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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the dimethyl ester form
Esters like dimethyl terephthalate go to the later heading 2917.37 under Chapter 29 ester classification rules.
If containing radioactive isotopes
Labeled compounds with radioactive elements classify in Chapter 28 per note 2 exclusions.
If used as synthetic pigment intermediate
Derivatives functioning as coloring matter exclude from Chapter 29 and go to Chapter 32.
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Import Tips & Compliance
• Provide assay confirming sodium content and acid equivalence; label as 'not for food/pharma use' to avoid stricter regs; check for stabilizer additions that could trigger Chapter 29 note (f) review
Related Products 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.
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.