Molybdenum Carbide Powder
The molybdenum carbide molecular formula is Mo2C, the Molybdenum carbide molecular weight is 203.88, and the carbon content is 5.89%. It is a dark gray metal powder with a closely packed hexagonal crystal lattice. Molybdenum carbide density is 9.18g/cm, and Molybdenum carbide melting point is 2690℃. As a new functional material, it has a high melting point and hardness, good thermal and mechanical stability, and good corrosion resistance. It has been widely used in high-temperature resistance, wear resistance, and chemical corrosion resistance.
Mo carbide has a hexagonal crystal structure, a = 0.30029nm, c = 0.472895nm. Micro Vickers hardness (load 50g) 1950kg/mm2 (compared to 2080kg of WC). / mm2 is softer) The melting point is 2687℃. Feel free to inquire about the latest price if you want to buy Molybdenum Carbide Mo2C Powder in bulk.
Features of Molybdenum Carbide Mo2C Powder
Molybdenum carbide CAS 12069-89-5 is a gray hexagonal crystal. It has a high melting point and hardness, good thermal and mechanical stability, and corrosion resistance. The melting point is 2692°C. It is insoluble in water and alkaline liquid and slightly soluble in nitric, sulfuric, and hydrofluoric acid.
Molecular formula: Mo2C
CAS Code: 12069-89-5
Appearance and properties： gray black metal powder
Melting point: 2690℃
Density: 5.89g/cm3
Production Method of Molybdenum Carbide Mo2C Powder
1. Generally, molybdenum carbide powder is made first (using molybdenum and carbon direct chemical method, metal oxide and carbon reduction-chemical method, vapor deposition method, and self-propagating high-temperature synthesis method), and then in a vacuum or reducing atmosphere in the carbon tube Furnace, molybdenum wire furnace, high-frequency vacuum furnace for sintering (reaction sintering, hot pressing sintering and hot isostatic pressing sintering are mostly used).
2. After the molybdenum powder and carbon black are fully mixed, they are ground by a ball mill and pressed into shape. In a hydrogen gas stream, the product is calcined at 1350-1500°C, and then the calcined product is cooled, crushed, and ground. Or use molybdenum trioxide or molybdenum dioxide instead of molybdenum powder reduction method.
3. Auxiliary metal bath method.
Using cobalt as the auxiliary metal, select Mo: Co to form a metal bath at a ratio of 1:(1～1.5), heat it in a pure graphite crucible with a Taman furnace in a hydrogen stream to 1800°C, and cool it (heating to 1800°C within one h) ℃, keep at 1800℃ for 2～3h, cooling to room temperature takes two h), crush the solidified product in the crucible, treat it with warm hydrochloric acid, and dissolve and remove the cobalt, and then obtain powdered Mo2C with a particle size of 150～350μm, the purity is: Containing 5.82%～5.85% (mass) of bound carbon, 0.26%～0.32% (mass) of free carbon, 6.08%～6.17% (mass) of total carbon.
4. Manufactured by the carbonization of metallic molybdenum.
Molybdenum trioxide MoO3 is hydrogenated and reduced to obtain molybdenum powder. Then, the mixture of molybdenum powder and carbon black [Mo934% (mass) C6.6% (mass)] is dry-mixed with a ball mill for about 10 hours and molded under pressure at a pressure of about 1t/cm2. Put the pressurized material block into a graphite pan or crucible, and heat it to 1400～1500 in a hydrogen stream (using pure hydrogen with a dew point of about -35℃) with a Taman furnace or an induction heating furnace (see picture) ℃, keep at this temperature for about one h. Carbonize molybdenum to generate Mo2C.
5. Using synthetic methods.
First, the molybdenum powder is thoroughly mixed with carbon black [containing V6.6% (mass fraction)] according to Mo93.4% (mass fraction), then ground by a ball mill for 1 hour, pressurized to form, and put into an induction furnace. In hydrogen gas flow, calcining at 1350-1500°C for one hour, then cooling, pulverizing, and grinding the calcined product to obtain the product. Molybdenum trioxide or molybdenum dioxide can also be used instead of molybdenum powder for reduction to obtain molybdenum carbide.
Technical Parameter of Molybdenum Carbide Mo2C Powder
|
Chemical Composition |
Mo+C | C | Free C | S | O | Fe |
| Test Result (%) | 99 | 11.3 | 0.2 | 0.02 | 0.4 |
0.12 |
Applications of Molybdenum Carbide Mo2C Powder
Molybdenum carbide is a new functional material with a high melting point, hardness, and excellent anti-corrosion properties. It has been widely used in various high-temperature, abrasion, and chemical corrosion fields. It has a similar noble metal electronic structure and catalytic performance.
1. Due to its electronic structure and catalytic performance similar to noble metals, molybdenum carbide can be widely used as a catalyst for reactions involving hydrogens, such as the isomerization of alkanes, the hydrogenation of unsaturated hydrocarbons, hydrodesulfurization, and denitrification;
2. Molybdenum carbide is an important component of molybdenum-molybdenum carbide hard coatings and other cermet coatings and can also be used alone as a wear-resistant and wear-resistant coating;
2. Molybdenum carbide is widely used in hydrogen-related reactions such as alkanes;
3. Molybdenum carbide can be used to produce chromium-free special alloys and engineering ceramics;
4. Molybdenum carbide is used as super-hard tool material, wear-resistant material, heating element material, and high-temperature structural material;
5. Molybdenum carbide is used to produce wear-resistant films and semiconductor films;
6. Molybdenum carbide can make chromium-free special alloys and engineering ceramics.
Storage Condition of Molybdenum Carbide Mo2C Powder
Damp reunion will affect Mo2C powder dispersion performance and using effects, therefore, Molybdenum Carbide Mo2C Powder should be sealed in vacuum packing and stored in cool and dry room, the Molybdenum Carbide Mo2C Powder can not be exposure to air. In addition, the Mo2C powder should be avoided under stress.
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Payment Methods of Molybdenum Carbide Mo2C Powder
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Shipment of Molybdenum Carbide Mo2C Powder
It could be shipped by sea, by air, or by reveal ASAP as soon as repayment receipt.
Package of Molybdenum Carbide Mo2C Powder
Vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
FAQ
Q1: What are the physical properties of molybdenum carbide?
Answer: Molybdenum carbide usually appears as a black powder or solid with a high melting point and hardness. Its physical properties such as density and thermal expansion coefficient vary due to different preparation methods and purity.
Q2: What are the chemical properties of molybdenum carbide?
Answer: Molybdenum carbide is relatively stable at room temperature, but at high temperatures or under certain conditions, it may react with oxygen, water vapor, etc., resulting in oxidation or hydrolysis. In addition, molybdenum carbide is prone to dissolution and destruction under acidic conditions.
Q3: What is the light absorption rate of molybdenum carbide?
Answer: The light absorption rate of molybdenum carbide is affected by many factors, such as preparation method, purity, crystal structure, etc. Different molybdenum carbide samples may have different light absorption properties, so a specific value cannot be given.
Q4: What safety issues should we pay attention to when using molybdenum carbide?
Answer: When handling molybdenum carbide, you should wear personal protective equipment such as protective glasses, gloves and protective clothing to avoid inhaling its dust. At the same time, ensure that the workplace is well ventilated and away from fire sources and flammable materials.
Q5: What are the advantages of using molybdenum carbide in the field of catalysts?
Answer: Molybdenum carbide has high activity, high selectivity and good stability as a catalyst. In some chemical reactions, molybdenum carbide can replace precious metal catalysts, reducing production costs and improving reaction efficiency.
