High purity (>99.0%) with low water content for consistent performance in sensitive formulations.
Excellent solvency for resins, dyes, and polar organic compounds across a broad temperature range.
Low volatility and high boiling point (≈278–282 °C), enabling extended process stability and reduced VOC emissions.
Good miscibility with water, alcohols, ketones, and hydrocarbons — ideal for co-solvent systems.
Non-corrosive to common stainless steel and lined equipment under standard handling conditions.
Coating and ink formulations — as a reactive diluent and viscosity modifier in UV-curable and high-solids systems.
Electronic cleaning agents — for residue-free removal of photoresists and fluxes in semiconductor manufacturing.
Agrochemical adjuvants — enhancing active ingredient solubilization and foliar penetration in pesticide concentrates.
Specialty polymer synthesis — serving as a chain-transfer agent or reaction medium in polyether-based elastomers.
Gas treating solutions — as a selective solvent for acid gas (CO₂/H₂S) absorption in natural gas purification.
| Chemical Type | Tetraethylene glycol monomethyl ether (MTEG) |
| Molecular Formula | C9H20O5 |
| Appearance | Clear, colorless to pale yellow liquid |
| Odor | Faint, characteristic ether-like odor |
| Boiling Point (760 mmHg) | 278–282 °C |
| Density (20 °C) | 1.035–1.045 g/cm³ |
| Refractive Index (20 °C) | 1.442–1.446 |
| Water Content (KF) | ≤0.10 wt% |
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