Silver Sulfate Crystals
Silver sulfate (Ag2SO4) crystals are used in analytical chemistry and electronics. This soluble inorganic silver salt is classified under heading 28.43, tariff item 2843.29.00 as 'other' silver compounds. It is not a sulfate of a base metal, as silver is a precious metal, and it is not specifically named in other subheadings.
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 |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the product is a sulfate of a base metal
Sulfates of base metals are classified in heading 28.33.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Ensure the silver sulfate is in crystal form and not a solution, which may require different documentation
• Check with the CBSA for any restrictions on chemicals used in electronics
• Provide a certificate of analysis to confirm the chemical identity
Related Products under Tariff item 2843.29.00
Silver Bromide Crystals
Silver bromide (AgBr) crystals are a chemically defined inorganic silver compound, used primarily in photographic film emulsions and as a reagent in analytical chemistry. Under the Customs Tariff, this compound falls within heading 28.43 as a silver salt, specifically under tariff item 2843.29.00 for other silver compounds, as it is not a nitrate, oxide, or other specifically named salt.
Silver Carbonate Precipitate
Silver carbonate (Ag2CO3) is a chemically defined inorganic silver salt, appearing as a yellow precipitate used in organic synthesis and as a colorant. It is classified under heading 28.43 as a silver compound, and specifically under tariff item 2843.29.00 as 'other' silver compounds, since it is not a nitrate, oxide, or halide. Chapter Note 2 excludes it from heading 28.36 (carbonates) because it is a silver compound, not a carbonate of an inorganic base.
Silver Chloride Powder
Silver chloride (AgCl) is a white, insoluble powder used in photography, optics, and antimicrobial applications. As a chemically defined inorganic silver compound, it is classified under heading 28.43, specifically tariff item 2843.29.00 for 'other' silver compounds, as it is not a nitrate, oxide, or complex salt. It is excluded from other headings by Chapter Note 3, which removes certain products from Chapter 28.
Silver Cyanide Powder
Silver cyanide (AgCN) is a highly toxic white powder used in silver plating and chemical manufacturing. It is a chemically defined inorganic silver compound, classified under heading 28.43, tariff item 2843.29.00 as 'other' silver compounds. Chapter Note 2 excludes it from heading 28.37 (cyanides) because it is a silver compound, not a cyanide of an inorganic base.
Silver Iodide Crystals
Silver iodide (AgI) crystals are used in cloud seeding, photography, and antiseptics. This chemically defined inorganic silver compound is classified under heading 28.43, tariff item 2843.29.00 as 'other' silver compounds, as it is not a nitrate, oxide, or complex salt. It is a halide of silver, but not specifically named in other subheadings.
Silver Nitrate Crystals
Silver nitrate (AgNO3) is a white crystalline compound used in photography, medicine, and as a chemical reagent for silvering mirrors. It is a chemically defined inorganic silver compound, classified under heading 28.43, tariff item 2843.29.00 as 'other' silver compounds. Although it is a nitrate, it is not classified under heading 28.34 because it is a silver compound, which takes precedence under Section Note 1.