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From time to time we have to use our copper cyanide filter chambers to filter our nickel. What is the simplest method to check for cyanide residue after cleaning and leaching?
Max T. Faeth
Highland Plating - Los Angeles, California
Try looking in your lab equipment suppliers book under water testing. In UK BDH do a simple kit that goes down to ppm. (ideal for effluent as well)
surface treatment shop - Stroud, Glos, England
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