ISO 2460:1973
Sodium hydrogen carbonate for industrial use; Determination of iron content; 1,10- Phenanthroline photometric method

Standard No.

ISO 2460:1973

Release Date

1973

Published By

International Organization for Standardization (ISO)

Latest

ISO 2460:1973

Scope

The method is applicable to products having a content equal to or greater than 0,1 mg/kg. The principle concists in reduction of the iron(III) by hydroxylammoniumchloride. Formation of a iron(II)-1,10-phennanthroline complex in a buffered solution. Photometric measurement of the coloured complex at a wavelength of about 510 nm.

ISO 2460:1973 history

• 1973 ISO 2460:1973 Sodium hydrogen carbonate for industrial use; Determination of iron content; 1,10- Phenanthroline photometric method