Technical Grade Niobium Pentoxide Nb2O5
Technical-grade niobium pentoxide (Nb2O5) is a chemically defined oxide of niobium, supplied as a powder for use in glass and ceramic manufacturing. It meets the criteria of Chapter 28 as a separate chemically defined compound, even at lower purity than electronics-grade material. The product is classified under tariff item 2825.90.00 as an 'other' metal oxide.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the product is prepared as a pigment or opacifier for glass or ceramics
Prepared pigments and opacifiers of Chapter 32 take precedence over pure oxides.
If the product is a mixture of several oxides for a specific use
Mixtures not chemically defined fall under Chapter 38.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Confirm the purity level and impurities to ensure it still qualifies as a chemically defined compound under Chapter 28
• If the powder is blended with other oxides for glass or ceramics, classification may change
• Keep supplier documentation describing the manufacturing process and composition
Related Products under Tariff item 2825.90.00
Antimony-Doped Tin Oxide (ATO) Powder
Antimony-doped tin oxide (ATO) is a powder consisting of tin dioxide doped with antimony to impart electrical conductivity. While it is a metal oxide, the doping introduces an additional element, making it a mixture rather than a single chemically defined compound. However, it is classified under tariff item 2825.90.00 as an 'other' inorganic base or metal oxide, consistent with its oxide character.
Beryllia Ceramic Powder
Beryllia ceramic powder is a high-purity form of beryllium oxide (BeO) used in aerospace and electronics for its thermal and insulating properties. It is a chemically defined inorganic compound, not a finished ceramic article, and is therefore classified under this tariff item for other inorganic bases and metal oxides.
Beryllium Hydroxide Flakes
Beryllium hydroxide flakes are a chemically defined metal hydroxide produced from beryl ore. They are used as a precursor in nuclear and ceramic applications and are classified here as an inorganic base.
Beryllium Oxide Powder
High-purity beryllium oxide powder is a chemically defined compound used in ceramics and electronics. It is not a finished product and falls under this tariff item for other metal oxides.
Cadmium Oxide Catalyst Precursor
Cadmium oxide catalyst precursor is a high-surface-area powder used as a precursor for supported catalysts in organic synthesis and petrochemical processes. It is a pure oxide, classified under tariff item 2825.90.00 as 'Other' metal oxides before impregnation on carriers. The product is a chemically defined inorganic compound of cadmium.
Cadmium Oxide for Battery Manufacturing
Cadmium oxide powder for battery manufacturing is a pure CdO form used as the active cathode material in nickel-cadmium (NiCd) rechargeable batteries. It is a chemically defined inorganic oxide of cadmium, falling under tariff item 2825.90.00 as 'Other' metal oxides. The product is not excluded by Chapter 28 notes.