MACHEREY-NAGEL VISOCOLOR ECO Test kit Aluminium

MACHEREY-NAGEL VISOCOLOR ECO Test kit/ Aluminium

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.

Colorimetric Tests
Principle: Colorimetry with color comparison card

• visual and photometric evaluation
• (with PF-12 / photino)
• environment-friendly
• economically priced
• convenient handling
• higher accuracy and sensitivity
• with pictographic instructions
• reagent bottles with clear dosing instructions c
• ompensation of turbidities and colors
• refill packs available

Titration Tests
Principle: 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

MACHEREY-NAGEL VISOCOLOR ECO Test kit Aluminium
Colorimetric determination of aluminium

Colorimetric determination with chromazurol S.

Aluminium is the most common metal in our anthroposphere and after oxygen and silica even the most common element of the earth's crust. Because of its big affinity to oxygen, aluminium does not exist in elemental form in nature, but in different oxidized compounds.

In swimming pools, aluminium salts are used as flocculant for the water treatment. For drinking water, the WHO recommends a guide value of 0.2 mg/l Al³⁺. In accordance to the EU council guideline 98/83/EEC, the threshold value for drinking water is 0.2 mg/l Al³⁺. In natural water, the concentration of aluminium compounds is even low, but in waste water aluminium can appear in higher concentrations, e.g. at electroplating companies or paper mills. Different national regulations tolerate 2 - 3 mg/l Al³⁺ in effluents from various industries (metal, electroplating and printing industries).