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dc.contributor.authorJones, Franca
dc.contributor.authorJones, Philip
dc.contributor.authorOgden, Mark
dc.contributor.authorRichmond, William
dc.contributor.authorRohl, Andrew
dc.contributor.authorSaunders, M.
dc.date.accessioned2017-01-30T13:50:10Z
dc.date.available2017-01-30T13:50:10Z
dc.date.created2009-03-05T00:58:35Z
dc.date.issued2007
dc.identifier.citationJones, Franca and Jones, Philip and Ogden, Mark and Richmond, William and Rohl, Andrew and Saunders, Martin. 2007. The interaction of EDTA with barium sulfate. Journal of Colloid and Interface Science. 316: pp. 553-561.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/35537
dc.identifier.doi10.1016/j.jcis.2007.09.005
dc.description.abstract

Ethylenediaminetetraacetic acid (EDTA) is a known complexing agent that interacts with a host of cations. In this paper, various techniques are used to elucidate the mechanism of interaction between EDTA and barium sulfate surfaces. It is shown that complexation with metal ions is not sufficient to explain the inhibition of barite crystallization but that other processes such as chemisorption must also occur. EDTA is shown to always adsorb as the mono-protonated species?suggesting that the molecule is able to lose a proton when it adsorbs at lower pH. Molecular modelling shows that the interaction of the surface barium ions with the carboxylate group is an important one. Finally, in situ turbidity measurements provide information about the mechanism of nucleation/growth modification. It is found that the EDTA molecule inhibits barium sulfate nucleation and that this could be its primary means of inhibiting precipitation of barium sulfate.

dc.publisherElsevier
dc.subjectBarium sulfate
dc.subjectAmino-carboxylates
dc.subjectSpeciation
dc.subjectInfrared spectroscopy
dc.subjectMolecular modelling
dc.subjectAdsorption
dc.subjectInhibitors
dc.subjectScale
dc.subjectPrecipitation
dc.titleThe interaction of EDTA with barium sulfate
dc.typeJournal Article
dcterms.source.volume316
dcterms.source.startPage553
dcterms.source.endPage561
dcterms.source.issn00219797
dcterms.source.titleJournal of Colloid and Interface Science
curtin.note

The link to the journal's home page is: http://www.elsevier.com/wps/find/journaldescription.cws_home/622861/description#description

curtin.note

Copyright © 2009 Elsevier B.V. All rights reserved.

curtin.accessStatusOpen access
curtin.facultyDepartment of Applied Chemistry
curtin.facultySchool of Science
curtin.facultyFaculty of Science and Engineering


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