Synthetic Cryolite Powder from China
Synthetic cryolite, chemically sodium hexafluoroaluminate (Na3AlF6), is a white crystalline powder used primarily as a flux in aluminum smelting to lower the melting point of alumina. It falls under HTS 2826.30.00.00 as a complex fluorine salt of sodium and aluminum, distinct from natural cryolite. This industrial-grade product is supplied in bulk bags for metallurgical applications.
Duty Rate — China → United States
25%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Verify purity levels (>98% Na3AlF6) via certificate of analysis to confirm classification; ensure MSDS includes fluoride hazard warnings for DOT compliance
• Avoid misdeclaration as aluminum fluoride (2826.19) to prevent audits