2841.70 - Molybdates:

This category, HTS 2841.70, specifically classifies molybdates. Molybdates are salts or esters of molybdic acid, which is an acid formed by molybdenum and oxygen. These compounds are typically inorganic and find applications in various industrial processes, including as pigments, catalysts, and corrosion inhibitors. The classification hinges on the chemical composition and the presence of the molybdate anion.

When classifying goods within Heading 2841, it's crucial to differentiate molybdates from other salts of oxometallic or peroxometallic acids listed at the same level. While siblings such as dichromates (2841.30, 2841.50), manganates, and tungstates (2841.80) involve different metals and their corresponding oxo-acids, 2841.70 is exclusively for compounds derived from molybdic acid. Therefore, the defining characteristic for classification into this sub-heading is the presence of molybdenum in its highest oxidation states as part of an oxo-anion.

The subcategories within 2841.70, namely 2841.70.10.00 for "Of ammonium" and 2841.70.50.00 for "Other," provide further specificity based on the cation associated with the molybdate anion. Ammonium molybdates are grouped separately, while all other molybdates, such as those formed with sodium, potassium, or other metals, fall under the "Other" designation. This distinction allows for more granular tracking and tariff application based on the specific salt formed.