Fluorosilicic Acid (Hexafluorosilicic Acid) from United States
Fluorosilicic acid (H2SiF6) is produced from phosphate processing and used in water fluoridation. Although fluorosilicates have provisions, concentrated forms fall under tariff item 2826.90.00 as other complex salts when not specifically provided for.
Duty Rate — United States → Canada
0%
Import Tips
• Confirm the concentration and purity of the acid for classification purposes
• Provide documentation showing the chemical composition
• Check if the product requires a permit under Canadian water treatment regulations