- Elemental bromine is made by oxidation, removal of electrons from bromide ions in brine.
- In the case of ethanol, oxidation can occur under the action of certain species of bacteria.
- The silver metal gives up some of its electrons and forms silver sulfide in a process called oxidation.
- The drop in pH is probably mainly due to oxidation of upward diffusing sulphide.
- On ageing, textiles are usually damaged by oxidation or acid-catalysed hydrolysis.