Monoclinic Zirconia Powder
Monoclinic phase zirconium dioxide powder is used in jewelry and structural ceramics. Classified in HTS 2825.60.00.50 as other zirconium dioxide, a basic metal oxide outside Chapter exclusions.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If derived from natural zircon sand without full refinement
Unrefined zircon (ZrSiO4) is a natural mineral in Chapter 25, not synthetic oxide.
If sintered into synthetic gemstones
Processed into jewelry articles moves to Chapter 71.
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Import Tips & Compliance
• Include X-ray diffraction (XRD) reports confirming monoclinic phase for accurate heading
• Avoid bulk packaging that mimics refractory materials to prevent Chapter 69 misclassification
• Declare exact purity to differentiate from lower-grade industrial zircon sands
Related Products under HTS 2825.60.00.50
High-Purity Germanium Dioxide
High-purity germanium dioxide (GeO2) is a chemically defined inorganic compound used primarily in the production of germanium metal and optical fibers. It falls under HTS 2825.60.00.50 as 'other' germanium oxides, distinct from any specific statistical suffixes, due to its classification as a metal oxide in Chapter 28.
Zirconium Dioxide Nanopowder
Zirconium dioxide (ZrO2) nanopowder with particle sizes under 100 nm is used in advanced ceramics and fuel cells. Classified under HTS 2825.60.00.50 as 'other' zirconium dioxide, as it is a chemically defined metal oxide not covered by other specific subheadings.
Synthetic Yttria-Stabilized Zirconia Powder
Yttria-stabilized zirconia (YSZ) powder, typically 8 mol% Y2O3-doped ZrO2, is a complex metal oxide for thermal barrier coatings. It qualifies under HTS 2825.60.00.50 as 'other' zirconium dioxide, meeting Chapter 28 definitions for chemically defined inorganic compounds.
Electronic-Grade Germanium(IV) Oxide
Electronic-grade GeO2 with impurity levels below 1 ppm is essential for semiconductor substrates and fiber optics. Falls under HTS 2825.60.00.50 as other germanium oxides, as a pure inorganic metal oxide per Chapter 28.
Hydrated Germanium Dioxide
Hydrated GeO2, often as GeO2·H2O, serves as an intermediate in germanium refining. It is included under HTS 2825.60.00.50 as other germanium oxides, treated as chemically defined hydroxides/oxides.
Zirconium Dioxide for Dental Applications
High-strength ZrO2 powder for dental crowns and implants, often pre-sintered. Falls under HTS 2825.60.00.50 as other zirconium dioxide prior to final shaping.