Ammonium Heptamolybdate
Ammonium heptamolybdate tetrahydrate is a white crystalline powder used as a precursor in molybdenum metal production and as a catalyst in chemical reactions. It is a chemically defined ammonium salt of molybdic acid, classifiable under tariff item 2841.70.00 as a molybdate.
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 |
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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 clearly labelled as ammonium heptamolybdate with its chemical formula on the commercial invoice
• Verify the purity and moisture content, as these may affect classification
• Consult the CBSA's D10 tariff database for the current MFN duty rate, which is free for most countries
Related Products under Tariff item 2841.70.00
Ammonium Molybdate Crystals
Crystalline ammonium molybdate used in electroplating solutions is a chemically defined ammonium salt of molybdic acid. It is classifiable under tariff item 2841.70.00 as a molybdate, regardless of its intended use in electroplating.
Ammonium Molybdate for Pigment Production
Specialty ammonium molybdate used in manufacturing molybdenum pigments for paints is a chemically defined ammonium salt of molybdic acid. It falls under tariff item 2841.70.00 as a molybdate, even when produced for a specific pigment application.
Ammonium Molybdate Solution Precursor Crystals
Ammonium molybdate crystals that dissolve into solutions for corrosion inhibitors are a chemically defined ammonium salt of molybdic acid. They are classifiable under tariff item 2841.70.00 as molybdates in solid form.
Ammonium Molybdate Tetrahydrate
Ammonium molybdate tetrahydrate is a chemically defined ammonium salt of molybdic acid used as an analytical reagent and agricultural nutrient. It is classifiable under tariff item 2841.70.00 as a molybdate.
Ammonium Paramolybdate
Ammonium paramolybdate is a key industrial chemical for pigment production and alloy manufacturing. As a chemically defined ammonium salt of molybdic acid, it is classifiable under tariff item 2841.70.00 as a molybdate.
Ammonium Tetramolybdate
Ammonium tetramolybdate is a chemically defined ammonium salt of molybdic acid used in flame retardants and corrosion inhibitors. It is classifiable under tariff item 2841.70.00 as a molybdate.