Potassium Iodide: Aqueous potassium iodide (KI) has a light orange-brown colour. It is used for testing the presence of oxidising agents; It is also used in iodometric solutions.

What indicator is used in iodometry?

The indicator that is usually chosen for titrations involving iodine (triiodide) is starch. Starch forms a dark blue complex with iodine. The end point in iodimetry corresponds to a sudden color change to blue.

What is the titrant used in iodometry?

The term “iodometry” describes the type of titration that uses a standardised sodium thiosulfate solution as the titrant, one of the few stable reducing agents where oxidisation of air is concerned.