IntroductionDiethylene glycol methyl ether (DEGME, CAS 111-77-3) is a versatile glycol ether so
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Diethylene glycol methyl ether (DEGME, CAS 111-77-3) is a versatile glycol ether solvent widely used in industrial and commercial applications due to its balanced solvent properties, moderate evaporation rate, and low toxicity. This article provides a structured overview of its key characteristics, uses, and safety considerations in a tabulated format for quick reference.
| Property | Value / Description |
|---|---|
| Chemical Formula | C₅H₁₂O₃ |
| Molecular Weight | 120.15 g/mol |
| Appearance | Colorless liquid |
| Odor | Mild, ether-like |
| Boiling Point | 194°C (381°F) |
| Flash Point | 85°C (185°F) - Closed cup |
| Density (20°C) | 0.965 g/cm³ |
| Solubility | Miscible with water, alcohols, and most organic solvents |
| Vapor Pressure (20°C) | 0.15 mmHg |
Key Features:
✔ High solvency power for resins, dyes, and oils
✔ Low volatility compared to other glycol ethers
✔ Biodegradable under aerobic conditions
| Industry | Primary Use | Benefits |
|---|---|---|
| Paints & Coatings | Solvent for water-based and epoxy coatings | Improves flow, reduces VOC emissions |
| Printing Inks | Carrier solvent for dye-based inks | Enhances drying time and print clarity |
| Cleaning Agents | Degreaser in industrial cleaners | Effective on oils without damaging surfaces |
| Electronics | Flux remover in PCB manufacturing | Non-corrosive, leaves minimal residue |
| Pharmaceuticals | Excipient in topical formulations | Enhances drug penetration |
| Parameter | Recommendation |
|---|---|
| Storage Conditions | Keep in a cool, well-ventilated area away from oxidizers |
| Personal Protection | Gloves (nitrile), goggles, and respirator if vapor exposure is high |
| Firefighting Measures | Use alcohol-resistant foam, CO₂, or dry chemical extinguishers |
| First Aid (Inhalation) | Move to fresh air; seek medical attention if symptoms persist |
| Environmental Impact | Avoid release into waterways (toxic to aquatic life) |
Regulatory Status:
OSHA PEL (US): 25 ppm (skin)
EU REACH: Registered under Annex VII
Biodegradability: >60% in 28 days (OECD 301B)
| Property | DEGME | Ethylene Glycol Ethers | Propylene Glycol Ethers |
|---|---|---|---|
| Toxicity | Moderate | High (reproductive risks) | Low |
| Evaporation Rate | Medium | Fast | Slow |
| Water Solubility | High | High | Moderate |
| Primary Use | Industrial solvents | Paints, electronics | Cosmetics, cleaners |
Diethylene glycol methyl ether is a highly effective, medium-evaporating solvent with broad industrial utility. While safer than some ethylene-based alternatives, proper handling remains essential due to its moderate toxicity. Future trends include its substitution with bio-based glycol ethers in eco-sensitive applications.
Disclaimer: The above content is for reference and communication only among industry insiders, and does not guarantee its accuracy or completeness. According to relevant laws and regulations and the regulations of this website, units or individuals who purchase related items should obtain valid qualifications and qualification conditions.
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