Copper oxides and hydroxides
Borates; peroxoborates (perborates). > Disodium tetraborate (refined borax): > Copper oxides and hydroxides > Copper oxides and hydroxides
Duty Rate (from China)
Subheadings
Products classified under Tariff item 2825.50.00
Battery Grade Cuprous Oxide Nanoparticles
Nano-scale cuprous oxide (Cu2O) particles (20-50 nm) for lithium-ion battery electrode materials and supercapacitors. This chemically defined copper oxide is classified under tariff item 2825.50.00 by composition.
Copper Hydroxide Crystals
Synthetic copper hydroxide crystals serve in laboratory reagents and pigment synthesis with high purity. These chemically defined copper hydroxide crystals are classified under tariff item 2825.50.00, excluding cultured crystals over 2.5g per Chapter 28 notes.
Cupric Oxide Black Powder
High-purity cupric oxide (CuO) in fine black powder form, used primarily as a pigment in ceramics and glass manufacturing. This chemically defined copper oxide falls under tariff item 2825.50.00 as a copper oxide, meeting the requirements of Chapter 28 for separate chemically defined compounds.
Cupric Oxide Catalyst Precursor
High-surface-area cupric oxide powder serving as precursor for copper-based catalysts in chemical reactions. This chemically defined copper oxide is classified under tariff item 2825.50.00 as it is a pure metal oxide, not a spent catalyst or formulated catalyst product.
Cupric Oxide for Animal Feed
Granular cupric oxide supplement providing trace copper for livestock nutrition. This pure copper oxide is classified under tariff item 2825.50.00 as a chemically defined inorganic compound, not a finished feed product per Chapter 31 exclusions.
Cupric Oxide Nanom powder
Nano-sized cupric oxide particles (<100nm) for advanced materials like sensors and batteries. This chemically defined inorganic compound falls under tariff item 2825.50.00 regardless of particle size, per Chapter 28 definitions.
Cupric Oxide Sintered Pellets
Sintered cupric oxide pellets used in electronics for sputtering targets and thin-film deposition. This form qualifies under tariff item 2825.50.00 as chemically defined cupric oxide, not processed beyond basic shaping per Chapter 28.
Cupric Oxide Technical Grade
Technical-grade cupric oxide powder for use in chemical manufacturing and as a catalyst precursor. This pure inorganic compound of copper in the +2 oxidation state aligns with tariff item 2825.50.00.
Cuprous Oxide Agricultural Fungicide Active
Technical cuprous oxide powder serving as the active ingredient in copper-based fungicides for crop protection. This bulk metal oxide is classified under tariff item 2825.50.00, not as a formulated pesticide product.
Cuprous Oxide Catalyst Precursor
Synthetic cuprous oxide powder used as a precursor in manufacturing copper-based catalysts for organic synthesis reactions. This pure metal oxide is classified under tariff item 2825.50.00, prior to activation or support.
Cuprous Oxide Micronized Powder for Ceramics
Micronized cuprous oxide (Cu2O) particles with average size under 5 microns, used as a colorant in ceramic glazes to produce red hues. This chemically defined copper oxide is classified under tariff item 2825.50.00.
Cuprous Oxide Red Pigment Powder
High-purity cuprous oxide (Cu2O) in fine red powder form, used primarily as a pigment in paints, coatings, and antifouling marine paints. This chemically defined cuprous oxide falls under tariff item 2825.50.00.
Pharmaceutical Grade Cuprous Oxide USP
Ultra-pure cuprous oxide (Cu2O) meeting USP standards for use in pharmaceutical and nutraceutical applications as a trace mineral source. This chemically defined inorganic copper oxide is classified under tariff item 2825.50.00.
Synthetic Cupric Oxide Crystals
Laboratory-grown cupric oxide single crystals for optical and research applications. These chemically defined crystals qualify under tariff item 2825.50.00, excluding cultured crystals of certain halides over 2.5g per Chapter 28 notes.
Technical Grade Cuprous Oxide for Antifouling Paints
Technical-grade cuprous oxide powder (Cu2O) with 97% minimum purity, specifically formulated for use in marine antifouling paints to prevent biofouling on ship hulls. This pure cuprous oxide is classified under tariff item 2825.50.00.