VISOCOLOR ECO Iron - colorimetric

Iron Test Background:

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.

VISOCOLOR ECO Range:

VISOCOLOR ECO presents a product group of colorimetric and titrimetric test kits which avoids hazardous substances wherever possible. With VISOCOLOR ECO even water constituents with low limiting values can be determined with sufficient accuracy. All VISOCOLOR ECO test kits are packed in an environment-friendly box and contain easy to understand instructions in 6 languages. Many of the colorimetric tests can also be used in conjunction with the PF-3 and PF-12 photometers for photometric evaluation of results.

Colorimetric Tests

Colorimetry with colour comparison card

• visual and photometric evaluation (PF-12Plus / PF-3)
• environment-friendly
• economically priced
• convenient handling
• higher accuracy and sensitivity
• with pictographic instructions
• reagent bottles with clear dosing instructions
• compensation of turbidities and colours
• refill packs available (refill packs do not include all equipment for test. The kit option should be purchased first time).

Titration Tests

Titration with drop counting

• visual evaluation
• environment-friendly, without toxic reagents
• economically priced
• convenient handling
• higher accuracy and sensitivity
• sharper color change due to separated
• dropping reagents
• reagent bottles with clear dosing instructions

VISOCOLOR ECO test kits:

• Alkalinity TA
• Aluminium
• Ammonium
• Bromine
• Calcium
• Carbonate hardness
• Chloride
• Chlorine
• Chlorine dioxide
• Chromium (VI)
• Copper
• Cyanide
• Cyanuric acid
• DEHA
• Detergents (cationic and anionic)
• Fluoride
• Hardness (total)
• Hydrazine
• Iron
• Manganese
• Nickel
• Nitrate
• Nitrite
• Oxygen
• pH
• Phosphate
• Potassium
• Silica
• Sulphate
• Sulphide
• Sulphite
• Swimming pool
• Zinc