Hexamethylenediamine Sulfate
Hexamethylenediamine Sulfate is the sulfate salt of hexamethylenediamine, used as a corrosion inhibitor intermediate and in water treatment chemicals. It is classified under tariff item 2921.22.00 as a salt of the acyclic polyamine hexamethylenediamine. The product is typically supplied as a 50-70% aqueous solution, which is covered by Chapter 29 notes for products dissolved in water.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the product is a salt of another acyclic polyamine
Other acyclic polyamine salts fall under this subheading.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Specify the concentration of the aqueous solution on the commercial invoice, as it affects the classification
• Ensure the solution is a normal method of putting up the product for safety or transport, not for specific use
• Verify that the product is not mixed with other chemicals that could change its classification
Related Products under Tariff item 2921.22.00
AH Salt for Nylon Production
AH Salt, also known as hexamethylenediamine adipate, is the salt formed from hexamethylenediamine and adipic acid. It is the monomer salt used in the production of Nylon 6,6 resins. This product falls under tariff item 2921.22.00 as it is a salt of hexamethylenediamine.
Di(hexamethylene)triamine Dihydrochloride
Di(hexamethylene)triamine Dihydrochloride is a derivative polyamine salt from hexamethylenediamine used in fuel additives and chelating agents. This product is classified under tariff item 2921.22.00 as a salt of hexamethylenediamine.
Hexamethylenediamine Adipate (Nylon Salt)
Hexamethylenediamine adipate, or Nylon salt, is a 1:1 salt of hexamethylenediamine and adipic acid. It serves as the direct precursor for Nylon 6,6 polymer production. This salt is classified under tariff item 2921.22.00 as a salt of hexamethylenediamine.
Hexamethylenediamine Adipate Salt
Hexamethylenediamine Adipate Salt is a 1:1 salt formed from hexamethylenediamine and adipic acid. It is used as a key intermediate in Nylon 6,6 production. This compound is classified under tariff item 2921.22.00 as a salt of hexamethylenediamine.
Hexamethylenediamine Adipic Acid Monosalt
Hexamethylenediamine Adipic Acid Monosalt is a partial neutralization product with a 1:0.5 molar ratio of hexamethylenediamine to adipic acid. It is used in specialty polymer modifiers. This product is classified under tariff item 2921.22.00 as a salt of hexamethylenediamine.
Hexamethylenediamine Citrate
Hexamethylenediamine Citrate is a citric acid salt used in pharmaceutical buffering and nutritional supplements. This product is classified under tariff item 2921.22.00 as a salt of hexamethylenediamine.