Terephthalic acid and its salts
Aldehydes, whether or not with other oxygen function; cyclic polymers of aldehydes; paraformaldehyde. > Aromatic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives: > Terephthalic acid and its salts > Terephthalic acid and its salts
Duty Rate (from China)
Products classified under Tariff item 2917.36.00.00
Ammonium Terephthalate
Ammonium terephthalate is the ammonium salt of terephthalic acid, a chemically defined organic compound. It is used as a blowing agent in plastics and as a chemical intermediate. Under Chapter 29, inorganic salts of organic acids are classified with the parent organic compound, making this salt classifiable under the tariff item for terephthalic acid and its salts.
2917.36.00Calcium Terephthalate Salt
Calcium terephthalate is a divalent salt of terephthalic acid, used in flame-retardant plastics and as a catalyst. As an inorganic salt of an organic acid, it is classified with the parent acid under Chapter 29. The tariff item explicitly covers terephthalic acid and its salts, including calcium terephthalate.
2917.36.00Disodium Terephthalate Salt
Disodium terephthalate is the sodium salt of terephthalic acid, used in specialty polymers and as a chemical intermediate. It is a separate chemically defined compound and an inorganic salt of an organic acid. Under Chapter 29, it is classified with the parent acid, terephthalic acid, in this tariff item.
2917.36.00High-Purity Terephthalic Acid (HPTA)
High-purity terephthalic acid (HPTA) is a separate chemically defined organic compound with purity above 99.99%, used for pharmaceutical-grade PET and specialty films. It is an aromatic polycarboxylic acid that precisely matches the description of this tariff item. Chapter 29 note 1(a) includes separate chemically defined organic compounds whether or not containing impurities.
2917.36.00Industrial Grade Terephthalic Acid
Industrial grade terephthalic acid, typically 99.5% purity, is a separate chemically defined compound used as feedstock for polyester fiber production. It is an aromatic polycarboxylic acid that falls under this tariff item. Chapter 29 note 1(a) covers separate chemically defined organic compounds, and impurities do not affect classification.
2917.36.00Monopotassium Terephthalate
Monopotassium terephthalate is a partially neutralized salt of terephthalic acid, used in niche chemical syntheses and polymer modifiers. As an inorganic salt of an organic acid, it is classified with the parent acid under Chapter 29. The tariff item explicitly includes salts of terephthalic acid.
2917.36.00Purified Terephthalic Acid (PTA)
Purified terephthalic acid (PTA) is a separate chemically defined organic compound used primarily as a raw material for producing polyethylene terephthalate (PET) for bottles and fibers. It is an aromatic polycarboxylic acid that falls under this tariff item. Chapter 29 note 1(a) covers separate chemically defined organic compounds.
2917.36.00Terephthalic Acid Aqueous Solution
Terephthalic acid aqueous solution is a dilute solution of terephthalic acid in water, used for lab or small-scale polymer applications. Chapter 29 note 1(d) covers products of the heading dissolved in water. The solution is classifiable under this tariff item as long as it is a product of terephthalic acid dissolved in water.
2917.36.00Terephthalic Acid Flakes
Terephthalic acid flakes are terephthalic acid processed into a flake form for easier handling in polyester plants. The physical form does not alter the chemical identity of the product. It remains a separate chemically defined organic compound classifiable under this tariff item.
2917.36.00Terephthalic Acid with Stabilizer
Terephthalic acid with stabilizer is terephthalic acid containing a minimal stabilizer added for transport stability, used in PET resin manufacturing. Chapter 29 note 1(f) allows products with an added stabilizer necessary for preservation or transport. The addition does not render the product particularly suitable for a specific use.