Determination of Stoichiometric Dissociation Constants of Glycolic Acid in Dilute Aqueous Sodium or Potassium Chloride Solutions at 298.15 K
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Jaakko I. Partanen
Equations were determined for the calculation of the stoichiometric (molality scale) dissociation constant, Km, of glycolic acid in dilute aqueous NaCl and KCl solutions at 298.15 K from the thermodynamic dissociation constant, Ka, of this acid and from the ionic strength, Im, of the solution. The salt alone determines mostly the ionic strength of the solutions considered in this study, and the equations for Km were based on the single-ion activity coefficient equations of the Hückel type. The data measured by potentiometric titrations in a glass electrode cell and the literature data obtained by Harned cells were used in the estimation of the parameters for the Hückel equations of glycolate ions. By means of the calculation method based on the Hückel equations, Km can be obtained almost within experimental error at least up to Im of about 0.5 mol kg-1 for glycolic acid in NaCl and KCl solutions.
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- NMR Study of Self-Association of Acetanilide in Chloroform, Acetone, Acetonitrile and Dimethyl Sulphoxide
- Reaction Paths in Concurrence: The Electrochemical Hydrogen Reaction on GaAs(111)A- and GaAs(110)-Surfaces A Quantumchemical Approach
- Structure, Diffusivity and Linear Rheology of Sodium Ether Dodecylsulfate in Aqueous Solutions – (I)
- Determination of Stoichiometric Dissociation Constants of Glycolic Acid in Dilute Aqueous Sodium or Potassium Chloride Solutions at 298.15 K
- Dissociation Constants of Substituted Aryl Azo Barbituric and Thiobarbituric Acids
Articles in the same Issue
- A Vibrational Spectroscopic Study of Ion Solvation and Association in Lithium Perchlorate/γ-Butyrolactone Electrolyte
- NMR Study of Self-Association of Acetanilide in Chloroform, Acetone, Acetonitrile and Dimethyl Sulphoxide
- Reaction Paths in Concurrence: The Electrochemical Hydrogen Reaction on GaAs(111)A- and GaAs(110)-Surfaces A Quantumchemical Approach
- Structure, Diffusivity and Linear Rheology of Sodium Ether Dodecylsulfate in Aqueous Solutions – (I)
- Determination of Stoichiometric Dissociation Constants of Glycolic Acid in Dilute Aqueous Sodium or Potassium Chloride Solutions at 298.15 K
- Dissociation Constants of Substituted Aryl Azo Barbituric and Thiobarbituric Acids
