Revistes Catalanes amb Accés Obert (RACO)

Técnicas electroquímicas aplicadas al cálculo del número de agregación y de la constante de dimerización de colorantes.

Antonio Navarro Sentanyes

Resum


This paper envisages the potentialities derived from the electrochemical and, particularly, from the classic polarography applied t o the determination of the different medium aggregation states of dyes in solution and to the evaluation of the dimerization constants.
An extensive search of the technical literatere on this topic has been made as well as the analysis of both the aggregation of the C.I Direct Red 1 and the dimerization constants at pH = 4 and pH = 7, at temperatures of 25°C and 60°C.

Text complet: HTML