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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If blended into nitrogenous fertilizers
Fertilizer mixtures containing cobalt sulfate fall under Chapter 31 for mineral/chemical fertilizers, not pure inorganic salts.
If in electroplating bath preparations
Prepared chemical mixtures for specific industrial uses like plating solutions are classified in heading 3824 as chemical preparations.
If as complex double salt with ammonium
Complex or double salts of metals fall under heading 2842 per Chapter 28 notes, separate from simple sulfates.
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
• Verify purity and hydrate form via Certificate of Analysis (CoA) to confirm HTS 2833.29.10.00 classification as cobalt sulfate
• Include Safety Data Sheet (SDS) and ensure EPA/TSCA registration for chemical import compliance
• Avoid misclassification as fertilizer blends (Chapter 31); ship as pure chemical to prevent reclassification
Related Products under HTS 2833.29.10.00
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.
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.
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.