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Effect of magnesium ions on the adsorption of poly(acrylic acid) onto alumina
YKI – Ytkemiska institutet.
2001 (English)In: Journal of The American Ceramic Society, ISSN 0002-7820, E-ISSN 1551-2916, Vol. 84, p. 2710-2712Article in journal (Refereed)
Abstract [en]

The adsorption isotherms of poly(acrylic acid) (PAA) onto alumina powder have been determined as a function of pH, ionic strength, and magnesium-ion concentration. The adsorption of PAA is strongly enhanced by magnesium ions in alkaline media but less affected under acidic conditions. The adsorption isotherms display a maximum when PAA is fully complexed with magnesium ions in the solution, corresponding to a ratio of 0.25±0.05 [Mg2+]/[acrylic acid monomer]. The decrease in adsorbed amount with an increase in PAA concentration at constant magnesium-ion concentration is related to a decrease in the complexation ratio

Place, publisher, year, edition, pages
2001. Vol. 84, p. 2710-2712
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-26615OAI: oai:DiVA.org:ri-26615DiVA, id: diva2:1053618
Note
A1471Available from: 2016-12-08 Created: 2016-12-08 Last updated: 2017-11-29Bibliographically approved

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