SOLVENT SUBLATION OF INDIGO CARMINE FROM WATER
Journal Title: Международный научный журнал "Интернаука" - Year 2018, Vol 1, Issue 11
Abstract
Indigo carmine (IC, C16H8N2Na2O8S2), an anionic dye, was removed from aqueous solutions by solvent sublation of an IC–hexadecylpyridinium bromide (HPB) complex (sublate) into octanol. The effects of the following parameters on solvent sublation were experimentally studied: the molar ratio of HPB: IC, pH of aqueous phase, the removal process duration, type and volume of organic solvent. The initial dye concentration was 10 mg/dm3. It was found that the process should be conducted under such conditions: pH 5, solvent – octanol, Schott filter nominal pore size – 100 µm, molar ratio of HPB:IC = 1:1, process duration – 20 min. According to obtained results the highest level of IC elimination was reached within the experiment equals 94,38±0,34 %.
Authors and Affiliations
Tatіana Obushenko, Nataliya Tolstopalova, Olga Nesterchuk
Keywords
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