Ammonium Metavanadate NH4VO3
Ammonium metavanadate (NH4VO3) is a white to pale yellow crystalline powder used as an intermediate in vanadium processing and in ink production. Although it contains an ammonium group, it is classified as a vanadium oxide/hydroxide derivative under tariff item 2825.30.00 because the vanadium-oxygen core determines its essential character.
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 |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as a double or complex salt
Chapter 28 Note 5 directs double or complex salts to heading 28.42, but if the ammonium metavanadate is presented as a complex vanadate salt, heading 28.41 (salts of oxometallic acids) may apply.
If the vanadium content is not the essential character
If the product is a mixture with other inorganic bases, it may fall under other metal oxides/hydroxides in heading 28.25.
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 product is chemically pure and meets the definition of a separate chemically defined compound under Chapter 28 Note 1
• Provide a certificate of analysis to the CBSA to support classification
• Verify whether the end use (e.g
• catalyst production) triggers any other regulatory requirements
Related Products under Tariff item 2825.30.00
99.9% Pure Vanadium Pentoxide V2O5
Electronic grade vanadium pentoxide with 99.9% purity is an anhydrous powder for thin-film deposition. As a chemically defined metal oxide, it falls under tariff item 2825.30.00, provided it is not doped for electronics.
Ammonium Metavanadate NH4VO3 Crystals
Ammonium metavanadate crystals are white to pale yellow solids used to produce vanadium pentoxide and in leather tanning. As a vanadium hydroxide derivative with ammonium, it is classified under tariff item 2825.30.00, consistent with the chemically defined compound criteria.
Anhydrous Vanadium Pentoxide Granules
Granular vanadium pentoxide (V2O5) in anhydrous, non-hygroscopic form is used in glass coloring and vanadium battery production. It is a chemically defined vanadium oxide under tariff item 2825.30.00.
Divanadium Pentoxide Technical Grade
Technical grade divanadium pentoxide (5V2O5·9MoO3) is used in ferrovanadium alloy production. This mixed oxide classifies as 'other' vanadium oxide under tariff item 2825.30.00 when vanadium is the predominant metal and the product is chemically defined.
Divanadium Tetraoxide VO2
Divanadium tetraoxide (VO2) is a blue-black powder with a reversible metal-insulator transition, making it valuable for smart windows and sensor applications. It is a chemically defined vanadium oxide, which falls under tariff item 2825.30.00 for vanadium oxides and hydroxides.
High-Purity Vanadium Pentoxide 99.9%
High-purity vanadium pentoxide (V2O5) at 99.9% purity is used in semiconductor doping and single-crystal growth. As a chemically defined vanadium oxide, it is classified under tariff item 2825.30.00 for vanadium oxides and hydroxides.