About: Characterization of kaolin dispersion using acoustic and electroacoustic spectroscopy

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Práce je zaměřena na stanovení elektrokinetického potenciálu na povrchu částic kaolínu v kapalném prostředí. Byl sledován vliv koncentrace pevných částic, různých druhů elektrolytů (0.01 M KCl, 0.01 M MgCl2 a 0.01 M CaCl2), pH a teploty dispersí na hodnoty zeta potenciálu. Isoelektrický bod kaolínových suspensí nastává při pH 4-5. Elektrolyty obsahující monovalentní kationy jako např. K+ posunují hodnoty zeta potenciálu k zápornějším hodnotám v porovnání s vodným prostředím. Takové chování je vysvětleno výměnou H+ a K+ iontů v systému. Pokud je elektrolyt tvořen dvojmocnými ionty jako např. Mg2+ nebo Ca2+ hodnoty zeta potenciálu jsou méně negativní než hodnoty zeta potenciálu kaolínu ve vodě. (cs) The work is focused on determination of electrokinetic potential on the surface of kaolin in liquid medium. Effects of concentration of solid, different kind of electrolytes (0.01 M KCl, 0.01 M MgCl2 and 0.01 M CaCl2), pH and temperature of the dispersions on the zeta potential are investigated. The isoelectric points (IEP) of kaolin suspension are about pH 4-5. Electrolytes containing monovalent cations such as K+ become zeta potential more negative compared to the values obtained with water. Such behaviour is explained by the exchange of K+ ions with H+ ions in the system. When the electrolyte is formed by divalent cations such as Mg2+ or Ca2+, the values of zeta potential become less negative than zeta potential of kaolin in water. The work is focused on determination of electrokinetic potential on the surface of kaolin in liquid medium. Effects of concentration of solid, different kind of electrolytes (0.01 M KCl, 0.01 M MgCl2 and 0.01 M CaCl2), pH and temperature of the dispersions on the zeta potential are investigated. The isoelectric points (IEP) of kaolin suspension are about pH 4-5. Electrolytes containing monovalent cations such as K+ become zeta potential more negative compared to the values obtained with water. Such behaviour is explained by the exchange of K+ ions with H+ ions in the system. When the electrolyte is formed by divalent cations such as Mg2+ or Ca2+, the values of zeta potential become less negative than zeta potential of kaolin in water. (en)
Title	Characterization of kaolin dispersion using acoustic and electroacoustic spectroscopy Characterization of kaolin dispersion using acoustic and electroacoustic spectroscopy (en) Charakterizace kaolínové disperze využitím akustické a elektroakustické spektroskopie (cs)
skos:prefLabel	Characterization of kaolin dispersion using acoustic and electroacoustic spectroscopy Characterization of kaolin dispersion using acoustic and electroacoustic spectroscopy (en) Charakterizace kaolínové disperze využitím akustické a elektroakustické spektroskopie (cs)
skos:notation	RIV/00216275:25310/08:00007779!RIV09-MSM-25310___
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM0021627501)
http://linked.open...iv/cisloPeriodika	neuvedeno
http://linked.open...vai/riv/dodaniDat	2009
http://linked.open...aciTvurceVysledku	Šulcová, Petra Dohnalová, Žaneta Svoboda, Ladislav
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Pardubice / Fakulta chemicko-technologická
http://linked.open...dnocenehoVysledku	359591
http://linked.open...ai/riv/idVysledku	RIV/00216275:25310/08:00007779
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	kaolin; zeta-potential; isoelectric point; thermal behavior (en)
http://linked.open.../riv/klicoveSlovo	zeta-potential kaolin thermal behavior isoelectric point
http://linked.open...odStatuVydavatele	CS - Státní svaz Srbska a Černé Hory
http://linked.open...ontrolniKodProRIV	[D729C83DAB9C]
http://linked.open...i/riv/nazevZdroje	Journal of Mining and Metalurgy
http://linked.open...in/vavai/riv/obor	CA
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...UplatneniVysledku	2008
http://linked.open...v/svazekPeriodika	44B
http://linked.open...iv/tvurceVysledku	Dohnalová, Žaneta Šulcová, Petra Svoboda, Ladislav
http://linked.open...n/vavai/riv/zamer	Aimed preparation of special compounds and materials and investigation of their physical and chemical properties and supramolecular structures
issn	1450-5339
number of pages	10 (xsd:int)
http://localhost/t...ganizacniJednotka	25310
is http://linked.open...avai/riv/vysledek of	Characterization of kaolin dispersion using acoustic and electroacoustic spectroscopy Characterization of kaolin dispersion using acoustic and electroacoustic spectroscopy Characterization of kaolin dispersion using acoustic and electroacoustic spectroscopy Characterization of kaolin dispersion using acoustic and electroacoustic spectroscopy

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