Manganese Dioxide Precipitation

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

Visão geral

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.

Participantes

Papel	Substância	Coeficiente	Estado
Reagente	Hydrogen Peroxide H₂O₂	1	(aq)
Reagente	Sodium Hydroxide NaOH	2	(aq)
Produto	Sodium Sulfate Na₂SO₄	1	(aq)
Produto	Water H₂O	2	(l)

Exemplo do cotidiano

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

Importância industrial

O dióxido de manganês é utilizado em pilhas secas e alcalinas, como catalisador, como pigmento e no tratamento de água para remoção de ferro e manganês.

Propriedades

Tipo: Precipitation
Reversível: Não
Energia: Exotérmico
ΔH: -200,0 kJ/mol

Reações relacionadas

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.