Premium
Interaction Between Montmorillonite and Benzidine in Aqueous Solutions II. A General Kinetic Study
Author(s) -
Lahav N.,
Raziel S.
Publication year - 1971
Publication title -
israel journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.908
H-Index - 54
eISSN - 1869-5868
pISSN - 0021-2148
DOI - 10.1002/ijch.197100097
Subject(s) - chemistry , benzidine , absorbance , montmorillonite , kinetic energy , aqueous solution , suspension (topology) , reaction rate , inorganic chemistry , photochemistry , catalysis , organic chemistry , chromatography , mathematics , homotopy , pure mathematics , physics , quantum mechanics
A kinetic study of the formation of benzidine blue on montmorillonite was carried out by measuring the absorbance of the suspension at 580 nm. A preliminary study of the first stage of the reaction was conducted by stopped flow apparatus. The main change in the light absorbance took place during the first minutes of the reaction, but the reaction proceeded at a very slow rate for hours and days. The reaction rate became slower upon increasing the pH and upon addition of calgon (Na‐hexametaphosphate).