THE BEST SIDE OF HOW MUCH IS CYANIDE

Complementary to its reactivity towards acids, KOH assaults oxides. Consequently, SiO2 is attacked by KOH to give soluble potassium silicates. KOH reacts with carbon dioxide to provide potassium bicarbonate:KCN is used for a photographic fixer within the wet plate collodion approach.The KCN dissolves silver where it has not been made insoluble b