Fluorosilicic Acid (Hexafluorosilicic Acid)
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.
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 |
PGA flags (1)Show detailsHide detailsHCActive Pharmaceutical IngredientsMay be required
- HC
Active Pharmaceutical Ingredients · May be required
May require HC Active Pharmaceutical Ingredients depending on intended use (HC13) and Canadian product category (HC01). Matching criteria: Starts With 2826. Logic: MATCH IF (Valid HS Code) AND (Intended Use Code) AND (Valid Canadian Product Category).
CBSA Single Window matching criteria, unknown
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the product is considered an inorganic acid rather than a complex fluorine salt
Other inorganic acids are classified under heading 2811.
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
• 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
Related Products under Tariff item 2826.90.00
Aluminum Fluorotitanate
Aluminum fluorotitanate is a complex fluorine salt used in titanium anodizing processes. It falls under tariff item 2826.90.00 as an 'other' complex fluorine salt, with a defined inorganic composition. This product is not a mixture or organic compound, meeting Chapter 28 Note 1 criteria.
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 an 'other' complex fluorine salt since it is not a simple fluoride. This product meets Chapter 28 Note 1 criteria as a separate chemically defined compound.
Anhydrous Lithium Hexafluorophosphate
Anhydrous lithium hexafluorophosphate (LiPF6) in granular form is used for sensitive electrochemical applications, particularly in battery electrolytes. It is thermally stable and classified under tariff item 2826.90.00 as a complex fluorine salt of lithium.
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. This product meets Chapter 28 Note 1 criteria as a separate chemically defined compound.
Barium Fluorostannite
Barium fluorostannite is a complex fluorine salt used in specialty ceramics. It falls under tariff item 2826.90.00 as other complex fluorine salts, being a multi-metal fluoride complex excluded from simple fluorides.
Battery-Grade Lithium Hexafluorophosphate
Battery-grade lithium hexafluorophosphate (LiPF6) crystals are optimized for electric vehicle battery electrolytes, meeting stringent moisture and impurity limits. This high-purity complex fluorine salt is classified under tariff item 2826.90.00.