Some Experiments for M. Sc in Inorganic Chemistry
Standardization of potassium permanganate by oxalic acid: Commercially available potassium permanganate generally contains impurity. Thus it cannot be used as a primary standard. In order to make standard potassium permanganate solution it requires standardized by a primary standard.
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alpha.chem.umb.edu• Potassium Permanganate (KMnO. 4) MnO. 4-+ 8H + +5e→Mn. 2+ +4H. 2. O E. o =1.507V (pH<1) MnO. 4-+ 4H + +3e→MnO. 2 (s)+2H. 2. O E. o =1.692V (pH≈7) In alkaline solution: MnO. 4-+ e → 2MnO. 4-• Preparation, standardization and storage – Not a primary standard, MnO. 2. impurity – To prepare, dissolve KMnO. 4. in DI water, boil in ...
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