PFOS Lithium Salt Aqueous Solution 70%
A 70% aqueous solution of lithium perfluorooctane sulfonate (Li-PFOS) intended for use in firefighting foam production. Under Chapter 29 Note 1(d), products of heading 29.04 dissolved in water remain classifiable in the chapter, and thus this solution falls under tariff item 2904.33.00 as the lithium salt of perfluorooctane sulfonic acid.
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 |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the solution contains additional surfactants or other chemicals that make it a formulated preparation for firefighting foam
Prepared chemical products may apply when the solution is not simply a dilution of the pure compound.
If the solution is of perfluorooctane sulphonic acid rather than its lithium salt
The acid is classified separately from its 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
• Confirm that the solution is solely a water dilution of the pure compound, with no other solvents or additives, to maintain classification under 2904.33.00
• Note that PFOS is a persistent organic pollutant under the Stockholm Convention; verify that the import is permitted under Canadian regulations and obtain any necessary permits
• Clearly state the concentration and chemical composition on the import documentation
Related Products under Tariff item 2904.33.00
High-Purity Li-PFOS for Electroplating Baths
High-purity lithium perfluorooctane sulfonate (Li-PFOS) in a form designed for use as a surfactant in electroplating baths. It is the lithium salt of perfluorooctane sulfonic acid, a halogenated, sulphonated derivative of a hydrocarbon, and is therefore classifiable under tariff item 2904.33.00.
Lithium Perfluorooctane Sulfonate Powder
Pure lithium perfluorooctane sulfonate (Li-PFOS) in powdered form, used as a fluorinated surfactant in various industrial applications. As the lithium salt of perfluorooctane sulfonic acid, it is a sulphonated, halogenated derivative of a hydrocarbon, falling squarely under tariff item 2904.33.00.
Lithium Perfluorooctane Sulfonate Stabilized Flake
Stabilized flake form of lithium perfluorooctane sulfonate (Li-PFOS) containing a minimal anti-caking agent added solely for safe transport and preservation. Under Chapter 29 Note 1(f), such additions are permitted without changing the classification, so the product remains classifiable under tariff item 2904.33.00 as the lithium salt of perfluorooctane sulfonic acid.
Research Grade Lithium PFOS (>99%)
Research-grade lithium perfluorooctane sulfonate (Li-PFOS) with a purity exceeding 99%, intended for laboratory research on fluorosurfactants. As a separate chemically defined organic compound, it meets the criteria of Chapter 29 Note 1(a) and is classifiable under tariff item 2904.33.00 as the lithium salt of perfluorooctane sulfonic acid.
Technical Grade Lithium PFOS Crystals
Technical-grade lithium perfluorooctane sulfonate (Li-PFOS) in crystalline form, used as a raw material in surfactant manufacturing. It is the lithium salt of perfluorooctane sulfonic acid, a halogenated, sulphonated derivative of a hydrocarbon, and is classifiable under tariff item 2904.33.00.