Abstract 

The method is applicable to the determination of iron contents greater than 0,0001 % (m/m). The principle consists in evaporation of a test portion, taking up by means of hydrochloric acid and reduction of iron(III) by means of hydroxylammonium chloride. Formation of iron(II)-2,2' -dipyridyl complex in ammonium acetate medium. Photometric measurement of the coloured complex at a wavelength of about 522 nm.


General information

  • Status :  Withdrawn
    Publication date : 1971-05
  • Edition : 1
    Number of pages : 4
  • :
    ISO/TC 47
    Chemistry
  • 71.060.30
    Acids

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