1. In this way, dioxane is used to drive the Schlenk equilibrium. 2. Usually toluene, dioxane , tetrahydrofuran or acyclic dialkylethers are employed as solvents. 3. The compound is derived from dioxane by dehydrogenation. 4. PEGs contain potential toxic impurities, such as ethylene oxide and 1, 4-dioxane . 5. While diethyl ether is rather insoluble in water, dioxane is miscible and in fact is hygroscopic. 6. It is insoluble in benzene but soluble in dioxane , from which it crystallizes as yellow needles. 7. By 1991, the company had eliminated 1, 4-dioxane by changing its formula for solvents. 8. Soil and groundwater had been contaminated with the volatile organic compounds trichloroethylene and 1, 4-Dioxane . 9. SO 3 is a strong Lewis acid readily forming crystalline complexes with pyridine, dioxane , and trimethylamine. 10. Figure 3 : Chains in the 1 : 1 adduct of 1, 4-dioxane and bromine.