Home/Sitemap  ·    Search   ·   you are here: Forum =>letter 16640 Copper plating solution analysis, Potassium Cyanide ++ I have a problem with an analysis. Can anybody help me with how to test Potassium Cyanide in Copper plating solution? Avel Berroya - Harbor City, California ++ Avel Berroya, you can have the analysis from metalfinishing.com, then go to chemical analysis of plating solutions or control, analysis and testing. Popat Patel     plating shop Roseville, Michigan  Ed. note: The Metal Finishing Guidebook is no longer on line, but follow the link to hard copy. ++ That's not hard. Combine 5.0 ml of plating bath with about 100 ml of distilled water in a flask. Add about a gram of potassium iodide, and swirl the flask until it is dissolved. Then, titrate the mixture with 0.1 N silver nitrate solution. The endpoint is a persistant yellowish white cloudiness. Then, multiply the mls silver nitrate used by 0.347 for "free" potassium cyanide, in ounces per gallon. Dave Wichern - The Bronx, New York April 2, 2009 How to analyse hydroxide in cyanide copper (plating in zinc)? Olga Tubin Lab technician - Canada