Other perhalogenated derivatives
Halogenated derivatives of hydrocarbons: > Halogenated derivatives of acyclic hydrocarbons containing two or more different halogens: > Other perhalogenated derivatives
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 2903.78.00.00
Perfluorooctanoic Acid (PFOA)
PFOA is a fully fluorinated carboxylic acid, a perhalogenated derivative of an acyclic hydrocarbon with all hydrogens replaced by fluorine atoms. It falls under HTS 2903.78.00.00 as an acyclic perhalogenated compound containing two or more different halogens (fluorine and implied structure). Commonly used in industrial applications but now heavily regulated due to environmental concerns.
Perfluorobutanoic Acid (PFBA)
PFBA is a short-chain perfluorocarboxylic acid with the formula C3F7COOH, fully fluorinated acyclic hydrocarbon derivative. Classified in 2903.78.00.00 as a perhalogenated compound meeting chapter 29 criteria for chemically defined organic compounds. Used in surfactant applications and chemical synthesis.
Perfluoropentanoic Acid (PFPeA)
PFPeA (C4F9COOH) represents medium-chain perfluorinated carboxylic acids, fully halogenated acyclic derivatives. Falls under 2903.78.00.00 per chapter notes for halogenated hydrocarbons with multiple halogens. Intermediate in fluoropolymer production.
Perfluorohexanoic Acid (PFHxA)
PFHxA is a six-carbon perfluorocarboxylic acid used in fluorochemical manufacturing. As a perhalogenated acyclic hydrocarbon derivative containing only fluorine, it precisely matches 2903.78.00.00 criteria. Subject to increasing environmental scrutiny.
Perfluoropropionic Acid (PFPrA)
Shortest commercial perfluorocarboxylic acid (C2F5COOH), fully fluorinated with no hydrogen on carbon chain. 2903.78.00.00 classification reflects perhalogenated acyclic hydrocarbon derivative status. Used in specialty fluorochemical synthesis.
Perfluorobutyric Acid Methyl Ester
Methyl ester of perfluorobutanoic acid, maintaining full perhalogenation on acyclic chain. Classified 2903.78.00.00 as ester remains with parent perhalogenated hydrocarbon per chapter classification rules. Used as fluorinated solvent intermediate.
Perfluoro-n-heptanoic Acid Ammonium Salt
Ammonium salt of C6F13COOH, fully perhalogenated carboxylic acid derivative. 2903.78.00.00 applies per chapter note 3(C)(1) classifying inorganic salts with parent organic compound. Common surfactant form in commercial applications.
Perfluoroadipic Acid
HOOC-(CF2)4-COOH, dicarboxylic perhalogenated acyclic hydrocarbon derivative. Falls under 2903.78.00.00 as fully fluorinated compound meeting all chapter note criteria. Used in fluoropolymer monomer synthesis.
Perfluoro-n-octanesulfonyl Fluoride
C8F17SO2F, perhalogenated sulfonyl fluoride with acyclic fluorocarbon chain. 2903.78.00.00 classification as perhalogenated derivative; sulfur function secondary to halogenation. Key intermediate for PFOS production.
Perfluoroglutaric Acid
HOOC-(CF2)3-COOH, three-methylene perfluorodicarboxylic acid. Fully perhalogenated acyclic hydrocarbon derivative classifiable in 2903.78.00.00. Specialty monomer for fluorinated polyamides.
Perfluorooctyl Iodide
C8F17I, perhalogenated alkyl iodide with mixed fluorine/iodine halogenation. Meets 2903.78.00.00 criteria for acyclic hydrocarbons with two or more different halogens, fully substituted. Used in fluorochemical telomerization.
Perfluoroneopentyl Bromide
(CF3)3CBr, branched perhalogenated alkyl bromide. Acyclic hydrocarbon fully substituted with fluorine and bromine, classifiable 2903.78.00.00. Highly volatile fluorinated building block.
Perfluorodiglyme
CF3(OCF2CF2)2OCF3, perfluorinated diether technically acyclic despite ether linkages. 2903.78.00.00 as perhalogenated acyclic hydrocarbon derivative per chapter scope. Specialty heat transfer fluid.
Perfluoro-2-methylpentane
Branched perfluoroalkane C6F14, fully fluorinated acyclic hydrocarbon. While single-halogen, fits 2903.78.00.00 as perhalogenated derivative. Inert immersion cooling fluid.
Perfluorotributylamine
(C4F9)3N, perhalogenated tertiary amine with acyclic fluorocarbon chains. 2903.78.00.00 as perhalogenated hydrocarbon derivative; nitrogen secondary function. Oxygen-free heat transfer fluid.