Exploratory study on sequestration of some essential metals by indigo carmine food dye

• Egile Nagusiak: Thalita Boldrin Zanoni (Egilea), Arnaldo Alves Cardoso (Egilea), Maria Valnice Boldrin Zanoni (Egilea), Antonio Aparecido Pupim Ferreira (Egilea)
• Formatua: Liburua
• Argitaratua: Universidade de São Paulo, 2010-12-01T00:00:00Z.
• Gaiak: article
• Sarrera elektronikoa: Connect to this object online.

Indigo carmine forms a stable complex with different ions, and the stability constant of the complexes were evaluated as log K equal to 5.75; 5.00; 4.89 and 3.89 for complexes with Cu(II), Ni(II), Co(II) and Zn(II) ions, respectively, in 0.1 mol L-1 carbonate buffer solution at pH 10. The interactio...