Sodium Silicofluoride for Water Fluoridation
Granular Na2SiF6 is specifically formulated for municipal drinking water fluoridation systems. It falls under tariff item 2826.90.00 as sodium fluorosilicate, chemically defined per Chapter 28 criteria. The product is not excluded by Chapter 31 notes as it is not a fertilizer.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the product is a simple fluoride rather than a fluorosilicate
Simple fluorides are classified separately from complex fluorine salts.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Provide a certificate of analysis confirming the product meets water treatment grade standards
• Ensure the product is packaged in moisture-resistant containers for granular material
• Check with the CBSA if the product requires a permit under the Food and Drugs Act for water treatment
Related Products under Tariff item 2826.90.00
Aluminum Fluorotitanate
Aluminum fluorotitanate serves in titanium anodizing processes and is a complex fluorine salt under tariff item 2826.90.00. Its defined inorganic composition excludes it from mixtures or organics. The product is supplied as a solution or powder, meeting Chapter 28 criteria for chemical compounds.
Ammonium Bifluoride
Ammonium bifluoride (NH4HF2) is a complex fluorine salt used as a cleaning agent, etchant for glass and metal etching. It qualifies for tariff item 2826.90.00 as 'other complex fluorine salts' since it is not a simple fluoride. The product meets Chapter 28 criteria as a separate chemical compound.
Barium Fluorosilicate
Barium fluorosilicate (BaSiF6) serves as an insecticide and rodenticide in agricultural applications and is a complex fluorine salt under tariff item 2826.90.00. Its chemical definition as a fluorosilicate places it within this heading. The product meets Chapter 28 criteria as a separate chemical compound.
Cryolite Synthetic
Synthetic cryolite (Na3AlF6) is a key flux in aluminum production, classified as a fluoroaluminate complex fluorine salt in tariff item 2826.90.00. Unlike natural cryolite, this chemically pure synthetic version meets Chapter 28 criteria. The product is a separate chemical compound.
Fluoboric Acid 40% Solution
Fluoboric acid (HBF4), a complex fluorine salt in 40% aqueous solution, is used in metal plating and electronics etching under tariff item 2826.90.00. As tetrafluoroboric acid, it qualifies as 'other complex fluorine salts'. The product meets Chapter 28 criteria as a chemical compound in aqueous solution.
Fluostannic Acid
Fluostannic acid (H2SnF6) is used in tin plating and textile finishing, classified as other complex fluorine salts in tariff item 2826.90.00. It meets all chemical definition notes for Chapter 28. The product is supplied as a corrosive liquid.