Neptunium-237 Oxide Powder
Neptunium-237 oxide used in research and as burnable poison in reactors, classified as 'other' radioactive compound (element 93) in 2844.43.0028. Excluded from specific subheadings.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If specifically enumerated isotopes
Limited specific isotopes have 2844.43.0010; others default to .0028.
If antimony/tungsten based without radioactivity
Non-radioactive metal oxides classify under regular inorganic salts.
If inorganic luminophores
Radioactive luminophores specifically excluded to Chapter 32 per Chapter Note 2(e).
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Import Tips & Compliance
• Submit Category II nuclear material license; calculate transport index accurately; ensure criticality control per ANSI N14.1 standards
Related Products under HTS 2844.43.00.28
Uranium-235 Enriched Isotope
Uranium-235 is a fissile isotope used in nuclear reactors and weapons, classified under HTS 2844.43.0028 as a radioactive isotope other than those in subheadings 2844.10, 2844.20, or 2844.30. It meets the definition of artificially modified isotopic mixtures with specific radioactivity exceeding natural levels.
Plutonium-239 Dioxide Powder
Plutonium-239 dioxide (PuO2) is a fissile compound used in mixed oxide (MOX) nuclear fuel, classified here as a radioactive compound of an element with atomic number >84. It qualifies under note 4(c) for chemically defined compounds of transuranic elements.
Americium-241 Oxide Source Material
Americium-241 oxide (AmO2) serves as a calibration source for detectors and in neutron sources, fitting 2844.43.0028 for compounds of radioactive elements (atomic no. 95). Exceeds 74 Bq/g threshold per Chapter Note 4.
Curium-244 Isotope Alloy
Curium-244 alloyed with carrier metals for research reactor targets, classified as an alloy containing radioactive isotopes under 2844.43.0028 per note 4(d). High specific radioactivity qualifies it for this heading.
Californium-252 Neutron Source
Californium-252 metal encapsulated as portable neutron source for oil well logging and radiography, under 2844.43.0028 as a compound/isotope of element 98. Meets chemically defined criteria of Chapter Notes.
Promethium-147 Ceramic Dispersion
Promethium-147 dispersed in ceramic matrix for beta batteries and thickness gauges, under 2844.43.0028 as dispersion containing radioactive isotope (atomic no. 61). Specific activity >74 Bq/g.