2835.39.10.00 - Of potassium

This HTS category, 2835.39.10.00, specifically covers polyphosphates of potassium. Polyphosphates are inorganic compounds characterized by a chain of phosphate groups linked by oxygen atoms. When these polyphosphates are chemically combined with potassium, they fall under this particular classification. Examples include various potassium salts of polyphosphoric acids, often utilized in industrial applications such as detergents, food additives (for preservation and emulsification), and metal treatment.

Within the broader classification of "Polyphosphates: Other," this subcategory distinguishes itself from its sibling, 2835.39.50.00 ("Other"), by its specific elemental composition. While 2835.39.50.00 encompasses polyphosphates of elements *other* than potassium, this code is exclusively for those containing potassium. The defining characteristic for classification here is the presence of potassium as the cation in the polyphosphate structure.

As a leaf node, this category does not have further subcategories. Therefore, the classification relies solely on the accurate identification of the product as a polyphosphate containing potassium. Importers and exporters should ensure their documentation clearly indicates the chemical composition, specifically confirming the presence of potassium within the polyphosphate compound to ensure correct clearance under this HTS code.