Ethylene glycol (1,2-dioxane, glycol, ethanediol-1,2) is a sweet-tasting, odorless, colorless, hygroscopic oily liquid. It is obtained by wetting ethylene in the presence of phosphoric or sulfuric acids. Ethylene glycol mixes well with water and alcohol. It has high boiling points and low freezing temperatures, which is why it is widely used as a heat carrier in heating and cooling systems. The crystallization temperature of the concentrate is higher than that of aqueous glycol solutions, therefore it must be diluted with distilled water before use.
CAS: 107-21-1