HS Code for Ammonium PFOS

Ammonium perfluorooctane sulphonate (PFOS) is precisely classified under Harmonized System (HS) code 290432. This classification is located within Chapter 29 of the HS nomenclature, which is exclusively dedicated to organic chemicals. The specific description for 290432 is "Derivatives of hydrocarbons; ammonium perfluorooctane sulphonate, whether or not halogenated." This detailed description accurately identifies ammonium PFOS by acknowledging its fundamental nature as a derivative of hydrocarbons and specifically naming the compound. The explicit inclusion of "whether or not halogenated" further confirms its appropriate classification, as PFOS inherently contains fluorine, a halogen element. This meticulous categorization is essential for ensuring accurate global trade practices and regulatory control, particularly given the environmental and health considerations associated with per- and polyfluoroalkyl substances (PFAS).

Products Included

• Ammonium perfluorooctane sulphonate
• APFOS
• Perfluorooctane sulfonic acid ammonium salt
• Certain perfluorinated surfactants containing the ammonium PFOS moiety

Common Misclassification

A common source of misclassification for ammonium PFOS could involve HS code 290431, which is designated for "Perfluorooctane sulphonic acid." While chemically very similar, 290431 refers specifically to the acid form, whereas 290432 is reserved for the ammonium salt. It is crucial to differentiate between the acid and its salt for accurate classification. Another potential misclassification might occur with broader categories for other sulphonated derivatives of hydrocarbons, such as 290490. However, 290432 stands as the most specific and accurate code for ammonium perfluorooctane sulphonate, ensuring proper identification and compliance with international chemical regulations and restrictions.

FAQ

What is the HS code for Ammonium PFOS?

The HS code for ammonium PFOS is 290432. This code specifically covers "Derivatives of hydrocarbons; ammonium perfluorooctane sulphonate, whether or not halogenated," precisely identifying this organic chemical.

Why is the "whether or not halogenated" clause important for ammonium PFOS classification?

The "whether or not halogenated" clause is important because ammonium PFOS contains fluorine atoms, which are halogens. This clause ensures that the compound is correctly classified under 290432, regardless of the presence of these halogen atoms, confirming its identity as a perfluorinated derivative.