$1.00
Description
Colorimetric determination of pH-value
A special mixture of indicator dyes assumes a characteristic color for every pH value within the range of the kit.
The pH value indicates whether a water reacts acidic, alkaline or neutral. It is determined by the concentration of hydrogen ions. All biological processes in water are tied to specific pH ranges. For municipal and industrial applications, too, the control of specific pH limits is important since e. g. the efficiency of sewage plants or the corrosive action of tap water on the pipes depend in the pH value.
