2835.25.00.00 - Calcium hydrogenorthophosphate ("Dicalcium phosphate")

This HTS category, 2835.25.00.00, specifically covers "Dicalcium phosphate" (calcium hydrogenorthophosphate). This inorganic salt of phosphoric acid is characterized by its composition of calcium and hydrogenorthophosphate ions. It is commonly utilized in various industrial applications, including as a food additive (e.g., in supplements and toothpaste as an abrasive or buffering agent), an animal feed supplement, and in pharmaceutical preparations.

Distinguishing this subcategory from its siblings is crucial for accurate classification. While 2835.22.00.00 and 2835.24.00.00 cover phosphates of sodium and potassium respectively, and 2835.26.00.00 encompasses "Other phosphates of calcium," 2835.25.00.00 is reserved solely for the specific compound of dicalcium phosphate. The designation "Other phosphates of calcium" (2835.26.00.00) would apply to calcium phosphates with a different stoichiometric ratio of calcium to phosphate or other hydrogen/orthophosphate forms not falling under the explicit description of dicalcium phosphate.

As this is a leaf node in the HTS structure, there are no further subcategories to introduce. Therefore, the classification hinges on the precise identification of the imported or exported material as dicalcium phosphate. Importers and exporters should ensure their documentation clearly specifies this chemical name or its common designation, "Dicalcium phosphate," to avoid misclassification with other calcium phosphate compounds.