Calcium Vanadate
Calcium vanadate (Ca3(VO4)2) is an inorganic compound used in ceramics, catalysts, and as a phosphor precursor. It is a salt of vanadic acid and meets the Chapter 28 definition of a chemically defined compound, placing it under tariff item 2841.90.00.
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 product is a supported catalyst preparation
Prepared catalysts are classified in Chapter 38
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
• Document the chemical formula and purity level to support classification
• If the product is used as a catalyst, ensure it is not a prepared catalyst of heading 3815
• Keep records of the manufacturing process for customs verification
Related Products under Tariff item 2841.90.00
ACS Reagent Potassium Stannate
Potassium stannate (K2SnO3) is a white crystalline powder used in electroplating solutions for corrosion-resistant tin coatings. As a salt of stannic acid, it is classified under tariff item 2841.90.00 for other salts of oxometallic acids.
Ammonium Metavanadate
Ammonium metavanadate ((NH4)VO3) is a white crystalline powder used as a catalyst in the production of sulfuric acid and in the manufacture of inks, dyes, and ceramics. As a salt of vanadic acid, it falls under tariff item 2841.90.00 for other salts of oxometallic or peroxometallic acids.
Ammonium Perrhenate Catalyst Precursor Flakes
Ammonium perrhenate in flake form (NH4ReO4) is a key precursor for producing rhenium catalysts and superalloys. As a salt of perrhenic acid, it is classified under tariff item 2841.90.00 for other salts of oxometallic or peroxometallic acids.
Ammonium Perrhenate (NH4ReO4) Powder
Ammonium perrhenate powder (NH4ReO4) is the ammonium salt of perrhenic acid, appearing as a white crystalline powder used in catalyst production and electronics. It is a chemically defined compound under Chapter 28, classified under tariff item 2841.90.00.
Bismuth Vanadate
Bismuth vanadate (BiVO4) is a bright yellow pigment used in high-performance coatings, plastics, and artists' colors due to its excellent heat and light stability. As a vanadate salt, it is classified under tariff item 2841.90.00 for other salts of oxometallic acids.
High-Purity Ammonium Perrhenate for Superalloy Production
High-purity ammonium perrhenate (>99.99% Re) is used as a raw material for producing rhenium powder for nickel-based superalloys in turbine blades. As a salt of perrhenic acid, it falls under tariff item 2841.90.00 for other oxometallic acid salts.