Manganese(IV) Oxide
Manganese(IV) Oxide (manganese dioxide, MnO2, CAS 1313-13-9), 80–92%, supplied wholesale by Zyntex. For alkaline and zinc-carbon batteries, oxidation reactions, glass and ceramics, and water treatment media. CoA and SDS.
Description
Manganese(IV) Oxide Product Overview
Manganese dioxide (MnO2) is a blackish-brown powder or granulate that does not dissolve in water. It occurs naturally as the mineral pyrolusite. Commercial grades range from natural ore concentrates with about 80% MnO2 to synthetic electrolytic manganese dioxide (EMD) with more than 90%.
The largest use is in batteries: EMD is the cathode material of alkaline batteries and, together with Zinc Chloride electrolytes, of zinc-carbon cells. Chemists use active MnO2 as a selective oxidant, for example to oxidize allylic and benzylic alcohols. Glass producers add it to decolorize glass, while brick and ceramic producers use it as a brown to black colorant.
In water treatment, manganese dioxide-coated filter media remove iron, manganese and hydrogen sulfide. For other manganese compounds, see Manganese(II) sulfate 1-hydrate and Manganese(II) chloride.
Key Applications of Manganese(IV) Oxide
Main application areas:
🔋 Batteries
Cathode material for alkaline and zinc-carbon batteries.
🧪 Oxidant
Selective oxidant in organic synthesis.
🏺 Glass and Ceramics
Decolorizer for glass and colorant for bricks and glazes.
💧 Water Treatment
Filter media for iron and manganese removal.
Manganese(IV) Oxide Technical Specifications
| Parameter | Standard Value |
|---|---|
| Product Name | Manganese(IV) Oxide (MnO2) |
| CAS Number | 1313-13-9 |
| EC Number | 215-202-6 |
| Molecular Formula / Weight | MnO2 / 86.94 g/mol |
| Assay (MnO2) | 80% – 92% (Industrial/Battery Grades) |
| Appearance | Blackish-brown powder/granules |
| Documents | CoA and SDS with every lot |
⚠️ Safety & Handling: Harmful if swallowed or inhaled; prolonged inhalation of manganese dust may damage the nervous system. Strong oxidizer in contact with combustible materials. Avoid dust formation, use local exhaust ventilation, and wear dust protection, gloves and eye protection. Store in a dry place, away from acids and combustible materials. Always consult the Safety Data Sheet (SDS) for full classification and handling instructions.
Frequently Asked Questions
What is the difference between natural and electrolytic manganese dioxide?
Natural MnO2 comes from ore and contains about 80% MnO2. Electrolytic manganese dioxide (EMD) is synthetic, purer and more electrochemically active, and is used in batteries.
Which grade do I need for oxidation reactions?
Activated MnO2 grades with high surface area work best as oxidants. Please mention the application when requesting a quote.
How can I get a price and documents?
Prices depend on quantity, packaging and destination. Contact us with your required volume to receive a quotation together with the CoA and SDS.
