2808.00.00.10 - Nitric acid

This HTS category, 2808.00.00.10, specifically covers nitric acid. Nitric acid is a highly corrosive mineral acid with the chemical formula HNO₃. It is characterized by its oxidizing properties and is a key component in many industrial processes, including the production of fertilizers, explosives, and other chemicals. For classification purposes, this heading pertains to pure nitric acid or its aqueous solutions, irrespective of concentration.

This classification is distinct from its sibling category, 2808.00.00.20, which is reserved for sulfonitric acids. Sulfonitric acids, also known as mixed acids, are specifically defined as a mixture of nitric acid and sulfuric acid. Therefore, while nitric acid is a component, the distinguishing feature of the sibling category is the presence of sulfuric acid, creating a distinct chemical entity with different applications and properties.

As this node is a leaf node within the HTS structure, there are no further subcategories under 2808.00.00.10. Classification decisions within this category will therefore rely on accurately identifying the substance as nitric acid, free from the significant presence of sulfuric acid which would place it in the sulfonitric acid heading. The common industrial forms and concentrations of nitric acid, such as concentrated nitric acid (approximately 68% HNO₃ by weight) or fuming nitric acid, all fall under this specific classification.