Log 30 - Rev A - Redox Basics - Ready for Redox

The article discusses the redox process in "pickling" steel using a solution of ferric sulfate (Fe(+3)) and sulfuric acid. Iron dissolves as ferrous sulfate (Fe(+2)) and is monitored with an ORP electrode, which measures the electron exchange between Fe(+2) and Fe(+3) to maintain a high ratio, preventing steel pitting. It explains the electrode's function and mentions other redox pairs with high exchange rates used in analytical chemistry, like iodide/iodine and silver/silver ion.