EFFECT OF SODIUM, CALCIUM, MAGNESIUM, AND CHLORIDE-IONS ON THE SOLVENT-EXTRACTION OF BORON FROM AQUEOUS-SOLUTIONS

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dc.contributor.authorKAHRAMAN, F
dc.date.accessioned2024-04-24T16:24:36Z
dc.date.available2024-04-24T16:24:36Z
dc.date.issued1995
dc.departmentDicle Üniversitesien_US
dc.description.abstractThe effect of Na+, Ca2+, Mg2+ and Cl- ions upon the solvent extraction of boron from aqueous solutions has been studied. The extraction of Na+, Ca2+, Mg2+ and Cl- ions singly and in various mixtures into 2-ethyl-1,3-hexanediol(EHD), 2-chloro-4-(1,1,3,3-tetramethylbutyl)-6-methylolphenol (CTMP) and 1:1 mixture of the two is considered here. The results show that in the absence of berates each of the solvent systems will extract a small amount of dissolved Na+, Mg2+ and Ca2+ cations, presumably as solvated ion pairs, and the order of extraction is generally CTMP > CTMP/EHD > EHD and Ca2+ > Mg2+ > Na+ (all exhibiting considerable increase with pH). A maximum is achieved for calcium with CTMP at pH 11. These observations are consistent with larger bulk shielding effect of CTMP in ion-pair formation and also with its (likely) stronger acidity. The same general trends are observable in the extraction of the same cations in the presence of boron, but the effects are much greater. However, the extent of the extraction of boron is little affected by the presence of the cations. These results can be rationalized if it is assumed that any of the species H+, Na2+, Mg2+, or Ca2+ can act as counter ions in the formation and extraction of borate-cation complex ion pairs.en_US
dc.identifier.doi10.1080/07366299508918278
dc.identifier.endpage332en_US
dc.identifier.issn0736-6299
dc.identifier.issue2en_US
dc.identifier.scopus2-s2.0-0029274062
dc.identifier.scopusqualityQ2
dc.identifier.startpage323en_US
dc.identifier.urihttps://doi.org/10.1080/07366299508918278
dc.identifier.urihttps://hdl.handle.net/11468/16785
dc.identifier.volume13en_US
dc.identifier.wosWOS:A1995QL81900010
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoenen_US
dc.publisherMarcel Dekker Incen_US
dc.relation.ispartofSolvent Extraction and Ion Exchange
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subject[No Keyword]en_US
dc.titleEFFECT OF SODIUM, CALCIUM, MAGNESIUM, AND CHLORIDE-IONS ON THE SOLVENT-EXTRACTION OF BORON FROM AQUEOUS-SOLUTIONSen_US
dc.titleEFFECT OF SODIUM, CALCIUM, MAGNESIUM, AND CHLORIDE-IONS ON THE SOLVENT-EXTRACTION OF BORON FROM AQUEOUS-SOLUTIONS
dc.typeArticleen_US

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