MN VISOCOLOR® ECO test kit iron 2, 0.04-1.0 mg/l Fe


MN VISOCOLOR® ECO test kit iron 2, 0.04-1.0 mg/l Fe

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VISOCOLOR® ECO Iron: Colorimetric determination of iron. Features: • Triazine method: iron(II) ions react with a triazine derivative to form a violet complex. • Iron(III) ions are reduced and thus also determined. • Natural waters as well as waste waters often contain some iron. • It can be present as Fe(II) or Fe(III) ions if the pH value of the water is below 3 or if the water is free of oxygen. • At higher pH values Fe(III) forms an insoluble oxyhydrate. • Frequently the sample is in a transition state with finely dispersed iron oxides. • In waste water and natural water containing humic acids iron is often present in the form of a complex salt. • The VISOCOLOR® test kits only determine iron which is present in dissolved form as Fe2+ or Fe3+ ions. • Iron complexes are not covered unless they are decomposed by oxidation with nitric acid and sulphuric acid. Specifications: • Type: colorimetric test kit • Range: 0 · 0.04 · 0.07 · 0.10 · 0.15 · 0.20 · 0.30 ·0.50 · 1.0 mg/l Fe • Sufficient for: 100 determinations • Shelf life at least: 2 years • Sea water suitability: yes • Detectable with PF-12: yes

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