Other
Sulphides; polysulphides, whether or not chemically defined. > Other sulphates: > Of copper > Other
Duty Rate (from China)
Products classified under Tariff item 2833.25.00.90
Anhydrous Copper Sulfate Powder
Anhydrous copper sulfate (CuSO4) in white powder form, without water of hydration. It is a separate chemically defined compound of copper, falling under tariff item 2833.25.00 as 'other sulphates of copper'.
2833.25.00Copper(II) Sulfate for Aquaculture
Technical grade copper sulfate crystals used for aquaculture pond algae control. As a chemically defined copper sulfate, it is classified under tariff item 2833.25.00 regardless of its end use in water treatment.
2833.25.00Copper Sulfate Pentahydrate Crystals
Copper sulfate pentahydrate (CuSO4·5H2O) in blue crystalline form, used as a fungicide and in laboratory applications. This hydrated form is a separate chemically defined compound of copper, classified under tariff item 2833.25.00.
2833.25.00Copper Vitriol Blue Crystals
Copper vitriol, the traditional name for copper sulfate pentahydrate, presented as deep blue crystals for pigment and dye applications. It is chemically identical to copper sulfate pentahydrate and classified under tariff item 2833.25.00.
2833.25.00Electroplating Grade Copper Sulfate
Refined copper sulfate for electroplating baths, with high purity for uniform metal deposition. As a chemically defined copper sulfate, it falls under tariff item 2833.25.00, even though it is optimized for a specific industrial use.
2833.25.00Feed Grade Copper Sulfate Monohydrate
Feed grade copper sulfate monohydrate (CuSO4·H2O) with controlled particle size for livestock mineral supplements. This chemically defined copper sulfate is classified under tariff item 2833.25.00, with feed grade specifications affecting only purity, not classification.
2833.25.00Laboratory Grade Copper Sulfate
Laboratory grade copper sulfate pentahydrate (ACS reagent grade) for analytical and educational use. As a high-purity chemically defined compound, it is classified under tariff item 2833.25.00, with purity levels not affecting the tariff classification.
2833.25.00Technical Grade Copper Sulfate
Technical grade copper sulfate pentahydrate with 98% minimum purity, used for large-scale fungicide and nutrient applications. This chemically defined copper sulfate is classified under tariff item 2833.25.00, regardless of its industrial purity grade.
2833.25.00Ultrahigh Purity Copper Sulfate
Ultrahigh purity copper sulfate (99.999%) for semiconductor doping and advanced materials research. This chemically defined copper sulfate is classified under tariff item 2833.25.00, as electronic grade purity does not change the classification.