Hexamethylenediamine Adipate (Nylon Salt)
Hexamethylenediamine adipate, commonly known as Nylon salt, is the salt formed from hexamethylenediamine and adipic acid, used as the direct precursor for producing Nylon 6,6 polymer. It falls under HTS 2921.22.0500 as a derivative salt of acyclic polyamine hexamethylenediamine. This chemically defined organic compound is supplied in pure form for industrial polymerization processes.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If classified by the carboxylic acid component
Adipic acid salts could alternatively fall under saturated acyclic monocarboxylic acid headings, but Chapter 29 note prioritizes the amine-function compound (last in numerical order).
If partially polymerized into low MW polyamide
If the product has advanced beyond salt stage to oligomer or low molecular weight polyamide, it becomes a polymer under Chapter 39 rather than a Chapter 29 chemical intermediate.
If supplied as aqueous solution with stabilizers
Solutions of Chapter 29 products in water with stabilizers for transport fall under prepared binders per Chapter notes (e), but pure solid nylon salt remains in 2921.
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Import Tips & Compliance
• Verify purity certificate (typically >99%) and provide chemical analysis to confirm identity as nylon salt; ensure proper hazardous material declaration if packaged in quantities exceeding transport limits; avoid misclassification by confirming it's not polymerized nylon resin
Related Products under HTS 2921.22.05.00
Nylon 6,6 Polymerization Salt
Industrial-grade hexamethylenediamine adipate used exclusively in the production of Nylon 6,6 via melt polymerization. This specific salt matches HTS 2921.22.0500 as it's the defined reaction product of hexamethylenediamine (acyclic polyamine) and adipic acid. Typically supplied as white crystalline powder with controlled moisture content.
AH Salt for Nylon Production
AH Salt (Adipic acid-Hexamethylenediamine salt) is the technical name for hexamethylenediamine adipate under HTS 2921.22.0500, serving as the monomer salt for high-performance Nylon 6,6 resins. This pure chemical intermediate enables direct salt melt polymerization without water removal steps. Used by major nylon producers worldwide.
Industrial Nylon Salt Flakes
Flaked form of hexamethylenediamine adipate (Nylon salt) optimized for continuous polymerization reactors, classified under HTS 2921.22.0500. The flake physical form facilitates uniform melting and reaction control in nylon production. Meets specifications for fiber-grade and engineering plastic-grade nylon 6,6.
Polymer-Grade Hexamethylenediamine Adipate
High-purity (>99.5%) hexamethylenediamine adipate meeting polymer-grade specifications for premium Nylon 6,6 used in automotive and aerospace applications. Precisely matches HTS 2921.22.0500 as the named acyclic polyamine salt derivative. Supplied with full analytical package including GC, HPLC, and Karl Fischer water content.