Alkaline hydrolysis of acetylsalicylic acid in cationic micelles of N-cetyl-N-ethyl-N,N-dimethylammonium bromide

1996 ◽  
Vol 106 (1) ◽  
pp. 1-10 ◽  
Author(s):  
M.J. Segovia ◽  
F. Martinez ◽  
J.M. Alvarez
Keyword(s):  
Acetylsalicylic Acid ◽  
Alkaline Hydrolysis ◽  
Cationic Micelles ◽  
Hydrolysis Of

Inhibition effect of cationic micelles on the hydrolysis of acetylsalicylic acid

1983 ◽  
Vol 80 ◽  
pp. 543-545 ◽  
Author(s):  
S. Vera ◽  
E. Rodenas ◽  
F. Ortega ◽  
C. Otero
Keyword(s):  
Acetylsalicylic Acid ◽  
Inhibition Effect ◽  
Cationic Micelles ◽  
Hydrolysis Of

scholarly journals Kinetics and Mechanism of Alkaline Hydrolysis of N-(o-Aminophenyl)Phthalimide in the Presence and Absence of Cationic Micelles and Sodium Salts of Aliphatic Acids

2018 ◽  
Vol 43 (2) ◽  
pp. 144-156
Author(s):  
Wan Hamdah Wan Ahmad ◽  
Ibrahim I. Fagge ◽  
Yoke-Leng Sim ◽  
M. Niyaz Khan
Keyword(s):  
Alkaline Hydrolysis ◽  
Total Concentration ◽  
Sodium Formate ◽  
Exchange Constant ◽  
Aliphatic Acid ◽  
Empirical Constant ◽  
Cationic Micelles ◽  
The Relationship ◽  
Hydrolysis Of ◽  
Inert Salt

Pseudo first-order rate constants, k obs, for the alkaline hydrolysis of N-( o-aminophenyl) phthalimide, obtained at constant [CTABr]T (total concentration of cetyltrimethylammonium bromide) and varying concentrations of inert salt MX (MX = sodium formate, sodium acetate, sodium propanoate, sodium butyrate, sodium valerate and sodium hexanoate) follow the relationship: [Formula: see text], where θ and KX/S are empirical constants and S = HO-. The values of KX/S for each aliphatic acid decrease with an increase in [CTABr]T. This relationship gives an empirical constant whose magnitude is the measure of the ability of an ion, X-, to expel another counterion S-, from the cationic micellar surface to the bulk aqueous phase. The values of the empirical constant, KX/S, are used to derive the ion exchange constant, KBrX.

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