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Solvent polarity indicators: Extraction of some coumarin indicator dyes

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Abstract

Study of the extraction of ten different coumarins (unsubstituted, 6-methyl-, 7-methyl-, 4-hydroxy-, 7-hydroxy-, 7-hydroxy-4-methyl-, 7-methoxy-, 7-amino-4-methyl-, 7-diethyl-amino-4-methyl-, and 3-carboxy-) with nine organic solvents shows that the percentage extraction is generally high. Cyclohexanone and heptane were found to be, respectively, the most and least effective extracting solvents for the compounds under study. The results are discussed in terms of the effect of different solvent polarity parameters on the extraction process.

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Authors and Affiliations

  1. Chemistry Department, Faculty of Science, Ain Shams University, Abbassia, Cairo, Egypt

    Maged S. Antonious & D. Y. Sabry

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  1. Maged S. Antonious
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  2. D. Y. Sabry
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Antonious, M.S., Sabry, D.Y. Solvent polarity indicators: Extraction of some coumarin indicator dyes. Mikrochim Acta 118, 69–74 (1995). https://doi.org/10.1007/BF01242229

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  • DOI: https://doi.org/10.1007/BF01242229

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