Terephthalic acid and its salts
Polycarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives: > Aromatic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives: > Terephthalic acid and its salts
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
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)
Products classified under HTS 2917.36.00.00
Purified Terephthalic Acid (PTA)
Purified terephthalic acid (PTA) is a chemically defined organic compound used primarily as a raw material in producing polyethylene terephthalate (PET) for bottles and fibers. It falls under HTS 2917.36.00.00 as it is specifically terephthalic acid, an aromatic polycarboxylic acid, meeting Chapter 29 note (a) for separate chemically defined compounds.
Disodium Terephthalate Salt
Disodium terephthalate is the sodium salt of terephthalic acid, used in specialty polymers and as a chemical intermediate. It is classified under HTS 2917.36.00.00 as explicitly including salts of terephthalic acid per the heading description and Chapter 29 note on inorganic salts.
Monopotassium Terephthalate
Monopotassium terephthalate is a partially neutralized salt of terephthalic acid, employed in niche chemical syntheses and polymer modifiers. Covered by HTS 2917.36.00.00 as a salt of the specified aromatic polycarboxylic acid, aligning with Chapter 29 definitions.
Industrial Grade Terephthalic Acid
Industrial grade terephthalic acid (typically 99.5% purity) serves as feedstock for polyester fiber production. It qualifies under HTS 2917.36.00.00 as a separate chemically defined compound per Chapter 29 note (a), despite minor impurities.
Terephthalic Acid with Stabilizer
Terephthalic acid containing a minimal stabilizer for transport stability, used in PET resin manufacturing. Allowed under HTS 2917.36.00.00 per Chapter 29 note (f) as the addition is necessary for preservation without changing general use.
Terephthalic Acid Aqueous Solution
A dilute aqueous solution of terephthalic acid for lab or small-scale polymer applications. Classifiable under HTS 2917.36.00.00 via Chapter 29 note (d) as products of the heading dissolved in water.
Calcium Terephthalate Salt
Calcium terephthalate, a divalent salt used in flame-retardant plastics and catalysts. Falls under HTS 2917.36.00.00 as a salt of terephthalic acid, with classification following the organic acid parent per Chapter notes.
High-Purity Terephthalic Acid (HPTA)
High-purity terephthalic acid (>99.99%) for pharmaceutical-grade PET and specialty films. Precisely matches HTS 2917.36.00.00 as a chemically defined aromatic polycarboxylic acid without exclusions.
Terephthalic Acid Flakes
Terephthalic acid processed into stable flakes for easier handling in polyester plants. Remains under HTS 2917.36.00.00 as the physical form doesn't alter its chemical identity as defined in Chapter 29.
Ammonium Terephthalate
Ammonium terephthalate salt used as a blowing agent in plastics and intermediate. Classified in HTS 2917.36.00.00 following Chapter 29 note (C)(1) for salts of organic acids.