2825.40.00.00 - Nickel oxides and hydroxides

This category, HTS Code 2825.40.00.00, specifically covers nickel oxides and hydroxides. These compounds are inorganic chemical substances derived from nickel. Examples include nickel(II) oxide (NiO), nickel(III) oxide (Ni₂O₃), and nickel(II) hydroxide (Ni(OH)₂). These materials are often utilized in the manufacturing of batteries, catalysts, pigments, and specialized ceramics.

It is important to distinguish this category from its siblings within Heading 28.25. For instance, while 2825.10.00.00 covers hydrazine and hydroxylamine, and 2825.20.00.00 pertains to lithium compounds, this specific subheading focuses solely on the oxides and hydroxides of nickel. Other related subheadings cover oxides and hydroxides of different metals, such as copper (2825.50) or vanadium (2825.30), highlighting the precise classification based on the specific metal element present.

As this is a leaf node within the HTS structure, there are no further subcategories. Classification within 2825.40.00.00 is determined by the chemical composition identifying the material as a nickel oxide or hydroxide. Therefore, any product meeting this chemical definition, regardless of its physical form (powder, crystalline, etc.) or specific purity, will fall under this classification, provided it is not specifically classifiable elsewhere under more specific HTS provisions.