Perfluorooctane Sulfonamide Potassium Salt
Perfluorooctane sulfonamide potassium salt is the potassium salt form of perfluorooctane sulfonamide, used in aqueous fluorosurfactant formulations. Under Chapter 29 Note 5(C)(1), inorganic salts of organic compounds are classified in the heading appropriate to the organic compound, which is tariff item 2935.50.00. The product is a chemically defined compound and qualifies as an 'other perfluorooctane sulphonamide'.
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 salt is not derived from perfluorooctane sulfonamide
Other sulfonamide salts not specifically perfluorooctane-based.
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 documentation confirming the salt's identity and the parent compound's classification to CBSA
• Verify that the product complies with Canadian regulations on perfluorooctane sulfonates and related substances
• Ensure the product is not used in applications that are prohibited under Canadian environmental laws, and declare its intended use to support classification
Related Products under Tariff item 2935.50.00
N-Ethyl-N-(2-hydroxyethyl)perfluorooctane Sulfonamide
N-Ethyl-N-(2-hydroxyethyl)perfluorooctane sulfonamide is a separate chemically defined organic compound used as a reactive intermediate in fluoropolymer synthesis. Its structure contains a perfluorooctane sulfonamide core with an N-ethyl and N-hydroxyethyl substituent, qualifying it as an 'other perfluorooctane sulphonamide' under tariff item 2935.50.00. The compound meets Chapter 29 criteria as a chemically defined product, not excluded by any chapter note.
N-Ethylperfluorooctane Sulfonamide
N-Ethylperfluorooctane sulfonamide (N-EtPFOSA) is a separate chemically defined compound used as an intermediate in fluorosurfactant production. Its structure comprises a perfluorooctane sulfonamide group with an N-ethyl substituent, placing it squarely under tariff item 2935.50.00 as an 'other perfluorooctane sulphonamide'. The product is not excluded by Chapter 29 notes and is classifiable as a chemically defined organic compound.
N-Ethylperfluorooctane Sulfonamide (EtFOSA)
N-Ethylperfluorooctane sulfonamide (EtFOSA) is a chemically defined perfluorooctane sulfonamide used as a degradation product marker and synthetic intermediate in PFAS research. As a separate compound with a perfluorooctane sulfonamide structure, it falls under tariff item 2935.50.00. The product meets Chapter 29's definition of a chemically defined organic compound and is not excluded by any legal note.
N-Methylperfluorooctane Sulfonamide
N-Methylperfluorooctane sulfonamide (N-MePFOSA) is a separate chemically defined compound used in the manufacture of water- and oil-repellent coatings. Its perfluorooctane sulfonamide structure with an N-methyl group qualifies it under tariff item 2935.50.00 as an 'other perfluorooctane sulphonamide'. The product is classifiable under Chapter 29 as a chemically defined organic compound, with no exclusions applying.
N-Methylperfluorooctane Sulfonamido Ethanol (MeFOSE)
N-Methylperfluorooctane sulfonamido ethanol (MeFOSE) is a key building block for producing fluorochemical polymers used in surface treatments. This compound contains a perfluorooctane sulfonamide group with an N-methyl and N-hydroxyethyl substituent, qualifying it under tariff item 2935.50.00. As a chemically defined organic compound, it meets Chapter 29 requirements and is not excluded by any legal note.
Perfluorooctane Sulfonamide (PFOSA)
Perfluorooctane sulfonamide (PFOSA) is the parent compound of the perfluorooctane sulfonamide family, used in analytical standards and research. Its structure consists of a perfluorooctane sulfonyl group bonded to an amine, placing it directly under tariff item 2935.50.00 as an 'other perfluorooctane sulphonamide'. The product is a separate chemically defined compound, classifiable under Chapter 29 without exclusion.