Bismuth Molybdate Selective Oxidation Catalyst
Bismuth molybdate (Bi2Mo3O12) is a mixed metal oxide catalyst used for the selective oxidation of propylene to acrolein. It is a supported catalyst preparation designed to accelerate specific chemical reactions, falling under the 'other' category of supported catalysts. Its inorganic composition and catalytic function align with tariff item 3815.90.00.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the catalyst is on a precious metal support
Precious metal supported catalysts are classified separately under heading 3815.
If the product is a mixture not specifically a catalyst
Mixed chemical preparations not elsewhere specified may fall under heading 3824.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Ensure the catalyst is classified as a supported catalyst preparation, not a separate chemical element, to qualify for this item
• Provide technical documentation to CBSA showing its catalytic function
• Verify if any environmental regulations apply to bismuth compounds
Related Products under Tariff item 3815.90.00
Ammonium Molybdate Catalyst
Ammonium heptamolybdate ((NH4)6Mo7O24) is used as a selective oxidation catalyst in acrylic acid production. This inorganic molybdenum-based catalytic preparation functions as a reaction accelerator. It is not a separate chemically defined element and qualifies for tariff item 3815.90.00.
Bismuth Nitrate Catalyst
Bismuth nitrate is an inorganic bismuth salt used as a catalyst in organic synthesis, including esterification and oxidation reactions. It functions as a reaction initiator or accelerator in chemical processes, qualifying as a catalytic preparation. This product is not a separate chemically defined element and is not excluded by chapter notes, so it fits under tariff item 3815.90.00.
Bismuth Subnitrate Catalytic Promoter
Bismuth subnitrate is a basic bismuth nitrate used as a promoter in automotive catalytic converters and NOx reduction systems. It enhances the thermal stability and activity of the catalyst, functioning as a reaction accelerator. This inorganic preparation is not a separate chemically defined compound and is suitable for tariff item 3815.90.00.
Bismuth Triflate Reaction Initiator
Bismuth(III) triflate is a water-tolerant Lewis acid catalyst used in aldol reactions and glycosylations. It acts as a reaction initiator in organic synthesis, and its inorganic bismuth content qualifies it as a catalytic preparation. This product is not a separate chemically defined element and falls under tariff item 3815.90.00.
Mercuric Sulfate Catalyst
Mercuric sulfate (HgSO4) is a preparation used as a catalyst in acetylene hydration to acetone production. This inorganic mercury compound acts as a reaction initiator and is not a separate chemically defined element. It falls under tariff item 3815.90.00, subject to environmental regulations on mercury.
Tungsten Carbide Catalyst Powder
Tungsten carbide catalyst powder is a heterogeneous catalyst used in Fischer-Tropsch synthesis and hydrocracking. It consists of inorganic tungsten compounds designed to accelerate chemical reactions, qualifying as a supported catalyst preparation. This product is not a separate chemically defined element and fits under tariff item 3815.90.00.