Cobalt Ammonium Sulfate
Cobalt ammonium sulfate is a double salt of cobalt and ammonium sulfate (CoSO4·(NH4)2SO4·6H2O) used in analytical labs and plating. Although it is a complex salt, Chapter Note 5 directs double salts to heading 28.42, so it does not belong under this item.
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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Related Products under Tariff item 2833.29.00
Anhydrous Cobalt Sulfate
Anhydrous cobalt(II) sulfate (CoSO4) is a white crystalline powder used in catalyst production and analytical chemistry. As a separate chemically defined compound of cobalt, it is classifiable under this tariff item for other sulphates.
Cobalt(II) Sulfate Heptahydrate
Cobalt(II) sulfate heptahydrate (CoSO4·7H2O) is a pink crystalline salt used in electroplating baths and as a cobalt source in fertilizers. As a separate chemically defined cobalt sulphate, it is classifiable under this tariff item.
Cobalt Sulfate for Electroplating
High-purity cobalt sulfate crystals for decorative and engineering electroplating baths. As a separate chemically defined cobalt sulphate, it falls under this tariff item for other sulphates.
Cobalt Sulfate Monohydrate
Cobalt sulfate monohydrate (CoSO4·H2O) is a red powder applied in animal feed supplements and ceramic pigments. As a separate chemically defined cobalt sulphate, it falls under this tariff item.
Copperas Crystals (Ferrous Sulfate)
Copperas crystals, or green vitriol, are large crystals of ferrous sulfate heptahydrate used in gardening and pigment production. As a separate chemically defined iron sulphate, it falls under this tariff item for other sulphates.
Feed Grade Cobalt Sulfate
Cobalt sulfate granular form (24% Co minimum) for trace mineral supplementation in livestock feed. As a separate chemically defined cobalt sulphate, it is classifiable under this tariff item.