O-TOLIDINE REAGENT (Free Chloride)

O-Tolidine Reagent (Free Chloride) is a laboratory reagent used to estimate free chlorine in water samples. It is suitable for routine water quality analysis where monitoring of chlorine level is important. The reagent reacts with free chlorine in the sample to give a characteristic color response. The concentration of chlorine can be estimated by comparing the intensity of the developed color with a suitable standard or reference scale.
This method provides a convenient means for checking water for free chlorine and may be used for routine analysis and laboratory testing. Proper sample handling and consistent reaction conditions are important to obtain reliable results.
It is supplied as a clear to faint yellow, colorless liquid. Reagents must be handled and stored following the standard laboratory instructions to preserve the integrity for the estimation of chlorine. Correct determination requires proper sampling, reagent handling and observation of the reaction in adequate time.

Used for estimating free chlorine levels in water samples through a colorimetric analytical method.