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.
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 carbonate of an inorganic base other than silver
Carbonates of other inorganic bases are classified in heading 28.36.
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
• Verify the silver carbonate is chemically pure and not mixed with other substances
• Keep documentation showing it is not a carbonate of an inorganic base, as that would fall under a different heading
• Be aware of potential restrictions if used in colorants, which may require health and safety declarations
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 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.
Silver Oxide Powder
Silver oxide (Ag2O) is a fine black powder used in battery production and chemical synthesis. It is a chemically defined inorganic silver compound, classified under heading 28.43, tariff item 2843.29.00 as 'other' silver compounds. It is not an oxide of a metal in Section XV, as silver is a precious metal, and it is not specifically named in other subheadings.