Résumé
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.
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État actuel: AnnuléeDate de publication: 1971-05
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Edition: 1Nombre de pages: 4
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- ICS :
- 71.060.30 Acides
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