Thorium compounds
Radioactive chemical elements and radioactive isotopes (including the fissile or fertile chemical elements and isotopes) and their compounds; mixtures and residues containing these products: > Uranium depleted in U235 and its compounds; thorium and its compounds; alloys, dispersions (including cermets), ceramic products and mixtures containing uranium depleted in U235, thorium, or compounds of these products: > Thorium compounds
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Products classified under HTS 2844.30.10.00
Thorium Nitrate
Thorium nitrate (Th(NO3)4) is a chemically defined inorganic salt of thorium, used in chemical research and as a precursor for thorium-based ceramics. It falls under HTS 2844.30.10.00 as a thorium compound, specifically covered by Chapter 28 notes for metal salts and radioactive element compounds.
Thorium Dioxide Powder
High-purity thorium dioxide (ThO2), also known as thoria, used in gas mantles and high-temperature ceramics. Classified under HTS 2844.30.10.00 as a thorium oxide compound per Chapter 28 provisions for chemically defined inorganic compounds.
Thorium Sulfate Solution
Aqueous solution of thorium sulfate (Th(SO4)2), used in analytical chemistry and metal recovery. Classified in HTS 2844.30.10.00 as a thorium compound, chemically defined per Chapter 28.
Depleted Thorium Metal Powder
Powdered thorium metal depleted of short-lived isotopes, used in alloy research. HTS 2844.30.10.00 covers thorium and its compounds, including elemental forms as per heading scope.
Thorium Tungstate
Double salt thorium tungstate used in scintillation detectors. As a complex thorium compound, classified under HTS 2844.30.10.00 per Chapter note on complex salts.
High-Purity Thorium Chloride
Anhydrous thorium chloride (ThCl4) for organometallic synthesis. Chemically defined thorium compound under HTS 2844.30.10.00.
Thorium Acetylacetonate
Organothorium coordination compound used as catalyst precursor. Still classified as inorganic thorium compound under HTS 2844.30.10.00 per Chapter notes excluding organo-inorganics.
Thorium Phosphate Precipitate
Insoluble thorium phosphate used in waste treatment research. HTS 2844.30.10.00 for thorium compounds.
Thorium Oxalate Crystals
Thorium oxalate (Th(C2O4)2) in crystalline form, an intermediate in thorium purification processes. It qualifies under HTS 2844.30.10.00 as a chemically defined thorium compound meeting Chapter 28 Note 1 requirements.
Thorium Tetrafluoride
Thorium tetrafluoride (ThF4), a fluoride compound used in nuclear fuel processing and optics. Falls under HTS 2844.30.10.00 as a chemically defined thorium halide compound.