Mixed Uranium-Thorium Oxide Powder (DU-ThO2)
(U0.3Th0.7)O2 powder for inert matrix fuel research, blending depleted UO2 with ThO2. As mixture containing both depleted uranium and thorium compounds >74 Bq/g, HTS 2844.30.50 covers per note 4(d). Ball-milled homogeneous.
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More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If containing transuranic elements
Mixtures with Pu/Am isotopes classify under other radioactive elements.
If mill tailings residues
Radioactive mining residues before oxide separation fall in Chapter 26.
If natural U-Th mixture
Natural isotopic composition without depletion uses 2844.10.
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Import Tips & Compliance
• Specify U/Th molar ratio; provide particle size distribution; homogenize prior to assay
Related Products under HTS 2844.30.50
Depleted Uranium Dioxide Powder
Powdered UO2 derived from uranium depleted in U235, used in nuclear fuel fabrication and radiation shielding. It falls under HTS 2844.30.50 as a compound of uranium depleted in U235, distinct from enriched uranium or other isotopes. This chemically defined inorganic compound meets Chapter 28 criteria for classification here.
Thorium Nitrate Powder
Th(NO3)4 anhydrous powder used in thorium-based nuclear fuels and high-temperature ceramics. Classified in HTS 2844.30.50 as a compound of thorium, an alpha-emitting radioactive element per heading 2844 scope. Excludes organo-inorganic compounds covered elsewhere.
Depleted Uranium Metal Ingots
Cast ingots of depleted uranium (DU) metal (<0.711% U235) for armor-penetrating projectiles and shielding. HTS 2844.30.50 covers elemental forms of depleted uranium as 'compounds' broadly includes pure metal per heading scope. Used in military and counterweight applications.
Thorium Oxide Ceramic Pellets
Sintered ThO2 pellets for mixed oxide (MOX) fuel or gas mantle production. As ceramic products containing thorium compounds with >74 Bq/g activity, classified under HTS 2844.30.50 per note 4(d). Excludes optical elements or luminophores.
Depleted Uranium Alloy Shielding Blocks
DU-titanium alloy blocks (e.g., 0.75% Ti) for gamma radiation shielding in medical containers. HTS 2844.30.50 includes alloys containing depleted uranium per heading text and note 4(d). Density >18 g/cm³ enables superior shielding.
Thorium Metal Powder
Pyrophoric thorium powder (99.9% Th-232) for research and alloying applications. Elemental thorium qualifies under HTS 2844.30.50 as covered by 'thorium and its compounds' in heading 2844.30. Stored under inert atmosphere.