Diethanolamine Perfluorooctane Sulfonate
Diethanolamine perfluorooctane sulfonate pairs a organic base with PFOS for water-soluble applications. Classified in HTS 2904.35.00.00 as an other salt, following chapter rules for organic salts of sulfonated compounds.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If oxygen/nitrogen functions dominate classification
Amino alcohol salts may shift if base characteristics prevail over acid per numerical order rule.
If surface-active preparations containing this salt
Formulations for specific uses like detergents exclude from pure chapter 29 compounds.
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Import Tips & Compliance
• Document salt formation per chapter note (C); provide synthesis route if challenged
• Beware end-use declarations; PFOS salts often trigger additional homeland security scrutiny
• Package to prevent decomposition; instability may classify as hazardous material
Related Products under HTS 2904.35.00.00
Lithium Perfluorooctane Sulfonate
Lithium perfluorooctane sulfonate is the lithium salt of perfluorooctane sulfonic acid (PFOS), a fully fluorinated organic compound with a sulfonate group. It falls under HTS 2904.35.00.00 as one of the 'other salts' of PFOS, distinct from the acid itself or its sulfonyl fluoride, per chapter 29 rules for sulfonated halogenated hydrocarbons.
Potassium Perfluorooctane Sulfonate
Potassium perfluorooctane sulfonate (potassium PFOS) is a perfluorinated sulfonate salt used in specialty chemical applications. Classified under HTS 2904.35.00.00 as an 'other salt' of perfluorooctane sulfonic acid, fitting chapter 29 for halogenated sulfonated hydrocarbon derivatives.
Ammonium Perfluorooctane Sulfonate
Ammonium perfluorooctane sulfonate is the ammonium salt form of PFOS, a fluorosurfactant precursor. It qualifies for HTS 2904.35.00.00 as an other salt of perfluorooctane sulfonic acid under the sulfonated, halogenated hydrocarbons of heading 2904.
Sodium Perfluorooctane Sulfonate
Sodium perfluorooctane sulfonate (Na-PFOS) serves as a surfactant intermediate with high surface activity due to its perfluoroalkyl chain. Under HTS 2904.35.00.00 as other PFOS salts, per chapter 29 for chemically defined sulfonated fluorohydrocarbons.
Triethylammonium Perfluorooctane Sulfonate
Triethylammonium perfluorooctane sulfonate is an ionic liquid precursor from PFOS and triethylamine. It fits HTS 2904.35.00.00 for other PFOS salts as a chemically defined sulfonated perfluoro compound.
Pyridinium Perfluorooctane Sulfonate
Pyridinium perfluorooctane sulfonate uses pyridine as cation with PFOS anion for catalytic uses. Under HTS 2904.35.00.00 as specified other salts of perfluorooctane sulfonic acid in heading 2904.