Iodine pentoxide

Iodine pentoxide, also known as iodine(V) oxide and diiodine pentoxide is a chemical compound. Its chemical formula is I2O5. It has iodine and oxide ions. The iodine is in its +5 oxidation state.
Properties.
Iodine pentoxide is a white solid. It breaks down to iodine and oxygen when heated. It reacts with carbon monoxide to make carbon dioxide and iodine. It is a strong oxidizing agent. It reacts with water to make iodic acid.
Preparation.
Iodine pentoxide is made by heating iodic acid to in dry air.
Uses.
It is used to see how much carbon monoxide is in a sample of gas.