Reacciones fotoquímicas en Química Analítica. Determinación de peroxodisulfatos

Authors

  • M.S García
  • C. Sánchez Pedreño
  • M.T. Sierra

Abstract

A new method for the determination of peroxidisulphate based on the precipitation of S04Ba from homogenous solutions is presented. The reduction of SzOs^ to SO/" is produced by the action of anión iodide generated «in situ» by the photochemical reaction between EDTA and iodine.The main experimental variables such as pH, ilumination, temperature and concentrations of reagents for the gravimetric determination. The results are accurate enough from 94,93 to 189,9 mg of SjOs^'.

Published

22-04-2010

Issue

Section

Artículos