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Need Testing method

How can I test residual chlorine in water

  1. Kamlesh Banote reply
  2. Mehak reply

    I am using potassium iodide,starch and acetic acid for residual chlorine and titrate with 0.01sodium thiosulphate..but acc to procedure color change in a night but my sample doesn…

  3. Mehak reply

    Thanks for this but I have to follow this method in which KI ,acetic acids and starch are used

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