The Effect of Solvent on Equilibrium and Rate Constants. II. The Measurement and Correlation of Acid Dissociation Constants of Anilinium and Ammonium Salts in the System Ethanol—Water1,2a

1953 ◽  
Vol 75 (3) ◽  
pp. 559-565 ◽  
Author(s):  
Boris Gutbezahl ◽  
Ernest Grunwald
Keyword(s):  
Rate Constants ◽  
Dissociation Constants ◽  
Ammonium Salts ◽  
Acid Dissociation ◽  
Acid Dissociation Constants ◽  
Effect Of Solvent

Acid Dissociation Constants and Saponification Rate Constants for Some 1-Naphthoic and Thenoic Acid Derivatives

1954 ◽  
Vol 76 (20) ◽  
pp. 5131-5132 ◽  
Author(s):  
Charles C. Price ◽  
Edwin C. Mertz ◽  
John Wilson
Keyword(s):  
Rate Constants ◽  
Dissociation Constants ◽  
Acid Dissociation ◽  
Acid Dissociation Constants

Spectral behaviour and solvent effects of some aminoanthraquinone dyes

1982 ◽  
Vol 60 (3) ◽  
pp. 304-307 ◽  
Author(s):  
Safaa H. Etaiw ◽  
Morsi M. Abou Sekkina ◽  
Gad B. El-Hefnawey ◽  
Samy S. Assar
Keyword(s):  
Phenyl Ring ◽  
Dissociation Constants ◽  
Visible Region ◽  
Lone Pair ◽  
Acid Dissociation ◽  
Acid Dissociation Constants ◽  
Effect Of Solvent ◽  
Band Position ◽  
Spectral Behaviour ◽  
Ct Transitions

The electronic absorption spectrum of each of nineteen AAQ dyes has been studied in nine different organic solvents. The acid dissociation constants of dyes containing OH, COOH, or SO3H groups have also been determined experimentally. The spectra in ethanol display five bands in the uv region and one in the visible region (450–560 nm). This band is assigned to CT transitions of the type l–aπ which result from the interaction of the lone pair of the nitrogen atom with the phenyl ring of the carbonyl group. The CT nature of the band was supported theoretically and by the effect of solvent on band position.

Kinetics of acid-catalysed hydrolysis of the α and β Carbonato(4,7-dimethyltriethylenetetramine) cobalt(III) ions

1974 ◽  
Vol 27 (2) ◽  
pp. 269 ◽  
Author(s):  
DJ Francis ◽  
GH Searle
Keyword(s):  
Acid Hydrolysis ◽  
Perchloric Acid ◽  
Rate Constants ◽  
Dissociation Constants ◽  
Bond Cleavage ◽  
Acid Dissociation ◽  
Acid Dissociation Constants ◽  
Rate Laws ◽  
Kinetics Of ◽  
Hydrolysis Of

The synthesis and separation of the complexes α-[Co(dmtr)CO3] ClO4 and β-[Co(dmtr)CO3] C1O4,H2O (dmtr = 4,7-dimethyltriethylenetetramine or N,N'-bis(2-aminoethyl)-N,N'-dimethylethane-1,2-diamine) are described. The kinetics of the acid hydrolysis of both complexes, studied in perchloric acid at 25�C and μ = 1.0M (LiC1O4), follow rate laws of form -d[complex]dt=(k0 + k1[H+I)[complex] The values of ko and k1 for the K-complex are 1.0 x 10-3 s-1 and 1.8 x 10-2 1. mol-1 s-1 respectively, while for the β-complex the corresponding values are 3.6 x 10-5 s-1 and 5.6 x 10-4 1. mol-1 s-1. Comparisons of these rate constants with the values for similar carbonato(tetramine)cobalt(111) complexes previously studied suggest that the ko path could involve O-C bond cleavage in the present dmtr complexes. The values of the acid dissociation constants of dmtr,4HCl, determined by potentiometric titration, are 1.61, 5.86, 8.18 and 9.95.

Analyses of the Acid Dissociation Constants of Multisubstituted Diarylamines Measured in Solvents and Micellar System

1994 ◽  
Vol 67 (3) ◽  
pp. 800-806 ◽  
Author(s):  
Ze-jian Guo ◽  
Hideto Miyoshi ◽  
Toshio Fujita
Keyword(s):  
Dissociation Constants ◽  
Acid Dissociation ◽  
Micellar System ◽  
Acid Dissociation Constants

ChemInform Abstract: Determination of the Acid Dissociation Constants for Some Mycotoxins of the Alternaria alternata genus.

ChemInform ◽  
2010 ◽  
Vol 29 (52) ◽  
pp. no-no
Author(s):  
P. G. MOLINA ◽  
M. A. ZON ◽  
H. FERNANDEZ
Keyword(s):  
Alternaria Alternata ◽  
Dissociation Constants ◽  
Acid Dissociation ◽  
Acid Dissociation Constants

scholarly journals Acid dissociation constants and copper chelate formation constants of thiazolylthiourea derivatives

1961 ◽  
Vol 10 (10) ◽  
pp. 1122-1124 ◽  
Author(s):  
Toyozo UNO ◽  
Sumiyuki AKIHAMA ◽  
Kuniko TERADA
Keyword(s):  
Dissociation Constants ◽  
Formation Constants ◽  
Acid Dissociation ◽  
Copper Chelate ◽  
Acid Dissociation Constants ◽  
Chelate Formation
Sign in / Sign up

Export Citation Format

Share Document