Permanganate Oxidation of Oxalic Acid
2MnO4− + 5C2O42− + 16H+ → 2Mn2+ + 10CO2 + 8H2O
अवलोकन
Permanganate oxidizes oxalate to CO₂ while Mn(VII) is reduced to Mn(II). This reaction is autocatalytic: the Mn²⁺ product catalyzes the reaction, so it starts slowly and accelerates dramatically. The purple permanganate is decolorized as the reaction proceeds. It is a classic redox titration used in analytical chemistry.
प्रतिभागी
| भूमिका | पदार्थ | गुणांक | अवस्था |
|---|---|---|---|
| अभिकारक | Oxalic Acid C₂H₂O₄ | 5 | (aq) |
| उत्पाद | Water H₂O | 8 | (l) |
| उत्पाद | Carbon Dioxide CO₂ | 10 | (g) |
रोजमर्रा का उदाहरण
This reaction demonstrates autocatalysis: the first drops of permanganate decolorize slowly, but later drops disappear almost instantly.
औद्योगिक महत्व
Permanganate-oxalate titration is used to standardize permanganate solutions and as a teaching example of autocatalytic kinetics.
गुण
- प्रकार
- Redox
- प्रतिवर्ती
- नहीं
- ऊर्जा
- ऊष्माक्षेपी
- ΔH
- -489.0 kJ/mol
संबंधित अभिक्रियाएँ
Iron(II) to Iron(III) Oxidation by Oxygen
Bleaching with Sodium Hypochlorite
Copper Reduction of Silver Ion
Aqua Regia Dissolving Gold
Cerium(IV) Reduction by Iron(II)
Copper Oxidation by Nitric Acid
Hypochlorite Oxidation of Hydrogen Peroxide
Hydrogen Peroxide as Oxidizing Agent (Acidic)
Hydrogen Peroxide Disproportionation
Displacement of Hydrogen from Acid by Magnesium
Frequently Asked Questions
What is the equation for Permanganate Oxidation of Oxalic Acid?
The balanced equation is: 2MnO₄⁻ + 5C₂O₄²⁻ + 16H⁺ → 2Mn²⁺ + 10CO₂ + 8H₂O.
What type of reaction is Permanganate Oxidation of Oxalic Acid?
Permanganate Oxidation of Oxalic Acid is a redox reaction.
Is Permanganate Oxidation of Oxalic Acid exothermic or endothermic?
Permanganate Oxidation of Oxalic Acid is exothermic (releases energy). The enthalpy change (ΔH) is -489.0 kJ/mol.