Bought potassium cyanide powder from Cyanolab for our mining functions. The powder was specifically as explained and arrived promptly. Really endorse their support.” KCN is used as being a photographic fixer within the moist plate collodion method.The KCN dissolves silver where it has not been made insoluble from the developer. https://is-potassium-cyanide-dang93681.prublogger.com/29774610/is-potassium-cyanide-a-salt-an-overview