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    ชุดทดสอบเหล็กในน้ำ (0.0- 0.20 ppm.)

    VISOCOLOR® HE Iron Principle:High sensitivity colorimetry with comparator block and colour comparison disc• visual evaluation
    • environment-friendly, without toxic reagents
    • economically priced
    • convenient handling
    • highest accuracy due to extremely narrow gradation
    • highest sensitivity down to 0.002 mg/l due to longer
    • measuring tubes
    • reagent bottles with clear dosing instructions
    • compensation of turbidities and colours
    • refill packs available

    Colorimetric determination of iron

    Triazine method: iron(II) ions react with a triazine derivative to form a violet complex. Iron(III) ions are reduced and thus also determined.

    Data and ordering information
    Cat. No. 920 040
    Type high sensitive test kit

    0.0 · 0.01 · 0.02 · 0.03 · 0.04 · 0.05 ·
    0.07 · 0.10 · 0.15 · 0.20 mg/l Fe

    Sufficient for 300 determinations
    Shelf life at least 24 months
    Sea water suitability


    Detectable with PF-11 no

    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.


  • Requesting a Quotation and Ordering Products

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    Klong 1, Klong Luang, Pathumthani 12120 Thailand. 

    Tel.  02-191-3928 Fax 02-191-3929

    For more information please contact 081-847-6768 (Ms. Nareerat) IDLine: @alltestkit

    E-mail :


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