Other perhalogenated derivatives
Hypochlorites; commercial calcium hypochlorite; chlorites; hypobromites. > Trichloroethylene > Other perhalogenated derivatives
Duty Rate (from China)
Products classified under Tariff item 2903.78.00
Perfluoro-2-methylpentane
Perfluoro-2-methylpentane is a branched perfluoroalkane with the formula C6F14, where all hydrogen atoms of the acyclic hydrocarbon are replaced by fluorine. As a fully fluorinated acyclic hydrocarbon, it qualifies as a perhalogenated derivative under tariff item 2903.78.00. It is commonly used as an inert immersion cooling fluid in electronics.
Perfluoroadipic Acid
Perfluoroadipic acid is a dicarboxylic acid with the formula HOOC-(CF2)4-COOH, where the acyclic carbon chain is fully fluorinated. It is a perhalogenated derivative of an acyclic hydrocarbon and falls under tariff item 2903.78.00. This compound is used as a monomer in the synthesis of fluoropolymers.
Perfluorobutanoic Acid (PFBA)
Perfluorobutanoic acid (PFBA) is a short-chain perfluorocarboxylic acid with the formula C3F7COOH, where the acyclic hydrocarbon chain is fully fluorinated. It is a perhalogenated derivative of an acyclic hydrocarbon and is classified under tariff item 2903.78.00. PFBA is used in various fluorochemical applications and as a processing aid.
Perfluorobutyric Acid Methyl Ester
Perfluorobutyric acid methyl ester is the methyl ester of perfluorobutanoic acid, with the formula C3F7COOCH3. The acyclic chain remains fully fluorinated, and the ester is classified as a perhalogenated derivative under tariff item 2903.78.00. It is used as a fluorinated building block in organic synthesis.
Perfluorodiglyme
Perfluorodiglyme is a perfluorinated diether with the formula CF3(OCF2CF2)2OCF3, where the acyclic structure contains ether linkages and is fully fluorinated. It is classified under tariff item 2903.78.00 as a perhalogenated derivative of an acyclic hydrocarbon. This compound is used as a specialty heat transfer fluid.
Perfluoroglutaric Acid
Perfluoroglutaric acid is a dicarboxylic acid with the formula HOOC-(CF2)3-COOH, where the acyclic carbon chain is fully fluorinated. It is a perhalogenated derivative of an acyclic hydrocarbon and falls under tariff item 2903.78.00. This compound is used as a specialty monomer for fluorinated polyamides.
Perfluorohexanoic Acid (PFHxA)
Perfluorohexanoic acid (PFHxA) is a six-carbon perfluorocarboxylic acid with the formula C5F11COOH, where the acyclic hydrocarbon chain is fully fluorinated. It is a perhalogenated derivative and is classified under tariff item 2903.78.00. PFHxA is used in fluorochemical manufacturing and as a surfactant.
Perfluoroneopentyl Bromide
Perfluoroneopentyl bromide is a branched perhalogenated alkyl bromide with the formula (CF3)3CBr, where the acyclic hydrocarbon is fully substituted with fluorine and bromine. It is classified under tariff item 2903.78.00 as a perhalogenated derivative of an acyclic hydrocarbon containing two different halogens. This compound is used as a volatile fluorinated building block.
Perfluoro-n-heptanoic Acid Ammonium Salt
Perfluoro-n-heptanoic acid ammonium salt is the ammonium salt of C6F13COOH, where the acyclic chain is fully fluorinated. According to chapter note 5(C)(1), inorganic salts of organic compounds are classified with the parent organic compound, so this salt falls under tariff item 2903.78.00. It is commonly used as a surfactant in commercial applications.
Perfluoro-n-octanesulfonyl Fluoride
Perfluoro-n-octanesulfonyl fluoride is a perhalogenated sulfonyl fluoride with the formula C8F17SO2F, where the acyclic fluorocarbon chain is fully fluorinated. It is classified under tariff item 2903.78.00 as a perhalogenated derivative of an acyclic hydrocarbon, with the sulfur function being secondary to the halogenation. This compound is a key intermediate for PFOS production.
Perfluorooctanoic Acid (PFOA)
Perfluorooctanoic acid (PFOA) is a fully fluorinated carboxylic acid with the formula C7F15COOH, where all hydrogen atoms on the acyclic carbon chain are replaced by fluorine. It is a perhalogenated derivative of an acyclic hydrocarbon and is classified under tariff item 2903.78.00. PFOA is used in various industrial applications, including fluoropolymer production.
Perfluorooctyl Iodide
Perfluorooctyl iodide is a perhalogenated alkyl iodide with the formula C8F17I, where the acyclic hydrocarbon is fully substituted with fluorine and iodine. It meets the criteria for tariff item 2903.78.00 as a perhalogenated derivative of an acyclic hydrocarbon containing two different halogens. This compound is used in fluorochemical telomerization reactions.
Perfluoropentanoic Acid (PFPeA)
Perfluoropentanoic acid (PFPeA) is a medium-chain perfluorinated carboxylic acid with the formula C4F9COOH, where the acyclic hydrocarbon chain is fully fluorinated. It is a perhalogenated derivative and is classified under tariff item 2903.78.00. PFPeA is used as an intermediate in various fluorochemical applications.
Perfluoropropionic Acid (PFPrA)
Perfluoropropionic acid (PFPrA) is the shortest commercial perfluorocarboxylic acid with the formula C2F5COOH, where the acyclic hydrocarbon chain is fully fluorinated. It is a perhalogenated derivative and is classified under tariff item 2903.78.00. This compound is used in specialty fluorochemical synthesis.
Perfluorotributylamine
Perfluorotributylamine is a perhalogenated tertiary amine with the formula (C4F9)3N, where the acyclic fluorocarbon chains are fully fluorinated. It is classified under tariff item 2903.78.00 as a perhalogenated derivative of an acyclic hydrocarbon, with the nitrogen function being secondary to the halogenation. This compound is used as an oxygen-free heat transfer fluid.