycol Methyl Ether (PGME) is typically packaged in 190kg steel drums or ISO tank containers for bulk transportation. For storage, the product should be kept in a cool, dry, and well-ventilated area away from direct sunlight and heat sources. As a regulated chemical, it must be handled and transported in compliance with hazardous material regulations.
