1. Basic Chemical PropertiesPropertyValueChemical NameEthylene glycol methyl etherCAS Number109
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| Property | Değer |
|---|---|
| Chemical Name | Ethylene glycol methyl ether |
| CAS Numarası | 109-86-4 |
| Moleküler Formül | C₃H₈O₂ |
| Moleküler Taşımı | 76.09 g/mol |
| Görüntü | Colorless liquid |
| Odor | Mild, ether-like |
| Boiling Noktası | 124-125°C (255-257°F) |
| Erime noktası | -85°C (-121°F) |
| Density (20°C) | 0.965 g/cm³ |
| Solubility in Water | Miscible |
| Flash Point | 46°C (115°F) (closed cup) |
| Autoignition Temperature | 285°C (545°F) |
| Industry | Primary Use |
|---|---|
| Paints & Coatings | Solvent for resins, lacquers, and dyes; improves flow and drying properties |
| Electronics | Cleaning agent for printed circuit boards (PCBs) and semiconductor components |
| Pharmaceuticals | Intermediate in drug synthesis; solvent for bioactive compounds |
| Printing Inks | Carrier solvent for pigments; enhances print quality |
| Adhesives | Improves viscosity and bonding strength |
| Chemical Synthesis | Precursor for producing glycol ether derivatives |
| Parameter | Details |
|---|---|
| OSHA Exposure Limit (PEL) | 25 ppm (skin exposure risk) |
| NIOSH Recommended Limit | 0.1 ppm (potential reproductive hazard) |
| Health Hazards | Acute: Dizziness, nausea Chronic: Liver/kidney damage, anemia |
| Flammability | Combustible (Class II) |
| Storage Conditions | Cool, ventilated area; away from oxidizers and ignition sources |
| Spill Response | Absorb with inert material; avoid water dispersion |
| Aspect | Status |
|---|---|
| Biodegradability | Moderate (60–80% degradation in 28 days) |
| Aquatic Toxicity (LC50) | 1.000–5.000 mg/L (moderately toxic to fish) |
| VOC Compliance | Regulated as a volatile organic compound (VOC) in the US and EU |
| REACH Status | Listed as a Substance of Very High Concern (SVHC) due to reproductive toxicity |
| Disposal Methods | Incineration or licensed hazardous waste facilities |
| Property | EGME | Ethylene Glycol Ethyl Ether (EGEE) | Propylene Glycol Methyl Ether (PGME) |
|---|---|---|---|
| Toksiklik | High | Moderate | Low |
| Evaporation Rate | Fast | Medium | Slow |
| Solvent Strength | Strong | Strong | Moderate |
| Regulatory Status | Sınırlı | Limited restrictions | Unrestricted |
| Cost | Low | Medium | High |
Avantajları
✔ Excellent solvent for polar and non-polar compounds
✔ Low production cost compared to alternatives
✔ Enhances coating adhesion and gloss
Limitations
✖ High toxicity (requires strict handling)
✖ Environmental persistence
✖ Increasing regulatory restrictions
Ethylene glycol methyl ether (EGME) remains a widely used industrial solvent despite its toxicity concerns. Its balance of solvent efficacy and cost-effectiveness ensures continued demand in coatings, electronics, and pharmaceuticals. However, users must adhere to strict safety protocols and monitor evolving regulations. Alternatives like PGME are gaining traction for less hazardous applications.
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