Preliminary reduction of the iron(III) by hydroxylammonium chloride, if required, suppression of the interference of tin by oxalic acid. Formation of the coloured iron(III)-2,2'-dipyridyl complex in a buffered medium. Photometric measurement of the coloured complex at a wavelength of about 522 nm.

General information

  • Status :  Withdrawn
    Publication date : 1976-04
  • Edition : 1
    Number of pages : 4
  • :
    ISO/TC 47
  • 71.060.01
    Inorganic chemicals in general

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