Complementary to its reactivity toward acids, KOH assaults oxides. So, SiO2 is attacked by KOH to give soluble potassium silicates. KOH reacts with carbon dioxide to present potassium bicarbonate:KCN is used as being a photographic fixer while in the soaked plate collodion course of action.The KCN dissolves silver where it hasn't been made insol