Solvents
REACH
Tetraethylene glycol dimethyl ether
CAS Number
143-24-8
EC Number
205-594-7
Abbreviation
TEGDME
What is Tetraethylene glycol dimethyl ether?
Tetraethylene glycol dimethyl ether (CAS 143-24-8), commercially known as Tetraglyme or TEGDME, is a high-boiling, aprotic ether solvent.
Where is Tetraethylene glycol dimethyl ether used?
- Battery and electrochemical research: electrolyte solvent
- Lithium-air and lithium-sulfur systems, where its electrochemical stability influences cycle performance
- Pharmaceutical and biotech: reaction solvent and carrier
- Polymer processing: polymerization support and cross-linking medium
- Electronics: specialty cleaning and formulation
- It is used for sensitive active ingredients requiring an inert, non-protic environment.
Commercial specifications
- Technical and high-purity grades; high-purity specifications for battery-grade and pharmaceutical applications
- Anhydrous grades for moisture-sensitive processes
- Standard industrial packaging: drums and IBC containers
Other Names (Synonyms)
1-methoxy-2-[2-[2-(2-methoxyethoxy)ethoxy]ethoxy]ethane|Tetraglyme|TEGDME|E181 (ether)
What are the physical properties of Tetraethylene glycol dimethyl ether?
Melting Point -29.7 °C
Boiling Point 275 °C
Density 1.009 g/cm³
Flash Point 285 °F
Appearance clear liquid
Color Clear
Form Liquid
Water Solubility Soluble
Vapor Pressure <0.01 mm Hg ( 20 °C)
Refractive Index n 20/D 1.432(lit.)
Log P -0.84 at 23℃
How is Tetraethylene glycol dimethyl ether classified and handled safely? Learn More
Danger
GHS08· Health Hazard GHS07· Irritant
Hazard Statements
H336 May cause drowsiness or dizziness
H360 May damage fertility or the unborn child
Precautionary Statements
P203 Obtain, consult and follow expert instructions for use.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P271 Use only outdoors or in a well-ventilated area.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
Which trade and regulatory codes apply to Tetraethylene glycol dimethyl ether?
HS Code 29091990
Storage Class 6.1C - Combustible acute toxic Cat.3
toxic compounds or compounds which causing chronic effects
WGK (Germany) 1