HS Code for Lithium PFOS

Lithium perfluorooctane sulphonate, commonly referred to as Lithium PFOS, is classified under HS code 2904.33. This code is located within Chapter 29, which covers organic chemicals. Heading 2904 is designated for sulfonated, nitrated, or nitrosated derivatives of hydrocarbons, whether or not halogenated. In recent years, the Harmonized System has been updated to provide specific codes for substances controlled under international environmental agreements like the Stockholm Convention on Persistent Organic Pollutants. Subheading 2904.33 was specifically created to monitor the trade of this particular salt of perfluorooctane sulfonic acid. The classification is determined by the chemical structure of the compound, which consists of a perfluorinated hydrocarbon chain attached to a sulphonate group with a lithium cation. This substance has historically been used in specialized industrial applications, such as in the manufacture of semiconductors or as an antistatic agent in photography. Because it is a chemically defined organic compound, it must be classified in Chapter 29 rather than as a chemical preparation in Chapter 38, unless it is mixed with other substances for a specific functional use. The precision of this code ensures that customs authorities can track the movement of this regulated chemical.

Products Included

• Lithium perfluorooctane sulphonate (pure)
• Lithium salt of PFOS
• Perfluorooctane sulphonic acid, lithium salt

Common Misclassification

Lithium PFOS is often confused with the parent acid, perfluorooctane sulphonic acid (PFOS), which is classified under HS code 2904.31. It may also be confused with other salts of PFOS, such as the potassium salt (2904.32) or the ammonium salt (2904.34). If the chemical is part of a prepared mixture for industrial use, it might be misclassified under 3824.99.

FAQ

What is the HS code for Lithium PFOS?

The specific HS code for lithium perfluorooctane sulphonate is 2904.33.

Why does Lithium PFOS have its own HS code?

It has a dedicated code to facilitate the monitoring and control of the substance under the Stockholm Convention on Persistent Organic Pollutants.