Manganese Dioxide Precipitation

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

Tổng quan

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.

Người tham gia

Vai trò	Chất	Hệ số	Trạng thái
Chất phản ứng	Hydrogen Peroxide H₂O₂	1	(aq)
Chất phản ứng	Sodium Hydroxide NaOH	2	(aq)
Sản phẩm	Sodium Sulfate Na₂SO₄	1	(aq)
Sản phẩm	Water H₂O	2	(l)

Ví dụ thực tế

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

Tầm quan trọng công nghiệp

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.

Tính chất

Loại: Precipitation
Thuận nghịch: Không
Năng lượng: Tỏa nhiệt
ΔH: -200,0 kJ/mol

Phản ứng liên quan

Aluminum Hydroxide Precipitation Barium Sulfate Precipitation Cadmium Sulfide Precipitation (Yellow) Calcium Phosphate Precipitation (Bone Mineral) Chromium(III) Hydroxide Precipitation Lead Carbonate Precipitation Magnesium Hydroxide Precipitation Copper Sulfide Precipitation Cobalt(II) Hydroxide 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.