is potassium cyanide legal for Dummies
Cyanide is especially generated with the mining of silver and gold: It can help dissolve these metals letting separation from the other solids. While in the cyanide method, finely floor higher-grade ore is mixed with the cyanide (in a ratio of about one:500 pieces NaCN to ore); low-grade ores are stacked into heaps and sprayed with a cyanide soluti