Product name: Diethylene Glycol Monomethyl Ether (DEGME)
CAS‑No.: 111‑77‑3
EC / EINECS No.: 203‑906‑6
Index No.: 603‑107‑00‑6
IUPAC Name: 2‑(2‑Methoxyethoxy)ethanol
Synonym: Methyl Carbitol, Methyldiglycol
Molecular Formula: C5H12O3
Molecular Weight: 120.15 g/mol
Grade: Industrial Solvent Grade
Product Description
Diethylene Glycol Monomethyl Ether (DEGME) is a hygroscopic glycol ether solvent. It is a clear, colourless liquid with mild sweet odour. Fully miscible with water, alcohols, ketones and most organic solvents. It exhibits strong dissolving capacity for many resins, oils and dyes. Widely used in coatings, printing‑inks, cleaning formulations and brake‑fluid raw materials.
⚠️Regulatory Note: EU CLP classification: CMR Category 2 Reproductive Toxicity (H361fd), suspected of damaging fertility and foetus.
Physical‑Chemical Properties
Melting / Freezing point: −70 ℃
Boiling point: 193‑194 ℃
Flash point (closed‑cup) :83 ℃
Auto‑ignition temperature: 215 ℃
Explosion limits in air: 1.6 ~ 18.1 vol%
Vapour pressure (20℃): 0.3 hPa
Solubility: Fully miscible with water and common organic solvents
Stability: Hygroscopic; avoid strong oxidants; may form peroxides upon long‑term air exposure
Typical Quality Specifications
| Item | Specification | Test Method |
|---|---|---|
| Appearance | Clear, colorless transparent liquid | Visual inspection |
| Purity (GC), wt% | ≥ 99.0 | GC‑FID |
| Water content (KF), wt% | ≤ 0.10 | Karl‑Fischer titration |
| Acidity (as Acetic acid), wt% | ≤ 0.01 | Titration |
| Density (20℃), g/cm³ | 1.020‑1.030 | Hydrometer |
| Distillation range (760 mmHg), ℃ | 190‑196 | Distillation test |
| Refractive index (n₂₀/D) | 1.425‑1.427 | Refractometer |
| Color (APHA) | ≤ 15 | Colorimeter |
Applications & Use
Coating & Ink industry: High‑boiling latent solvent for paints, varnishes and printing inks.
Industrial cleaners: Solvent component for heavy‑duty cleaning formulations.
Brake fluid raw material, jet‑fuel anti‑icing additive.
Dissolving agent for dyes, resins and oil‑based formulations.
Packaging & Transportation
HS Code: 2909499090
UN‑Number: UN 2810
Hazard Class: Class 6.1 Toxic liquid, Packing Group Ⅲ
Package: 200 kg steel drum / 1000 L IBC tank
Storage: Store in cool, dry, well‑ventilated warehouse. Keep tightly sealed. Separate from strong oxidants. Avoid prolonged contact with air.
Shelf‑life: 24 months under recommended storage.
Hazard Summary (GHS)
Warning, Suspected reproductive toxicity (CMR Cat.2)
H361fd: Suspected of damaging fertility; suspected of harming the unborn child.
H312: Harmful in contact with skin.
H332: Harmful if inhaled.
H319: Causes serious eye irritation.
Avoid vapour inhalation. Wear chemical‑resistant gloves, safety goggles and respiratory protection. For full safety information please refer to SDS document.
Disclaimer
All information given is based on current laboratory knowledge for reference purpose only, and shall not constitute product warranty. End‑users shall verify suitability for their own process and comply with local regulatory requirements.



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