2841.90.45.00 - Chromates of zinc or of lead

This HTS category, 2841.90.45.00, specifically classifies chromates of zinc and chromates of lead. These are inorganic chemical compounds where chromium exists in its hexavalent state, combined with either zinc or lead cations. Examples include zinc chromate (ZnCrO4) and lead chromate (PbCrO4), which are often utilized for their pigmenting properties and as corrosion inhibitors.

Unlike its sibling categories which cover vanadates, ammonium perrhenate, potassium stannate, and aluminates, this classification is narrowly focused on zinc and lead chromates. The distinction lies in the specific metal cation forming the chromate salt. While all fall under the broader heading of "Salts of oxometallic or peroxometallic acids," the precise chemical composition dictates their unique HTS classification.

As a leaf node, 2841.90.45.00 does not have further subdivisions. Therefore, the classification relies on identifying the substance as a chromate containing either zinc or lead. Importers and exporters should ensure the chemical composition of the goods precisely matches the description to avoid misclassification. Any chromates of other metals would be classified under the residual category 2841.90.50.00.