Cerium Oxide (CeO2) Polishing Powder
High-purity cerium oxide powder used for precision polishing of glass surfaces in optical lenses and displays. It falls under HTS 2846.10.0050 as a chemically defined inorganic compound of the rare-earth metal cerium, specifically classified as 'other' cerium compounds. This subheading covers cerium-based polishing agents not elsewhere specified.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If sold as a mixture with other rare-earth oxides
Complex mixtures of rare-earth oxides may classify under oxides of rare-earths in heading 2811 rather than specific cerium compounds.
If prepared as a formulated polishing paste for retail sale
Prepared mixtures for polishing, not chemically defined pure compounds, fall under chemical preparations in heading 3824.
If containing mixtures of multiple rare-earth metals beyond primarily cerium
Compounds of mixed rare-earths (not predominantly cerium) are classified in the 'other' mixtures subheading 2846.90.
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Import Tips & Compliance
• Verify purity levels and provide chemical composition certificates to confirm classification as a chemically defined cerium compound per Chapter 28 notes
• Ensure SDS (Safety Data Sheets) comply with HAZMAT regulations, as cerium oxide may require special handling during import
• Avoid misclassification as a glass polishing mixture (heading 3208) by documenting its use as a pure chemical compound
Related Products under HTS 2846.10.00.50
Cerium Nitrate Hexahydrate (Ce(NO3)3·6H2O)
Crystalline cerium nitrate used as a catalyst precursor and in specialty glass manufacturing. Classified under HTS 2846.10.0050 as an 'other' inorganic compound of cerium, a rare-earth metal, meeting Chapter 28 definitions for chemically defined compounds. Excludes salts covered in other specific headings like nitrates of heading 2834.
Cerium Acetylacetonate
Organometallic cerium compound used as a precursor in chemical vapor deposition for thin films. It qualifies for HTS 2846.10.0050 as an organic compound of rare-earth cerium, per subheading note definitions linking to Chapter 29 organic compounds. Ideal for electronics and catalysis applications.
Cerium Fluoride (CeF3) Crystals
Synthetic cerium fluoride crystals used in optical coatings and laser components. Falls under HTS 2846.10.0050 as an inorganic cerium compound, distinct from alkali fluorides, per Chapter 28 exclusions and definitions. Not classified as optical elements per note 8(h).
Cerium Iodide (CeI3) Powder
Cerium iodide powder employed as a scintillator material in radiation detectors. Classified in HTS 2846.10.0050 as an 'other' inorganic compound of cerium, adhering to chemically defined criteria and excluding luminophores of heading 3206 per Chapter notes.
Cerium Sulfate Octahydrate
Hydrated cerium(IV) sulfate used in water treatment and as an oxidizing agent. It is an 'other' cerium compound under HTS 2846.10.0050, as sulfates of rare-earths are not covered by general sulfate headings (2833) per Chapter structure.
Cerium Ammonium Nitrate
Double salt of cerium and ammonium nitrate used in organic synthesis as an oxidant. HTS 2846.10.0050 applies as a cerium compound, but note 5 directs certain double salts to 2842; classified here as 'other' per statistical reporting.