Dehydrogenated Electrolytic Manganese
CAS No.7439-96-5
Mn molecular weight: 54.94; reddish grey or silver color;
fragile metal; soluble in dilute acid; rusty in the air; relative weight is 7.43;
melting point is 1245℃; boiling point is 2150℃; similar to iron but more fragile;
positive in electrical property; easy to solve in acid and the surface will be oxidized in the air.
Dehydrogenated Electrolytic Manganese Metal Flakes Specification
Symbol |
Chemical Component |
||||||
Mn≥(%) |
Foreign Mat.≤ppm |
||||||
Fe | C | Si | P | S | H | ||
UMDEM3N | 99.9 | 20 | 100 | 100 | 15 | 400 | 60 |
Packaging: Drum (50kg)
What is Dehydrogenated Electrolytic Manganese used for?
Applications of Dehydrogenated Electrolytic Manganese
Dehydrogenated Electrolytic Manganese (DEM) is a high-purity manganese product prized for its exceptional deoxidizing, alloying, and surface protection properties. Its low hydrogen content and controlled composition make it indispensable across metallurgical, manufacturing, and chemical industries. Below are its key uses:
1. Steelmaking & Specialty Alloys
- Deoxidizing Agent:
- Removes dissolved oxygen from molten steel during production, minimizing porosity and defects in final products.
- Critical for high-quality stainless steel, tool steel, and high-strength low-alloy (HSLA) steel manufacturing.
- Alloying Additive:
- Enhances mechanical properties (e.g., hardness, tensile strength) and corrosion resistance in specialty steels.
- Improves machinability and thermal stability in steel used for automotive, aerospace, and construction applications.
2. Non-Ferrous Metal Alloys
- Aluminum & Copper Alloys:
- Added to aluminum alloys to refine grain structure and boost strength, particularly in automotive engine components and aerospace frames.
- Enhances electrical conductivity and wear resistance in copper alloys for electrical connectors and heat exchangers.
- Magnesium Alloys:
- Used in lightweight magnesium alloys for 3C electronics (computers, cameras, communications) and portable devices.
3. Welding & Surface Engineering
- Welding Electrode Coatings:
- Acts as a flux component in electrode coatings to stabilize arcs, prevent oxidation, and improve weld pool fluidity.
- Ensures clean, high-integrity welds in pipelines, shipbuilding, and heavy machinery.
- Thermal Spray Coatings:
- Applied as a protective coating on industrial equipment to resist wear, corrosion, and high-temperature degradation.
4. Chemical & Industrial Processes
- Catalyst Production:
- Serves as a precursor in synthesizing manganese-based catalysts for chemical reactions, including ammonia production and hydrocarbon processing.
- Manganese Compound Synthesis:
- Used to manufacture manganese sulfate, manganese dioxide, and other compounds for batteries, fertilizers, and water treatment.
- Hydrogen Scavenging:
- Mitigates hydrogen embrittlement in metal casting and refining processes.
5. Emerging & Niche Applications
- Battery Technology:
- Explored as a component in lithium-ion and alkaline battery cathodes for improved energy density.
- Environmental Remediation:
- Utilized in wastewater treatment systems to remove heavy metals via adsorption and precipitation.
Key Advantages
- High Purity: Typically >99.7% Mn, ensuring minimal impurities for critical metallurgical processes.
- Controlled Hydrogen Content: Reduces hydrogen-induced brittleness in alloys.
- Versatility: Compatible with electric arc furnaces (EAF), ladle refining, and powder metallurgy.
Industry-Specific Benefits
- Automotive: Lightweight, high-strength alloys improve fuel efficiency and durability.
- Construction**: Enhances structural steel performance in harsh environments.
- Energy: Supports corrosion-resistant components in offshore wind turbines and oil rigs.
Dehydrogenated Electrolytic Manganese is a cornerstone of advanced metallurgy, driving innovation in material science, sustainable manufacturing, and high-performance alloy development. Its role in enhancing product longevity and efficiency solidifies its importance across global industries.
Note: DEM’s chemical applications (~5% of total usage) include niche roles in catalysts, pigments, and specialty chemical synthesis.