dioxan

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dioxan

(daɪˈɒksən) or

dioxane

n
(Elements & Compounds) a colourless insoluble toxic liquid made by heating ethanediol with sulphuric acid; 1,4-diethylene dioxide: used as a solvent, esp for waxes and cellulose acetate resins. Formula: (CH2)2O(CH2)2O
References in periodicals archive ?
Cuomo today announced that the State's Department of Health has conditionally approved New York's first use of a technology known as Advanced Oxidative Process (AOP) to remove 1,4-dioxane from drinking water.
Although high levels of lead, benzene and arsenic have long contaminated the 500-acre site, it wasn't until spring 2015 that scientists found 1,4-dioxane, a colorless solvent that health officials believe causes cancer, in the area.
1,4-dioxane was provided by Scharlau and was distilled over metallic potassium and benzophenone, prior to use, to remove traces of moisture.
In recent comments to the Environment Protection Agency (EPA) docket on 1,4-dioxane as one of the first 10 chemicals for risk evaluation, the American Cleaning Institute is urging the agency to focus on actual intended use of ingredients, rather than look at trace byproducts, residues or contaminants in their risk evaluations.
When 4e was treated with a-bromoester in 1,4-dioxane (1/10 mL) it was resulted like the Eschenmoser sulfide contraction and compounds 8 was obtained.
Similarly, a variety of organic compounds like AHA (alpha hydroxyl acid), Quarternium 15, Dioxin, Amines, Fragrance (Fragrance Oils), Parabens, Phthalates, 1,4-Dioxane, Petrochemicals, Nanoparticles, Grain Spirits are also used in cosmetics.
Solvents used were as follows: tetrahydrofuran (THF) and 1,4-dioxane from Aldrich, toluene and diethyl ether (as precipitation agent) from Chimopar SA, anisole from Merck-Schuchardt, diphenyl ether (DPE) from Fluka-AG, and methanol from SC PAM Corporation SRL.
Already, 1,4-dioxane (a carcinogen used as a solvent) has been detected in at least one residential well in Charlton, Ms.
Utilizing the updated miVac SpeedTrap with continuous chill mode in conjunction with the miVac Super Vacuum pump, up to 250 mL of water, or other solvents such as 1,4-dioxane, may be freeze dried in a single operation.
The FDA has tried to put some restrictions on the cosmetic industry, by minimizing the amount of 1,4-Dioxane in children's products to a concentration not more than 10ppm (parts per million.
The terpolymer resin TGF is yellow in color, insoluble in cold and hot water, but completely soluble in ethanol, diethyl ether, A,A-dimethyl formamide, dimethyl sulfoxide, chloroform, carbon tetrachloride, benzene, acetone, cyclohexane, 1,4-dioxane, and petroleum ether.
The preferential solvation parameters, that is, the difference between the local and bulk mole fractions of the solvents in solutions of some structurally related sulfonamides in 1,4-dioxane + water binary mixtures are derived from their thermodynamic properties by means of the inverse Kirkwood-Buff integrals method.