Extraction of water miscible organic dyes by reverse micelles of alkyl glucosides |
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Authors: | Hidetaka Noritomi Shogo Tamai Hiroaki Saito Satoru Kato |
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Institution: | (1) Department of Applied Chemistry, Tokyo Metropolitan University, Minami-Ohsawa, Hachioji Tokyo, 192-0397, Japan;(2) Gun Ei Chemical Industry Co., Ltd., 700 Shukuorui-machi, Takasaki-shi Gunma, 370-0032, Japan |
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Abstract: | The extraction of methyl orange or methylene blue from an aqueous phase to an organic phase of reverse micelles of alkyl glucosides
was investigated. Dodecyl glucoside, a biodegradable and biocompatible surfactant, was employed as a kind of alkyl glucosides,
since a stable Winsor II system consisting of the water-in-oil type microemulsion and aqueous phases was formed when an organic
solution containing dodecyl glucoside was contacted with an aqueous solution. The water content in the reverse micellar organic
phase increased with an increase in the concentration of dodecyl glucoside. The extraction ratio of dyes also increased with
increasing the concentration of dodecyl glucoside. Furthermore, the extraction ratio of dyes was dramatically dependent upon
the pH of an aqueous phase and temperature. |
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Keywords: | Reverse micelle Extraction Organic dye Nonionic surfactant Alkyl glucoside |
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