2904.33.00.00 - Lithium perfluorooctane sulfonate

This HTS category, 2904.33.00.00, specifically classifies Lithium perfluorooctane sulfonate. This compound is a salt derived from perfluorooctane sulfonic acid, characterized by the presence of a lithium cation. It falls under the broader heading for sulfonated, nitrated, or nitrosated hydrocarbon derivatives, particularly within the subgroup dedicated to perfluorooctane sulfonic acid and its related compounds.

Distinguishing this classification from its siblings, 2904.31.00.00 covers the parent acid itself, while 2904.32.00.00 covers the ammonium salt. Similarly, 2904.34.00.00 is for the potassium salt, and 2904.35.00.00 encompasses all other salts of perfluorooctane sulfonic acid not otherwise specified. 2904.36.00.00 addresses the perfluorooctane sulfonyl fluoride. Therefore, 2904.33.00.00 is precisely for the lithium salt variant of this chemical family.

As a leaf node in the HTS structure, 2904.33.00.00 does not have further subcategories. This signifies that all shipments of Lithium perfluorooctane sulfonate, regardless of specific purity, form (e.g., powder, solution), or minor industrial variations, will be classified under this single HTS code, provided they meet the definitional criteria of the parent and this specific subheading. Classification relies on the definitive identification of the chemical compound as Lithium perfluorooctane sulfonate.