Description

Manganese Dioxide CAS NO 1313-13-9 is a versatile inorganic compound widely recognized as a powerful oxidizing agent and a key source of manganese. Its primary commercial value lies in its critical role as a cathode material in dry-cell batteries, particularly alkaline and zinc-carbon types, ensuring reliable power for countless devices. This high-purity chemical is essential for manufacturers in the battery industry, water treatment sector for iron and manganese removal, and as a precursor in the production of ferrites, ceramics, and specialty chemicals.

Application

• Primary Battery Manufacturing: The predominant use is as the cathode depolarizer in alkaline and Leclanché (zinc-carbon) batteries.
• Water Treatment & Filtration: Employed in filter media to catalytically oxidize and remove dissolved iron, manganese, and hydrogen sulfide from groundwater.
• Chemical Synthesis & Catalyst: Serves as an oxidizing agent in organic synthesis and as a catalyst in various industrial chemical processes.
• Ferrite Production: A crucial raw material in manufacturing manganese-zinc ferrites used in electronic components like transformers and inductors.
• Glass & Ceramics Industry: Used as a colorant (producing amethyst and black colors) and for decolorizing glass by removing green tints caused by iron impurities.
• Welding Electrode Coatings: A component in flux coatings for welding rods to improve arc stability and weld metal properties.
• Animal Feed Supplement: Provides an essential trace mineral (manganese) in nutritional premixes for livestock and poultry.

Basic Information

Product Name	Manganese Dioxide
CAS No.	1313-13-9
Molecular Formula	MnO2
Molecular Weight	86.94 g/mol
Synonyms	Manganese(IV) Oxide; Pyrolusite; Manganese Peroxide; Manganese Binoxide; Black Manganese Oxide; Battery-Grade Manganese Dioxide; Electrolytic Manganese Dioxide (EMD); Chemical Manganese Dioxide (CMD)
EINECS	215-202-6

Quality Control

Our Manganese Dioxide is produced and tested under stringent quality management protocols to ensure batch-to-batch consistency and performance for your specific application. We provide material that meets relevant industry specifications for battery-grade, technical, and chemical process applications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is supplied with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong reducing agents and organic compounds. Keep container tightly sealed when not in use to minimize exposure to moisture and atmospheric contaminants.

Specification

Item	Specification
Appearance	Brownish-black powder
Identification (IR/XRD)	Conforms
Assay (as MnO2)	≥ 90.0 %
Manganese (Mn) Content	≥ 60.0 %
Moisture (Loss on Drying)	≤ 3.0 %
pH (5% Slurry)	4.0 - 7.0
Residue on Sieve (325 mesh)	≤ 1.0 %
Heavy Metals (as Pb)	≤ 0.005 %

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.