Title of article
Investigation of Mo(VI) monomer-dimer equilibrium in highly acidic solutions by UV absorbance spectroscopy using refined numerical processing
Author/Authors
Esbelin، E. نويسنده , , Gareil، P. نويسنده , , Masson، M. نويسنده , , Emin، J.L. نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2001
Pages
-298
From page
299
To page
0
Abstract
The chemical forms of molybdenum(VI) in highly acidic media (0.5-3M HClO4) were investigated by UV absorbance spectrometry at 25°C, confirming the existence of dimeric forms. Comparing the results obtained for various HClO4/NaClO4 mixtures showed that water activity has a greater effect on the dimerization equilibrium than the acidity. A conditional dimerization constant Kd´ can be defined as a function of the perchloric acid concentration. New numerical methods were used to estimate the value of Kd´, which was found to vary according to an empirical law:
Keywords
Benzoate sensitive electrode , Potentiometry , Beverages analysis.
Journal title
Analytica Chimica Acta
Serial Year
2001
Journal title
Analytica Chimica Acta
Record number
49317
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