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1,4-Dioxane; a colorless liquid used as a solvent for cellulose esters and in histology as a drying agent.
Synonym(s): 1, 4-diethylene dioxide
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Dioxane was only recently identified as a contaminant of emerging concern by environmental and health regulators.
Comments: Versatile primary, plant based high solids surfactant that is easy to process, with lower color, lower residual odor, extremely low residual 1,4 dioxane, with no alcohol, preservatives or antioxidants.
Few treatment methods were proved to be successful and economically feasible for removing 1,4 dioxane from wastewater.
bidest] Wood fibers (control) Dioxane Wood fibers + laccase Dioxane Wood fibers + LMS (VAN) Dioxane Wood fibers + LMS (HBA) Dioxane Wood fibers (control) Dioxane + alkali Wood fibers + laccase Dioxane + alkali Wood fibers + LMS (VAN) Dioxane + alkali Wood fibers + LMS (HBA) Dioxane + alkali Relative amounts (%) of wood components in different regions COOH/C = O Aromatic groups Samples (220-160 ppm) (160-195 ppm) Wood fibers (control) 1.
However, studies carried out on people who have extensive occupational exposure to dioxane have not shown any increase in cancer rates.
1, 4 dioxane is a by-product of sodium laureth sulfate and present in small amounts in cosmetics, shampoos and many products on the market today.
Concerns on the cancer risks of talc, dioxane, formaldehyde, nitrosamine, and ethylene oxide, besides other prohibited and restricted carcinogenic ingredients in cosmetics and personal care products, are not new.
Swanson Health Products (SHP), one of the leading e-commerce organic grocers, has teamed up with leading manufacturers of natural home care products and eco-friendly cleaners to develop a collection of safe, effective household cleaners with no dioxane, triclosan, phosphates, formaldehyde, caustic solvents or petrochemicals of any kind.
The liquefaction product in the dioxane-water solution obtained above was diluted again with dioxane solution (80/20, vol/vol) to 250 mL in a volumetric flask, and the free phenol content in the solution was analyzed by a gas chromatograph (GC-17A; Shimadzu, Kyoto, Japan), equipped with a flame ionization detector (FID) and CBP 20 silica-fused capillary column (25-m by 0.
The Dubai Municipality had withdrawn from the local market 17 shampoos of five brands from China, India and Iran, whose samples had been found to be containing high percentage of carcinogenic dioxane 1.
Compounds 1/2 also act as reversible sensors for dioxane, DMF and acetonitrile (Figure 2), however strongly coordinating solvents such as ammonia and pyridine are not easily displaced.
EPA has identified 50 compounds, including benzene, chloroform, formaldehyde and dioxane, which it believes are of "significant toxicological concern.