Tungstates (wolframates)
Radioactive chemical elements and radioactive isotopes (including the fissile or fertile chemical elements and isotopes) and their compounds; mixtures and residues containing these products. > Tungstates (wolframates) > Tungstates (wolframates)
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Products classified under Tariff item 2841.80.00
Ammonium Metatungstate Granules
Ammonium metatungstate granules are a water-soluble ammonium salt of tungstic acid, conforming to the chemical definition of a tungstate. The spray-dried form ensures uniform particle size for consistent tungsten powder production and thermal spraying applications.
Ammonium Tungstate Powder
Ammonium tungstate powder is an ammonium salt of tungstic acid, classified as a tungstate under heading 28.41. It serves as a key precursor in the production of tungsten carbide for cutting tools and as a source of tungsten in various chemical processes.
Barium Tungstate Precipitate
Barium tungstate precipitate is a chemically defined inorganic salt of tungstic acid, falling under the tungstates classification. Its insolubility makes it valuable in X-ray contrast media and as a white pigment with stable opacity.
Calcium Tungstate Powder
Calcium tungstate powder is a chemically defined tungstate salt used as a scintillator material in medical imaging detectors. Its high density and luminescent properties make it suitable for radiation detection applications.
Cerium Tungstate Catalyst
Cerium tungstate catalyst is a chemically defined tungstate of cerium, classified under heading 28.41. Its high surface area structure makes it effective as a heterogeneous catalyst in oxidation reactions.
Disodium Tungstate Anhydrous
Disodium tungstate anhydrous is a high-purity alkali metal tungstate salt, classified under heading 28.41. It is used as a reagent in protein crystallization and as a corrosion inhibitor in various industrial applications.
Lithium Tungstate Solution Precursor
Lithium tungstate powder is a chemically defined tungstate salt used as a precursor for solid-state electrolytes in battery applications. It offers high ionic conductivity and is classified under heading 28.41.
Magnesium Tungstate Luminescent Grade
Magnesium tungstate luminescent grade is a chemically defined tungstate salt used in fluorescent screens and lamps. It emits blue light under electron excitation and is classified under heading 28.41.
Phosphotungstic Acid Sodium Salt
Sodium phosphotungstate is a complex tungstate salt used in analytical chemistry for protein precipitation. Despite containing phosphate, it is classified as a tungstate under heading 28.41 due to its tungstate core structure.
Potassium Tungstate Crystals
Potassium tungstate crystals are large colorless crystals of a chemically defined tungstate salt. They are used in X-ray fluorescence standards and glass manufacturing, classified under heading 28.41.
Silicotungstic Acid Hydrate
Silicotungstic acid hydrate is a tungstate-based compound used as a catalyst in esterification reactions. Its tungstate core structure supports classification under heading 28.41 as a tungstate.
Sodium Paratungstate Pentahydrate
Sodium paratungstate pentahydrate is an isopolyoxotungstate used in metal finishing applications. It forms protective conversion coatings and is classified as a tungstate under heading 28.41.
Sodium Tungstate Dihydrate
Sodium tungstate dihydrate is a white crystalline salt derived from tungstic acid, classified as a tungstate under heading 28.41. It is commonly used in the production of tungsten metal and various chemical applications.
Strontium Tungstate Fine Powder
Strontium tungstate fine powder is a chemically defined tungstate salt used in laser host materials and phosphors. Its efficient energy transfer properties make it valuable in optical applications, classified under heading 28.41.
Zinc Tungstate Diagnostic Grade
Zinc tungstate diagnostic grade is a chemically defined tungstate salt used in CT scanner scintillators. Its fast decay time makes it suitable for medical imaging, classified under heading 28.41.