Perfluorooctanoic acids and their salts
Saturated acyclic monocarboxylic acids and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives: > Other: > Acids: > Other: > Other > Perfluorooctanoic acids and their salts
Duty Rate (from China)
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Products classified under HTS 2915.90.18.10
Perfluorooctanoic Acid (PFOA)
Perfluorooctanoic acid (PFOA) is a synthetic perfluorinated carboxylic acid with the formula C7F15COOH, classified under HTS 2915.90.18.10 as a saturated acyclic monocarboxylic acid that is fully fluorinated. It is a chemically defined organic compound used primarily in industrial applications despite regulatory restrictions.
Ammonium Perfluorooctanoate
Ammonium perfluorooctanoate is the ammonium salt of perfluorooctanoic acid (C7F15COO⁻NH4⁺), explicitly covered under HTS 2915.90.18.10 as a salt of this specific perfluorinated carboxylic acid. It was historically used as a processing aid in fluoropolymer production like Teflon.
Sodium Perfluorooctanoate
Sodium perfluorooctanoate (C7F15COONa) is the sodium salt form of PFOA, classified under HTS 2915.90.18.10 per Chapter Note 5(C)(1) which directs organic salts to the heading of the parent acid. Used in surfactant applications and chemical synthesis.
PFOA Potassium Salt
The potassium salt of perfluorooctanoic acid (C7F15COOK) qualifies under HTS 2915.90.18.10 as a salt of the named perfluorinated acid, following classification rules for organic salts. Applied in emulsifier formulations for specialty polymers.
PFOA Lithium Salt
Lithium perfluorooctanoate (C7F15COOLi), a metal salt of PFOA, is classified in HTS 2915.90.18.10 following the parent perfluorooctanoic acid classification rule from Chapter Note 5(C)(3). Used in advanced material synthesis.