2835.29.10.00 - Of aluminum

This HTS category, 2835.29.10.00, specifically covers phosphates where the primary cation is aluminum. Phosphates are salts or esters of phosphoric acid, and in this instance, the chemical compound is formed by the reaction of phosphoric acid with aluminum. These compounds are often utilized in various industrial applications, including water treatment, flame retardants, and as ingredients in certain specialty chemicals. The classification is determined by the presence of aluminum as the principal metallic component in the phosphate salt.

This subcategory distinguishes itself from its siblings by its unique chemical composition. For example, 2835.29.20.00 pertains to phosphates of triammonium, and 2835.29.30.00 relates to phosphates of trisodium, indicating different metallic or ammonium cations. The "Other" category, 2835.29.51.00, encompasses all remaining phosphates not specifically enumerated elsewhere within the "Other" classification at this level, thus making 2835.29.10.00 a distinct and defined grouping based on its aluminum content.

As this is a leaf node within the HTS structure, there are no further subcategories under 2835.29.10.00. Classification at this level is definitive and does not branch into more specific subdivisions. Therefore, the primary focus for import and export professionals is to accurately identify and document that the phosphate being classified is indeed an aluminum phosphate, based on its chemical identity and composition, to ensure correct duty assessment and compliance.