2843.21.00.00 - Silver nitrate

This HTS category, 2843.21.00.00, specifically covers silver nitrate. Silver nitrate is a chemical compound with the formula AgNO₃. It is a highly versatile inorganic salt commonly recognized for its crystalline structure and its applications in photography, medicine as an antiseptic and cauterizing agent, and as a reagent in chemical analysis and synthesis.

At this level of the Harmonized Tariff Schedule, 2843.21.00.00 is distinct from its sibling category, 2843.29.01.00 ("Other"). While 2843.29.01.00 would encompass all other silver compounds that do not fit the specific definition of silver nitrate, this particular classification is reserved solely for AgNO₃. This means that any silver compound that is not silver nitrate would be classified under the "Other" sibling category.

As this is a leaf node within the HTS, there are no further subcategories. Therefore, the classification of goods under 2843.21.00.00 is definitive for silver nitrate. Importers and exporters should ensure that the product being declared is indeed silver nitrate, a compound of silver, and not another silver-containing chemical or a silver alloy.