Sodium Silicofluoride Powder from Mexico
Sodium silicofluoride (Na2SiF6) is a white crystalline powder used primarily as a fluoridating agent in water treatment to prevent tooth decay. It falls under HTS 2826.90.1000 as it is a chemically defined fluorosilicate of sodium, specifically classified among complex fluorine salts in Chapter 28. This inorganic compound meets the criteria for subheading 2852.10 but is explicitly placed here.
Duty Rate — Mexico → United States
14.1%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Verify purity and chemical composition via lab analysis for accurate HTS classification; obtain EPA approvals for water treatment uses; ensure packaging prevents moisture absorption during transit