Tetraethylene glycol dimethyl ether

Structural formula

It can be used as a good solvent for the alkali metal hydride; for a variety of chemical alkylation condensation and reduction reaction process; since the compound having Lewis basicity, so it can choose to absorb acid gas, synthesis gas, natural gas, acetylene purification of gas; fixative of gas chromatography.

Molecular formula


Molecular weight 222.28
CAS 143-24-8
EINECS RN 205-594-7
InChI 1S/C10H22O5/c1-11-3-5-13-7-9-15-10-8-14-6-4-12-2/h3-10H2,1-2H3
Appearance colorless transparent liquid, slight smell of ether
Boiling point(101.3kPa) 343.3℃(275-276℃)
Freezing point -29.7
Specific gravity(25℃/4℃)  
Refractive index(25℃) (1.431-1.433)
Flash point 161.4℃(141℃)
Melting point -30℃
Density 1.009
Surface tension(mN/M)20℃ 33.96
Solubility Soluble in water, organic solvents
Viscosity(20℃) 4.01
Chemical properties

stable property, and  may react with oxidant

Purity(GC)% ≥99.0
Moisture% ≤0.1
Acidity(as HAC)% ≤0.015
Peroxide(as H2O2)% ≤0.005
Packing 200kg