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National Repository of Grey Literature 3 records found  Search took 0.00 seconds. 
Determination of dissociation exponents of selected polyaza derivatives
 Hajduová, Jana ; Nesměrák, Karel (advisor) ; Rychlovský, Petr (referee)
Title: Determination of dissociation exponents of selected polyaza derivatives Annotation: The aim of this thesis is extimation of dissociation exponets of seclected polyaza derivatives by acid-base titration with potentiometric registration of titration curve. The titration curve was processed using Hyperquad 2006 software. The satisfactory agreement of determined values of dissociation exponents with literature data was found. Key words: dissociation exponent, potentiometric titration, polyaza compounds
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Dissociation Constants of Perfluorocarboxylic Acids
 Vlasáková, Tereza ; Nesměrák, Karel (advisor) ; Rychlovský, Petr (referee)
Bachelor's thesis is concerned on dissociation exponents of perfluoroalkanoic acids. The published values of dissociation exponents have been reviewed. The dissociation exponents of six selected perfluoroalkanoic acids (from perfluoropentanoic to perfluorodecanoic acid) were determined using neutralization potentiometric titration method. The values of determined dissociation exponents ranges from pKa = 2,17 to 2,44, and they are in agreement with known data. The decrease of value of dissociation exponent with increasing number of carbon in alkyl chain has been observed. Also, the increase of values of dissociation exponents of perfluoroalkanoic acids in comparison with theirs nonfluorinated analogs has been confirmed.
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Determination of dissociation exponents of selected polyaza derivatives
 Hajduová, Jana ; Rychlovský, Petr (referee) ; Nesměrák, Karel (advisor)
Title: Determination of dissociation exponents of selected polyaza derivatives Annotation: The aim of this thesis is extimation of dissociation exponets of seclected polyaza derivatives by acid-base titration with potentiometric registration of titration curve. The titration curve was processed using Hyperquad 2006 software. The satisfactory agreement of determined values of dissociation exponents with literature data was found. Key words: dissociation exponent, potentiometric titration, polyaza compounds
Detailed record

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