ISO/R 909:1968 PDF
Hydrochloric acid for industrial use — Determination of iron content — 2,2'- Bipyridyl spectrophotometric method
Open preview (PDF)Hydrochloric acid for industrial use — Determination of iron content — 2,2'- Bipyridyl spectrophotometric methodTitle (English):
ISO/R 909:1968
Hydrochloric acid for industrial use — Determination of iron content — 2,2'- Bipyridyl spectrophotometric method
- Document status:
- Withdrawn
- Format:
- Electronic (PDF)
- Number of pages:
- 5
- Publication date:
- December 1, 1968
- Edition:
- ISO OTHER 909 edition 1 version 1
- ICS:
- 71.060.30
Description (English):
The principle consists in evaporation of the test portion, taking up by means of hydrochloric acid and reduction of iron(III) by means of hydroxylammonium chloride. Formation of an iron(II)-2.2'-bipyridyl complex in a buffered medium at a pH value between 4.5 and 6. Photometric measurement of the coloured complex at a wavelength of about 522 nm.
Technical details
- Technical committee
- ISO/TC 47 - Chemistry
- SKU
- ISO/R 909:1968
