Potentiometric determination of the dissociation constants of weak acids in 1 mol/l KNO3: pKA's of aliphatic acyclic monoamines

R. Garner; J. Yperman; J. Mullens; L. C. Van Poucke

doi:10.1007/bf00325631

Potentiometric determination of the dissociation constants of weak acids in 1 mol/l KNO3: pKA's of aliphatic acyclic monoamines

Fresenius Journal of Analytical Chemistry ◽

10.1007/bf00325631 ◽

1993 ◽

Vol 345 (6) ◽

pp. 473-474 ◽

Cited By ~ 2

Author(s):

R. Garner ◽

J. Yperman ◽

J. Mullens ◽

L. C. Van Poucke

Keyword(s):

Dissociation Constants ◽

Potentiometric Determination ◽

Weak Acids

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Potentiometric determination of aqueous dissociation constants of flavonols sparingly soluble in water

Talanta ◽

10.1016/j.talanta.2007.08.007 ◽

2008 ◽

Vol 74 (4) ◽

pp. 1008-1013 ◽

Cited By ~ 43

Author(s):

José M. Herrero-Martínez ◽

Carme Repollés ◽

Elisabeth Bosch ◽

Martí Rosés ◽

Clara Ràfols

Keyword(s):

Dissociation Constants ◽

Potentiometric Determination

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Determination of dissociation constants of weak acids by deconvolution of proton binding isotherms derived from potentiometric data

Journal of Solution Chemistry ◽

10.1007/bf00972579 ◽

1996 ◽

Vol 25 (9) ◽

pp. 877-894 ◽

Cited By ~ 5

Author(s):

J. A. Schwarz ◽

Cr. Contescu ◽

V. T. Popa ◽

A. Contescu ◽

Y. Lin

Keyword(s):

Dissociation Constants ◽

Weak Acids ◽

Proton Binding ◽

Binding Isotherms ◽

Potentiometric Data

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Simultaneous determination of mixed dissociation constants and concentrations of weak acids by a successive linear regression.

NIPPON KAGAKU KAISHI ◽

10.1246/nikkashi.1985.2260 ◽

1985 ◽

pp. 2260-2264

Author(s):

Hiroshi MATSUSHITA ◽

Norihisa ISHIKAWA

Keyword(s):

Linear Regression ◽

Simultaneous Determination ◽

Dissociation Constants ◽

Weak Acids

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Accurate Potentiometric Determination of Lipid Membrane–Water Partition Coefficients and Apparent Dissociation Constants of Ionizable Drugs: Electrostatic Corrections

Pharmaceutical Research ◽

10.1007/s11095-009-9842-1 ◽

2009 ◽

Vol 26 (6) ◽

pp. 1332-1343 ◽

Cited By ~ 14

Author(s):

Mustafa M. A. Elsayed ◽

Ulrich Vierl ◽

Gregor Cevc

Keyword(s):

Partition Coefficients ◽

Lipid Membrane ◽

Dissociation Constants ◽

Potentiometric Determination

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Potentiometric Determination of Overlapping Dissociation Constants

Journal of Pharmaceutical Sciences ◽

10.1002/jps.2600620426 ◽

1973 ◽

Vol 62 (4) ◽

pp. 656-659 ◽

Cited By ~ 4

Author(s):

Paul J. Niebergall ◽

Roger L. Schnaare ◽

Edwin T. Sugita

Keyword(s):

Dissociation Constants ◽

Potentiometric Determination

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Potentiometric determination of acid dissociation constants (pKa) for human and veterinary antibiotics

Water Research ◽

10.1016/j.watres.2004.03.017 ◽

2004 ◽

Vol 38 (12) ◽

pp. 2874-2890 ◽

Cited By ~ 376

Author(s):

Zhimin Qiang ◽

Craig Adams

Keyword(s):

Dissociation Constants ◽

Acid Dissociation ◽

Potentiometric Determination ◽

Veterinary Antibiotics ◽

Acid Dissociation Constants

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Determination of acids and their strength in isobutyl methyl ketone

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19821203 ◽

1982 ◽

Vol 47 (4) ◽

pp. 1203-1215 ◽

Cited By ~ 2

Author(s):

Vladimír Dostál ◽

Zdeněk Stránský ◽

Jan Slouka

Keyword(s):

Potentiometric Titration ◽

Malonic Acid ◽

Methyl Ketone ◽

Dissociation Constants ◽

Weak Acids ◽

Titration Curves ◽

Derivatives Of

The dissociation constants of nitrophenoxazines in isobutyl methyl ketone (MIBK) were determined and correlated with the HNP values in acetone. Of the derivatives studied, the strongest acid is 1,3,7-trinitrophenoxazine (pK = 19.8), the weakest, 1-nitrophenoxazine (pK > 26). The compounds have no tendency to homo- or heteroconjugation, and were used as indicators in determination of weak acids in MIBK. Some derivatives of malonic acid and of 1,2,4-triazine as well as the intermediates used in their synthesis were determined; their HNP and pK values were established. The shape of the potentiometric titration curves can be of assistance in solving some structure problems.

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