2852.10.10.00 - Mercuric oxide, mercuric cyanide, mercuric oxycyanide and mercuric potassium cyanide 🖩

This HTS classification, 2852.10.10.00, specifically covers chemically defined inorganic or organic compounds of mercury, excluding amalgams. The products falling under this heading are precise chemical entities with a defined molecular structure. Examples include mercuric oxide (HgO), mercuric cyanide (Hg(CN)2), mercuric oxycyanide (Hg(CN)2·HgO), and mercuric potassium cyanide (Hg(CN)2·2KCN). These substances are distinguished by their specific chemical composition, making them distinct from other mercury compounds not meeting the criteria for chemically defined substances.

This category is differentiated from its sibling, 2852.10.90.00, which covers "Other" inorganic or organic compounds of mercury. While 2852.10.10.00 focuses on precisely defined chemical compounds, 2852.10.90.00 would encompass mercury compounds that are not chemically defined, meaning their exact molecular composition may vary or is not established with the same precision. This distinction is critical for accurate tariff classification, as it relies on the certainty of the chemical identity of the imported or exported mercury compound.

As this is a leaf node in the HTS, there are no further subcategories. Therefore, classification within 2852.10.10.00 relies on confirming that the mercury compound in question is indeed chemically defined and falls within the scope of the listed examples or similar precisely structured chemical entities. The key determining factor is the confirmed chemical identity and structure of the mercury compound.