Nickel Sulfate Hexahydrate
Nickel sulfate hexahydrate (NiSO4·6H2O) is a bright green crystalline compound used primarily in electroplating and as a nickel source in chemical synthesis. It falls under HTS 2833.24.00.00 as a sulfate of nickel, classified among other metal sulfates in Chapter 28 for chemically defined inorganic compounds.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If blended with organic stabilizers or additives exceeding 10%
Impure mixtures or preparations not chemically defined fall under Chapter 38 as chemical products.
If sold as a complex salt with other metals like cobalt
Double or complex salts of metals are classified in 2842 per Chapter 28 notes, not simple sulfates.
If formulated as a fertilizer mixture with nitrogen/phosphorus
Fertilizer preparations containing nickel sulfates are excluded from Chapter 28 by note 3 to Chapter 31.
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 to confirm classification under 2833.24.00.00 and avoid reclassification as mixtures
• Include SDS and end-use declarations, especially for battery or catalyst applications, to comply with REACH-like regulations and TSCA
• Watch for common pitfalls like mislabeling as ferrous sulfate, which shifts to 2833.21; ensure nickel content >50%
Related Products under HTS 2833.24.00.00
Anhydrous Nickel Sulfate
Anhydrous nickel sulfate (NiSO4) is a yellow-brown powder used in high-temperature applications like glass coloring and catalyst production. Classified under HTS 2833.24.00.00 as a pure sulfate of nickel, distinct from its hydrated forms.
Nickel Sulfate for Lithium-Ion Battery Cathodes
Battery-grade nickel sulfate (NiSO4·6H2O >99.5% pure) serves as precursor for NMC cathode materials in EV batteries. Under HTS 2833.24.00.00 as chemically defined nickel sulfate.
Nickel Sulfate Crystals EP Grade
European Pharmacopoeia (EP) grade nickel sulfate crystals for calibration standards and research. HTS 2833.24.00.00 covers this pure inorganic nickel salt.
Nickel Ammonium Sulfate
Nickel ammonium sulfate ((NH4)2Ni(SO4)2·6H2O) is a double salt used in analytical chemistry and electroplating baths. It qualifies under HTS 2833.24.00.00 as a sulfate of nickel, per Chapter 28 rules allowing certain complex salts.
Nickel(II) Sulfate USP Grade
USP-grade nickel(II) sulfate meets pharmaceutical standards for use in trace element supplements and lab standards. Falls under HTS 2833.24.00.00 as a chemically defined nickel sulfate, pure for medicinal applications.
Electrowinning Grade Nickel Sulfate
High-purity nickel sulfate optimized for electrowinning processes in nickel metal recovery from ores. Classified in HTS 2833.24.00.00 as a sulfate of nickel for industrial metallurgy.