Cobalt Ammonium Sulfate
Double salt of cobalt and ammonium sulfate (CoSO4·(NH4)2SO4·6H2O) used in analytical labs and plating. Falls under HTS 2833.29.10.00 as a sulfate of cobalt, with complex salts directed by Chapter notes.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If classified as complex salt per lab analysis
Chapter 28 note specifies double/complex salts go to 2842, potentially shifting from simple cobalt sulfate.
If predominantly ammonium sulfate with cobalt
If ammonium content dominates, it may classify under nickel/ammonium sulfates subheading by analogy.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Confirm if simple mixture or true double salt via X-ray diffraction for accurate heading 2833 classification
• Include molecular formula on commercial invoice to avoid disputes over complex salt status
• Segregate from organic-stabilized versions that may fall under excluded preparations
Related Products under HTS 2833.29.10.00
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. It falls under HTS 2833.29.10.00 as a sulfate of cobalt, classified among other sulfates of metals per Chapter 28 notes.
Cobalt Sulfate Monohydrate
Cobalt sulfate monohydrate (CoSO4·H2O) is a red powder applied in animal feed supplements and ceramic pigments. Classified under HTS 2833.29.10.00 as a chemically defined sulfate of cobalt.
Anhydrous Cobalt Sulfate
Anhydrous cobalt(II) sulfate (CoSO4) is a white crystalline powder used in catalyst production and analytical chemistry. It qualifies for HTS 2833.29.10.00 as the water-free sulfate of cobalt.
Technical Grade Cobalt Sulfate
Technical grade cobalt sulfate (approx. 20-24% Co) for industrial pigment and battery applications. Classified in HTS 2833.29.10.00 as other sulfates of cobalt, provided chemically defined.
Cobalt Sulfate for Electroplating
High-purity cobalt sulfate crystals for decorative and engineering electroplating baths. HTS 2833.29.10.00 applies as pure cobalt sulfate salt used in metal finishing.
Feed Grade Cobalt Sulfate
Cobalt sulfate granular form (24% Co minimum) for trace mineral supplementation in livestock feed. Remains under HTS 2833.29.10.00 as chemically defined cobalt sulfate.