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Extraction of water-soluble acid dyes by ion-pair formation with tri-n-octylamine

✍ Scribed by M. Puttemans; L. Dryon; D.L. Massart

Book ID
108306087
Publisher
Elsevier Science
Year
1980
Tongue
English
Weight
491 KB
Volume
113
Category
Article
ISSN
0003-2670

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πŸ“œ SIMILAR VOLUMES

Extraction of organic acids by ion-pair
Extraction of organic acids by ion-pair formation with tri-n-octylamine : Part 2. Back-extraction
✍ M. Puttemans; L. Dryon; D.L. Massart πŸ“‚ Article πŸ“… 1984 πŸ› Elsevier Science 🌐 English βš– 383 KB

Acids, extracted with tri-n-octylamine, are extracted back to an aqueous phase. The back-extraction is based on a displacement reaction. Several displacing ions were used: chloride, bromide, iodide, nitrate and perchlorate. The efficiency increases in the order chloride < bromide < iodide < perchlor

Extraction of organic acids by ion-pair
Extraction of organic acids by ion-pair formation with tri-n-octylamine : Part 4. Influence of organic phase composition
✍ M. Puttemans; L. Dryon; D.L. Massart πŸ“‚ Article πŸ“… 1985 πŸ› Elsevier Science 🌐 English βš– 414 KB

Synthetic food dyes are extracted by ion-pair formation with tri-n-octylamine. Mixed organic phases are used, consisting of mixtures of hexane with one of the following solvent modifiers: chloroform, dichloromethane, methyl isobutyl ketone, butyl acetate or pentanol. Logarithmic plots of the distrib

Extraction of organic acids by ion-pair
Extraction of organic acids by ion-pair formation with tri-n-octylamine : Part. 1. Extraction Rate and Influence of pH and Ionic Strength
✍ M. Puttemans; L. Dryon; D.L. Massart πŸ“‚ Article πŸ“… 1984 πŸ› Elsevier Science 🌐 English βš– 589 KB

The extraction scheme for dyes, developed previously, is applied to benzoic acid and its hydroxylated derivatives. Extractions are done with tri-n-octylamine at pH 5.5 and an ionic strength of 0.1 into chloroform. Equilibrium is attained in 20 min or less. The influences of pH and ionic strength of