bleaching reagent
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Bleaching Reagent
Firstdropthe1dropsofbleachwaterintothesolutionto be tested by20ml, and then drop the residual chlorine reagent The water color immediately turns yellow.
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Firstdropthe1dropsofbleachwaterintothesolutionto be tested by20ml, and then drop the residual chlorine reagent The water color immediately turns yellow.
Email Details