(Properties and basic data)

Tetraethylene glycol dimethyl ether, also tetraglyme, TGDE, dimethyltetraglycol or dimethoxytetraglycol is a chemical compound from the group of glycol ethers.

It is a colorless liquid with an ethereal smell. It is soluble in ethanol and carbon tetrachloride and miscible with water. Tetraethylene glycol dimethyl ether is one of the flammable, hardly flammable, less volatile liquids.

The empirical formula of tetraethylene glycol dimethyl ether is C10H22O5 and the associated CAS number 143-24-8 or EC number 205-594-7.

The molar mass is 222.28 g / mol-1 and the refractive index is 1.432 (20 ° C). The density is 1.01 g / cm-3 and the vapor pressure is 0.099 Pa (20 ° C). The melting point of tetraethylene glycol dimethyl ether -30 ° C, the boiling point at 274 ° C and the flash point at 141 ° C.

Tetraethylene glycol dimethyl ether is assigned to storage class 6.1C (combustible, acutely toxic category 3 / toxic or chronically acting hazardous substances.

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