2835.29.30.00 - Of trisodium

This HTS category, 2835.29.30.00, specifically covers phosphates of trisodium. These are chemical compounds that are salts or esters of phosphoric acid, where the sodium cation (Na+) is the primary metal component, and the compound exists in its trisodium form. Such phosphates find widespread application in various industries, including food processing as emulsifiers and texturizers, detergents as builders, and water treatment as sequestrants. The key defining characteristic for classification under this heading is the presence of trisodium as the metal cation in the phosphate structure.

This classification is distinct from its sibling categories at the 2835.29 level. For instance, 2835.29.10.00 pertains to phosphates of aluminum, focusing on a different metallic element. Similarly, 2835.29.20.00 is reserved for phosphates of triammonium, again differentiating by the cation. The "Other" category (2835.29.51.00) serves as a residual classification for phosphates of other metals or ammonium compounds not specifically listed elsewhere in this subheading. Therefore, the exclusivity of trisodium is the critical factor for goods falling under 2835.29.30.00.

As 2835.29.30.00 is a leaf node within the HTS structure, there are no further subcategories for this specific classification. Classification within this code is definitive once the product is identified as a trisodium phosphate. Practical classification relies on verifying the chemical composition and ensuring the compound is indeed a trisodium salt or ester of phosphoric acid, excluding other metallic phosphates or ammonium phosphates.