LabChem® Tolidine (ORTHO) 0.1%

LabChem® TOLIDINE (ORTHO) 0.1% is a ready-to-use solution of o-tolidine, a reagent that develops a yellow color in the presence of chlorine, historically used as a colorimetric field test for chlorine residual in water. Providing the reagent pre-dissolved at a consistent concentration removes the need for in-house preparation. Its ready-mixed formulation supports consistent color development from batch to batch.

It is commonly used as a rapid field and laboratory test reagent for chlorine residual in water and swimming pool testing. Its consistent, ready-mixed formulation supports reproducible results across testing sessions. This reagent should be handled, stored, and used according to established laboratory safety procedures and the manufacturer's instructions.

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