Commonly, dioxane (which is also known as 1,4-dioxane) is found in products that create suds, like shampoo, liquid soap and bubble bath. Environmental Working Group's analysis suggests that 97 percent of hair relaxers, 57 percent of baby soaps and 22 percent of all products in Skin Deep may be contaminated with dioxane.
Dioxane is primarily used as a stabilizer for 1,1,1-trichloroethane for storage and transport in aluminium containers. Normally aluminium is protected by a passivating oxide layer, but when these layers are disturbed, highly reactive metallic aluminium is exposed to the chlorocarbon. This aluminium reacts with 1,1,1-trichloroethane to give aluminium trichloride, which in turn catalyses the dehydrohalogenation of the remaining 1,1,1-trichloroethane to vinylidene chloride and hydrogen chloride. Reflecting its properties as a ligand, dioxane "poisons" the aluminum trichloride catalyst, by formation of an adduct. Apart from its use as a stabilizer, dioxane is used in a variety of applications as a solvent, e.g. in inks and adhesives.
Read More: Dioxane suppliers
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