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Zinc Titration with EDTA

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Borek:
I am afraid I won't find it now. Besides, if I understand correctly your sample contains copper which needs to be masked or removed, my procedure didn't deal with that (could be it called for cyanides to mask traces of other metals, it was around 40 years ago so I don't remember details).

DeaZ96:

--- Quote from: Borek on September 12, 2022, 03:18:26 AM ---I am afraid I won't find it now. Besides, if I understand correctly your sample contains copper which needs to be masked or removed, my procedure didn't deal with that (could be it called for cyanides to mask traces of other metals, it was around 40 years ago so I don't remember details).

--- End quote ---
Yes that’s right,my sample is copper concetrate.
What if I use solution after electrolysis (which has no cu), do you think it can be worthy?
About my indicator which is around 18 years old,can it bring any problem?

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