29 PRIMARY AND SECONDARY STANDARDS

zAnother example is potassium permanganate (KMnO 4) very often as secondary standard. It is a good oxidizing agent or in other words it is reactive so less stable. More often due to its reactivity, its own oxidized product manganese oxide (MnO 2) contaminates the content. That’s why it is unsuitable for being a primary standard.

  Standards, Primary, Secondary, Potassium, Potassium permanganate, Permanganate, 29 primary and secondary standards