Ammonium Diuranate Powder (ADU)
Ammonium diuranate ((NH4)2U2O7) is the primary precipitate from natural uranium ore leaching processes. Classified in HTS 2844.10.20.55 as other uranium compounds of natural origin. Yellow cake precursor calcined to UO3 or UO2 for fuel fabrication.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If further purified to uranium oxide directly from natural sources
More specific uranium oxide compounds may precede 'other' catch-all subheading
If containing nitrogen but below radioactive classification thresholds
Ammonium compounds primarily as fertilizers exclude Chapter 28 per exclusion notes
If still containing significant uranium ore matrix
Uranium ores and concentrates classify in Chapter 26 before chemical processing
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Import Tips & Compliance
• Submit Form 741 prior to import per NRC regulations; ensure uranium assay certificates accompany shipment
• Monitor for moisture content affecting criticality safety
Related Products under HTS 2844.10.20.55
Uranium Dioxide Powder (UO2)
Uranium dioxide (UO2) is a chemically defined compound of natural uranium used primarily as fuel in nuclear reactors. It falls under HTS 2844.10.20.55 as an 'other' uranium compound derived from natural uranium sources. This black powder is processed for ceramic pellet fabrication in the nuclear fuel cycle.
Uranium Tetrafluoride Crystals (UF4)
Uranium tetrafluoride (UF4), also known as green salt, is an intermediate compound in uranium processing from natural ore to fuel. Classified under HTS 2844.10.20.55 as an other uranium compound of natural origin. Used in conversion plants to produce UF6 for enrichment.
Uranyl Nitrate Solution (UO2(NO3)2)
Uranyl nitrate hexahydrate solution serves as a soluble intermediate in uranium purification from natural sources. This yellow compound falls under HTS 2844.10.20.55 as other natural uranium compounds. Essential for solvent extraction processes in nuclear fuel production.
Triuranium Octoxide (U3O8) Yellowcake
U3O8, commonly called yellowcake, represents purified natural uranium oxide from milling operations. Falls under HTS 2844.10.20.55 as other natural uranium compounds. Standard international trade form containing 70-90% U3O8 shipped to conversion facilities.
Uranium Trioxide Powder (UO3)
Uranium trioxide (UO3) results from thermal decomposition of ammonium diuranate in purification circuits. This orange-yellow powder classifies under HTS 2844.10.20.55 as other natural uranium compounds. Intermediate for producing high-purity UF6 feedstock.
Natural Uranium Peroxide Precipitate
Uranium peroxide (UO4·2H2O) precipitates during ore processing as alternative to ADU route. Falls under HTS 2844.10.20.55 for other natural uranium compounds. White precipitate converts thermally to oxides for fuel cycle.