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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If containing quaternary ammonium groups
Derivatives with nitrogen in different configurations (not primary polyamines) classify under 2924; straight-chain hexamethylenediamine salt remains in 2921.
If blended with anti-foaming agents exceeding note limits
Additions beyond Chapter note (g) allowances (anti-dusting, stabilizers) push mixtures to 3824 chemical preparations.
If fully converted to nylon filament
Once polymerized and spun into nylon 6,6 yarn, products move to Chapter 54 synthetic filament classification.
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Import Tips & Compliance
• Specify flake size distribution (typically 2-5mm) in commercial invoice; validate pH (7.7-8.2 for neutral salt) via titration method; use desiccant packaging for ocean freight
Related Products under HTS 2921.22.05.00
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.
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.
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.