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Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides. > Vanadium oxides and hydroxides > Other
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Products classified under Tariff item 2825.90
Beryllia Ceramic Powder
Beryllia ceramic powder is beryllium oxide (BeO) in powder form, a separate chemically defined compound of beryllium. It is classified under tariff item 2825.90.00 as an 'other' inorganic base oxide, not yet formed into finished ceramic articles. The powder is used as a raw material for high-temperature ceramic substrates in aerospace applications.
2825.90.00Beryllium Hydroxide Flakes
Beryllium hydroxide flakes are a separate chemically defined compound of beryllium, produced from beryl ore processing. As a metal hydroxide, it falls under tariff item 2825.90.00 for other inorganic bases. The flake form is a raw material for nuclear reactor component precursors, not a finished article.
2825.90.00Beryllium Oxide Powder
High-purity beryllium oxide powder is a separate chemically defined compound of beryllium, used in ceramics and electronics for thermal management. It is classified under tariff item 2825.90.00 as an inorganic base oxide. The powder is not a finished ceramic article or an optical element, so it remains in Chapter 28.
2825.90.00Calcined Beryllium Oxide Granules
Calcined beryllium oxide granules are a granular form of beryllium oxide, a separate chemically defined compound. They are used for investment casting molds in aerospace turbine blades. Under tariff item 2825.90.00, the granules are classified as an inorganic base oxide, not as a shaped ceramic product.
2825.90.00Columbite-Derived Niobium Oxide
Columbite-derived niobium oxide is refined niobium pentoxide (Nb2O5) obtained from columbite ore processing. It is a separate chemically defined compound of niobium. Under tariff item 2825.90.00, it is classified as an inorganic base oxide, not as a mineral ore.
2825.90.00Electronic-Grade Niobium Oxide Pellets
Electronic-grade niobium oxide pellets are pelletized niobium pentoxide (Nb2O5) used for capacitor doping. The pellets are a separate chemically defined compound of niobium in a physical form that does not alter classification. Under tariff item 2825.90.00, they are classified as an inorganic base oxide.
2825.90.00High-Purity Beryllium Oxide for LEDs
Ultra-pure beryllium oxide powder for LED substrates is a chemically defined compound of beryllium. It is classified under tariff item 2825.90.00 as an inorganic base oxide. The powder is not a finished optical element or a doped electronic material, so it remains in Chapter 28.
2825.90.00High-Purity Niobium Oxide Nb2O5 for Capacitors
High-purity niobium oxide (Nb2O5) for capacitors is a separate chemically defined compound of niobium with purity exceeding 99.9%. It is used in tantalum capacitor production. Under tariff item 2825.90.00, it is classified as an inorganic base oxide, meeting the requirements of Chapter 28.
2825.90.00Hydrated Niobium Oxide Nb2O5·nH2O
Hydrated niobium oxide (Nb2O5·nH2O) is a hydrated form of niobium pentoxide used in catalysts. It is a separate chemically defined compound, and hydrates of metal oxides remain classified as oxides. Under tariff item 2825.90.00, it is classified as an inorganic base oxide.
2825.90.00Nano Beryllium Oxide Particles
Nano beryllium oxide particles are nanoscale beryllium oxide, a separate chemically defined compound. They are used in advanced composites and catalysts. Under tariff item 2825.90.00, the particles are classified as an inorganic base oxide regardless of particle size, as Chapter 28 does not exclude nanomaterials.
2825.90.00Niobium Dioxide Granules (NbO2)
Niobium dioxide granules (NbO2) are a lower oxide of niobium, a separate chemically defined compound. They are used in catalysis and advanced ceramics. Under tariff item 2825.90.00, they are classified as an inorganic base oxide, not as a finished ceramic product.
2825.90.00Niobium Monoxide Powder (NbO)
Niobium monoxide powder (NbO) is a separate chemically defined compound of niobium, used in research and alloy production. It is classified under tariff item 2825.90.00 as an inorganic base oxide. The powder form is not a finished article.
2825.90.00Niobium Oxide Nanoparticles Nb2O5
Niobium oxide nanoparticles (Nb2O5) are nanoscale niobium pentoxide, a separate chemically defined compound. They are used in advanced materials research. Under tariff item 2825.90.00, they are classified as an inorganic base oxide regardless of particle size.
2825.90.00Niobium Oxide Sputtering Target Material
Niobium oxide sputtering target material is niobium pentoxide (Nb2O5) in sintered form for thin-film deposition. It is a separate chemically defined compound, not a finished optical element or fully worked article. Under tariff item 2825.90.00, it is classified as an inorganic base oxide.
2825.90.00Synthetic Beryllium Hydroxide
Synthetic beryllium hydroxide is a precipitated form of beryllium hydroxide, a separate chemically defined compound. It is used as an intermediate in beryllia ceramics production and metal extraction. Under tariff item 2825.90.00, it is classified as an inorganic base hydroxide.