Molybdenum Carbide Catalyst
Molybdenum carbide (Mo2C) nanoparticles used as hydrotreating catalysts in refineries. Falls under 2849.90.50.00 as chemically defined carbide for chemical process applications. High stability under harsh reaction conditions.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If supported on alumina carrier
Catalyst preparations supported on substrates classified under heading 3815.
If from molybdenum roasting residues
Molybdenum ore residues containing carbides fall under Chapter 26.
If peroxomolybdates
Molybdenum peroxysalts classified under heading 2840.
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Import Tips & Compliance
• Include catalyst performance data sheets for end-use verification
• Declare BET surface area to distinguish from bulk carbides
• Comply with EPA TSCA notifications for new catalyst chemicals
Related Products under HTS 2849.90.50.00
Silicon Carbide Powder
High-purity silicon carbide (SiC) powder used in abrasives, refractories, and ceramics production. It falls under HTS 2849.90.50.00 as a chemically defined carbide, not silicon carbide in sintered form with metal (which would be cermets in Section XV). This subheading covers other carbides beyond specified exclusions like calcium carbide.
Boron Carbide Abrasive Grit
Boron carbide (B4C) grit used in high-performance abrasives and armor materials. Classified in 2849.90.50.00 as 'other' chemically defined carbides, excluding metal-sintered cermets. Ideal for nozzle linings and cutting tools due to extreme hardness.
Tungsten Carbide Powder
Fine tungsten carbide (WC) powder for manufacturing cutting tools and wear-resistant coatings. Falls under HTS 2849.90.50.00 as other carbides, provided not sintered with metal into cermet form. Chemically defined compound per Chapter 28 notes.
Chromium Carbide Powder
Chromium carbide (Cr3C2) powder applied in thermal spray coatings for corrosion resistance. Classified under 2849.90.50.00 for chemically defined carbides excluding those sintered with metals. Used in aerospace and petrochemical industries.
Vanadium Carbide Powder
Vanadium carbide (VC) powder used as grain refiner in steel alloys and tool steels. HTS 2849.90.50.00 applies to this chemically defined carbide not chemically combined as complex salts. Enhances hardness without brittleness.
Titanium Carbide Powder
Titanium carbide (TiC) powder for cermet production and wear-resistant parts. Classified in HTS 2849.90.50.00 when chemically pure, before sintering with metals. Offers high melting point for extreme environments.