Manganese Dioxide Precipitation

MnSO4 + 2NaOH + H2O2 → MnO2↓ + Na2SO4 + 2H2O

अवलोकन

Manganese(II) sulfate is oxidized by hydrogen peroxide in basic solution to form a dark brown precipitate of manganese dioxide. Mn is oxidized from +2 to +4. MnO₂ is highly insoluble and is a very effective catalyst for H₂O₂ decomposition.

प्रतिभागी

भूमिका पदार्थ गुणांक अवस्था
अभिकारक Hydrogen Peroxide H₂O₂ 1 (aq)
अभिकारक Sodium Hydroxide NaOH 2 (aq)
उत्पाद Sodium Sulfate Na₂SO₄ 1 (aq)
उत्पाद Water H₂O 2 (l)

रोजमर्रा का उदाहरण

MnO₂ is the black substance in standard alkaline batteries that serves as the cathode material.

औद्योगिक महत्व

Manganese dioxide is used in dry cell and alkaline batteries, as a catalyst, as a pigment, and in water treatment for iron and manganese removal.

गुण

प्रकार
Precipitation
प्रतिवर्ती
नहीं
ऊर्जा
ऊष्माक्षेपी
ΔH
-200.0 kJ/mol

संबंधित अभिक्रियाएँ

Aluminum Hydroxide Precipitation Barium Carbonate Precipitation Barium Sulfate Precipitation Cadmium Sulfide Precipitation (Yellow) Calcium Fluoride Precipitation (Fluorite) Calcium Phosphate Precipitation (Bone Mineral) Chromium(III) Hydroxide Precipitation Lead Carbonate Precipitation Lead Chloride Precipitation Iron(III) Hydroxide Precipitation

Frequently Asked Questions

What is the equation for Manganese Dioxide Precipitation?
The balanced equation is: MnSO₄ + 2NaOH + H₂O₂ → MnO₂↓ + Na₂SO₄ + 2H₂O.
What type of reaction is Manganese Dioxide Precipitation?
Manganese Dioxide Precipitation is a precipitation reaction.
Is Manganese Dioxide Precipitation exothermic or endothermic?
Manganese Dioxide Precipitation is exothermic (releases energy). The enthalpy change (ΔH) is -200.0 kJ/mol.