Subscribe to updates
ISO 2992:1974
Ammonium sulphate for industrial use -- Determination of iron content -- 2,2'- Bipyridyl photometric method
Media and price
| Price | Language | ||
|---|---|---|---|
| CHF 44,00 | Add to basket | ||
| Paper | CHF 44,00 | Add to basket |
Abstract
Applicable to Fe contents of equal to or more than 0.0001 % (m/m). The reaction bases on the reduction of iron(III) by hydroxylammonium chloride. Formation of the complex between iron(II) and 2,2'-dipyridyl in a buffered medium (pH value between 4.5 and 6). Photometric measurement of the coloured complex at a wavelength of about 522 nm. Has also been approved by the IUPAC.
