Gadolinium Oxide (Gd2O3) 99.99% Pure
Ultra-pure gadolinium oxide for MRI contrast agents and phosphors. HTS 2846.90.20.40 covers this as a chemically defined rare-earth oxide of gadolinium, excluding cerium oxides per subheading.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If blended with other rare-earth oxides
Specific subheading for oxide mixtures vs pure 'other' rare-earth oxides.
If pharmaceutical grade for direct medical use
Prepared pharmaceutical forms exclude to Chapter 30.
If as rare-earth chloride instead of oxide
Chloride forms have dedicated subheading.
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Import Tips & Compliance
• Include lot-specific ICP-MS analysis confirming >99.99% gadolinium oxide
• Declare exact chemical formula to avoid scrutiny as 'other mixtures'
• Comply with US FDA import alerts for medical precursor chemicals
Related Products under HTS 2846.90.20.40
Yttrium Oxide Powder (Y2O3)
High-purity yttrium oxide powder used in ceramics, superconductors, and phosphors for electronics. Classified under HTS 2846.90.20.40 as a chemically defined compound of the rare-earth metal yttrium, specifically a rare-earth oxide excluding cerium oxides. It meets Chapter 28 criteria for inorganic compounds of rare-earth metals.
Europium Oxide (Eu2O3) High Purity
Europium oxide used as red phosphor activator in fluorescent lamps and displays. Falls under HTS 2846.90.20.40 as a pure rare-earth oxide compound excluding cerium, per Chapter 28 definitions for inorganic rare-earth metal compounds.
Dysprosium Oxide (Dy2O3) Technical Grade
Technical grade dysprosium oxide used in permanent magnets and laser materials. Fits HTS 2846.90.20.40 as a rare-earth oxide compound of dysprosium, chemically defined per Chapter 28.
Neodymium Oxide (Nd2O3) 99.5% Purity
Neodymium oxide powder for glass coloring and NdFeB magnet production. Classified under HTS 2846.90.20.40 as a non-cerium rare-earth oxide compound.
Praseodymium Oxide (Pr6O11) Powder
Praseodymium oxide for ceramic capacitors and welding goggles. HTS 2846.90.20.40 applies to this pure rare-earth oxide excluding cerium compounds.
Holmium Oxide (Ho2O3) High Purity
Holmium oxide used in optical glass and calibration standards. Covered by HTS 2846.90.20.40 as an inorganic compound of rare-earth holmium.