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- W992329503 abstract "Polyphosphate derivatives of krill chitin and krill chitosan obtained with the use of a mixture of sodium polyphosphates and polyphosphoric acid are virtually insoluble in solution of pH ca. 4.0. At pH 3.7 iron ions are adsorbed in the highest adsorption yields, amounting for the polyphosphate of chitin and chitosan to 95% and 65%, respectively. Other bivalent ions (Cu +2 , Pb +2 , Cd +2 ) are distinctly adsorbed only by chitosan polyphosphate in an adsorption yield of 45-50%. The presence of up to 15% of ethanol in the medium does not reduce adsorption of all these cations. Zn +2 ions fail to be adsorbed on both carriers. Washing of carriers with 0.1 mol/L HCl results in complete release of the adsorbed ions. Industrial filter-paper sheets impregnated with chitosan polyphosphate were applied in laboratory tests for filtration of beer as well as of apple juice and apple wine, and «fortified» with Zn +2 , Cu +2 , Fe +2 , Pb +2 and Cd +2 ions" @default.
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- W992329503 date "1995-01-01" @default.
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- W992329503 title "Adsorption of iron by polyphosphate derivatives of chitin and chitosan" @default.
- W992329503 hasPublicationYear "1995" @default.
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