What is the name of the analytical method that uses KMnO4 as a titrant?

The analytical method that utilizes KMnO4 (potassium permanganate) as a titrant is classified as a redox titration. This is because KMnO4 is a strong oxidizing agent, and the titration involves the transfer of electrons between the titrant and the analyte. In a typical redox titration using KMnO4, the permanganate ion (MnO4^-) is reduced to Mn^2+ in acidic conditions, while the analyte (often a reducing agent) is oxidized.

The endpoint of the titration is indicated by a distinct color change; the deep purple color of KMnO4 persists once all the reducing agents in the solution have reacted, signaling the completion of the titration. This characteristic makes redox titrations visually easy to monitor compared to other types of titrations.

In contrast, neutralization titrations specifically involve an acid-base reaction, complexometric titrations involve the formation of a complex between a metal ion and a ligand, and gravimetric analysis is a method in which the amount of an analyte is determined by the mass of a solid formed. Therefore, the use of KMnO4 clearly aligns with redox tit