Potassium Fluorozirconate
Potassium fluorozirconate (K2ZrF6) is used in ceramics and zirconium metal production. Falls under HTS 2826.90.90.90 as other complex fluorine salts; double salt structure qualifies per heading 2826 notes on complex salts. Excluded from organo-inorganic compounds.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If containing chlorides exceeding fluorine
Mixed halide salts may shift to chloride headings if not predominantly fluorine complex
If for zirconium carbide derivatives
Carbides specifically excluded to 2849 per Chapter note 2(e)
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Import Tips & Compliance
• Include XRF analysis confirming Zr-F bonding; use fluoropolymer packaging; verify not luminophore use per Chapter exclusions
Related Products under HTS 2826.90.90.90
Sodium Fluoroaluminate (Cryolite)
Synthetic sodium fluoroaluminate, also known as cryolite, is a complex fluorine salt used primarily as a flux in aluminum smelting processes. It falls under HTS 2826.90.90.90 as a fluoroaluminate, which is explicitly listed among other complex fluorine salts excluding fluorides and fluorosilicates. This chemically defined inorganic compound meets Chapter 28 criteria for classification here.
Potassium Fluoroaluminate
Potassium fluoroaluminate (K3AlF6) is a double salt used in metal refining and welding fluxes. Classified under HTS 2826.90.90.90 as a fluoroaluminate complex fluorine salt per Chapter 28 notes on complex salts. It qualifies as chemically defined under the subheading definition.
Fluoboric Acid (Hydrogen Tetrafluoroborate)
Fluoboric acid (HBF4) is a complex fluorine salt used in electroplating and metal cleaning. It falls under HTS 2826.90.90.90 as 'other complex fluorine salts' since fluorosilicates (fluoroborates) have specific provisions but this extends to similar complexes. Chemically defined per Chapter 28/29 notes.
Ammonium Bifluoride
Ammonium bifluoride (NH4HF2) serves as a chemical intermediate and rust remover. Under HTS 2826.90.90.90 as other complex fluorine salts; Chapter notes confirm ammonium salts of fluorine compounds belong in 2826. Chemically defined inorganic compound.
Fluorosilicic Acid (Hexafluorosilicic Acid)
Fluorosilicic acid (H2SiF6) is produced from phosphate processing, used in water fluoridation. Although fluorosilicates have provisions, concentrated forms fall under HTS 2826.90.90.90 as other complex salts when not specifically provided for. Chemically defined per subheading note.
Cesium Fluoroaluminate
Cesium fluoroaluminate is a specialty complex salt used in glass manufacturing and catalysts. Classified in HTS 2826.90.90.90 as other fluoroaluminates; qualifies as chemically defined complex fluorine salt per Chapter definitions.