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ionization constant

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ionization constant

[‚ī·ə·nə′zā·shən ¦kän·stənt]
(physical chemistry)
Analog of the dissociation constant, where k = [H+][A-]/[HA]; used for the application of the law of mass action to ionization; in the equation HA represents the acid, such as acetic acid.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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Acid dissociation constants of the thiohydantoin-pyrrolidine compounds containing methyl ester group as a substituent (1a-g), prepared according to the literature method [25], were determined potentiometrically at 25.0 ([+ or -] 0.1)[degrees]C in a 20% (v/v) ethanol-water mixture.
Acid dissociation constants were potentiometrically obtained from several series of independent measurements.
Determination of acid dissociation constants ([pK.sub.a]) of bicyclic thiohydantoin-pyrrolidine compounds in 20% ethanol-water hydroorganic solvent
Computer programs using data from multiwavelenght spectrophotometry are frequently used for the determination of acid dissociation constants [19, 20].
Spectrophotometric pKa Values of 3-(m-Nitrophenyl)-1,5-Diphenyl Formazan (MNF) and 3-(p-Nitrophenyl)-1,5-Diphenyl Formazan (PNF) in Different MeCN-Water Binary Mixtures
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