Potentiometric determination of the base strength of amines in non-protolytic solvents

HK Hall Jr - The Journal of Physical Chemistry, 1956 - ACS Publications
X), where X is the fraction neutral-ized, against the observed millivoltage value. The plots of
all solvents except ethylene dichloride are linear. The simple interpretation of E\/t as a …

Acidity i Nonaqueous Solvent. II. Picolinium Ions in Dimethylformamide Solution

CD Ritchie, GH Megerle - Journal of the American Chemical …, 1967 - ACS Publications
Free energies, enthalpies, and entropies of ionization for a series of «-substituted 4-
picolinium ions in anhydrous dimethylformamide solution havebeen determined by the …

Properties of bases in acetonitrile as solvent. II. The autoprotolysis constant of acetonitrile

JF Coetzee, GR Padmanabhan - The Journal of Physical …, 1962 - ACS Publications
Introduction It is well known that acetonitrile is an excellent differentiating solvent for acid-
base titrations. The main cause of the stronglydifferentiating nature of acetonitrile is the …

Acidity in nonaqueous solvents. VI. Further studies of weak acids in dimethyl sulfoxide solution

CD Ritchie, RE Uschold - Journal of the American Chemical …, 1968 - ACS Publications
The potentiometric method, employing the glass electrode, has been applied to the
determination of the acidities of a series of benzoic acids, several hydrocarbon acids, and …

THE POTENTIOMETRIC MEASUREMENT OF ACID DISSOCIATION CONSTANTS AND pH IN THE SYSTEM METHANOL-WATER. pKA VALUES FOR CARBOXYLIC …

AL Bacarella, E Grunwald, HP Marshall… - The Journal of Organic …, 1955 - ACS Publications
In recent years, acid dissociation constants have become increasingly important as tools in
determining molecular structure and in solving questions of organic theory (1, 2). Many …

Protonation constants of very weak uncharged bases in acetonitrile

IM Kolthoff, MK Chantooni - Journal of the American Chemical …, 1973 - ACS Publications
Acetonitrile is much more suitable for determination of the protonation constant K¡ BH+ of
very weak bases than is water (sulfolane, which is a considerably weaker base than AN, is …

Ionization constants of acid-base indicators in methanol

IM Kolthoff, LS Guss - Journal of the American Chemical Society, 1938 - ACS Publications
V/„/n in which a denotes the activity of the component, c the concentration, Ib the basic form
and Ia the acid form of the indicator, A and B the acid and basic forms of the buffer, K'the …

Acid–Base Equilibria in Aqueous and Non-aqueous Solutions.

LJ Minnick, M Kilpatrick - Journal of Physical Chemistry, 1939 - ACS Publications
In a previous paper relative acid strengths in n-butyl alcohol (13), determined by the
colorimetric method, were reported at low ion concentrations. These results were used …

The relative strengths of bases in dioxan-water mixtures

JC James, JG Knox - Transactions of the Faraday Society, 1950 - pubs.rsc.org
Measurements of base strength are reported for p-toluidine, aniline, p-chloroaniline and m-
nitroaniline in dioxan-water mixtures at 25'C. The effect of a substituent on the variation in …

Properties of bases in acetonitrile as solvent—III: Hydrogen bonding between protonated and free nitrogen bases

JF Coetzee, GR Padmanabhan, GP Cunningham - Talanta, 1964 - Elsevier
In acetonitrile as solvent, the stronger nitrogen bases, B, form 1: 1 and also higher hydrogen-
bonded complexes with their conjugate acids, BH+. Formation constants for these …