The pH properties of chlorophenol red are used to selectively determine the amount of chlorine dioxide in drinking water. Chlorophenol red selectively reacts with 0.1-1.9 mg l^-1 chlorine dioxide at pH 7.
Chlorophenol Red Indicator 99% Ar (ph 4.8- 6.4 Yellow To Purple) Chlorophenol red is a pH indicator. It is used as an optical transducer of acetyl cholinesterase inhibition by the analytes. Chlorophenol red is also used to selectively determine chlorine dioxide in drinking water.
The dissociation mechanism of Chlorophenol Red is similar to that of phenolphthalein meaning it can be used as a color indicator. ... The electrochemical properties of Chlorophenol red allows it to be a chromogenic label and can undergo oxidation creating several phenolic intermediates.