2825.60.00.20 - Zirconium dioxide

This classification covers zirconium dioxide, a white, crystalline inorganic compound with the chemical formula ZrO₂. It is a stable oxide of zirconium and is widely used in various industrial applications due to its high melting point, hardness, and chemical inertness. Examples include its use in ceramics, refractory materials, dental prosthetics, and as a pigment.

This specific code, 2825.60.00.20, exclusively applies to zirconium dioxide. It is distinguished from its sibling category, 2825.60.00.10, which covers germanium dioxide. While both are metal oxides within the broader heading for other metal oxides, hydroxides, and peroxides, they are classified separately based on the specific metal element. The "Other" sibling category (2825.60.00.50) would encompass any other metal oxides, hydroxides, or peroxides not specifically enumerated elsewhere within this subheading.

As this is a leaf node within the HTS classification, there are no further subcategories for zirconium dioxide. Therefore, classification under 2825.60.00.20 is final for pure zirconium dioxide and its common forms, requiring no further subdivision.