2836.40.10.00 - Dipotassium carbonate

This HTS category encompasses dipotassium carbonate, a specific inorganic chemical compound. It is characterized by its chemical formula K₂CO₃ and is typically found in a white crystalline powder or granular form. Dipotassium carbonate finds various industrial applications, including as a drying agent, a buffering agent in chemical processes, and as an ingredient in the manufacturing of glass and ceramics. Its classification falls under Chapter 28, which deals with inorganic chemicals, specifically within the broader heading for carbonates.

It is important to distinguish dipotassium carbonate from its sibling category, potassium hydrogencarbonate (potassium bicarbonate). While both are potassium carbonate derivatives, they differ in their chemical composition and properties. Potassium hydrogencarbonate (KHCO₃) contains an additional hydrogen atom per potassium carbonate molecule, resulting in different solubility characteristics and reactivity. Classification hinges on the precise chemical makeup, with dipotassium carbonate being exclusively K₂CO₃.

As this is a leaf node within the HTS classification structure, there are no further subdivisions under 2836.40.10.00. Therefore, the focus for classification at this level remains on accurately identifying the product as dipotassium carbonate and differentiating it from other related potassium compounds. The official description and chemical composition are the primary determining factors for correct entry.