Propylene Glycol Methyl Ether (PGME, 1-Methoxy-2-propanol, C₄H₁₀O₂) is a versatile, colorless organic solvent in the glycol ether family, known for dissolving both polar and non-polar substances, featuring low toxicity and good evaporation. Used widely in paints, coatings, cleaners, inks, and dyes, it acts as a carrier, stripper, and coalescent, valued for its high solvency and relatively benign environmental profile, though it can form peroxides and reacts with strong oxidants.
| PRODUCT NAME | : | PROPYLENEGLYCOLMETHYLETHER |
| CAS number | : | 107-98-2 |
| UN number | : | |
| Formula | : | CH3OCH2CHOHCH3 |
| Odour | : | |
| Solubility in water | : | COMPLETE |
| Density | : | 0.923 at 20 oC |
| Boiling point | : | 120 oC |
| Melting point | : | -95 oC |
| Viscosity | : | |
| Flashpoint | : | 36 oC |
| Explosive limits | : | |
| Vapour pressure | : | 14 mbar at 25oC |
| Skin absorption/irritation | : | YES |
| TLV Country NL Year 1995 | : | 100 ppm 360 mg/m3 |
| Pollution category 1994 | : | (D) |
Coatings: Acts as a coalescing agent, helping paint films form smoothly.
- Cleaning: Effective in industrial and commercial paint strippers and general cleaners.
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Printing: Used in printing inks and pastes for textiles and leather.
In essence, PGME is a workhorse solvent prized for its performance and lower health/environmental impact compared to older solvents, found in countless industrial and commercial products.
- Appearance: Clear, colorless liquid with a mild, ethereal odor.
- Formula: C₄H₁₀O₂.
- Solubility: Miscible (mixes) with water and many organic solvents.
- Uses: Solvent in inks, paints, wood stains, furniture polish, cleaners, and textile/leather dyeing.
- Properties: Good solvency, fast evaporation, low toxicity, biodegradable.
- Safety: Flammable, can form explosive peroxides, reacts with strong oxidants.
- Other Names: PGME, 1-Methoxy-2-propanol, Methoxypropanol, Dowanol PM.
- Related: Propylene Glycol Methyl Ether Acetate (PGMEA) is a derivative with a fruity smell, used in electronics and coatings.
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