Research Grade Lithium PFOS (>99%)
High-purity (>99%) lithium perfluorooctane sulfonate for laboratory research on fluorosurfactants. Strictly classified under HTS 2904.33.00.00 as the pure chemical compound, meeting Chapter 29 note (a) criteria. Not excluded by any chapter limitations.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as certified reference material with matrix
Diagnostic reagents with added matrices classify in 3822.
If personal effects of researcher returning from abroad
Research samples as personal baggage may qualify for duty-free entry.
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Import Tips & Compliance
• Ship in small quantities (<1kg) under research exemption to minimize regulatory hurdles
• Include university/lab end-user certificate to qualify academic import privileges
• Declare CAS 29457-72-5 and molecular formula C8F17LiO3S explicitly
Related Products under HTS 2904.33.00.00
Lithium Perfluorooctane Sulfonate Powder
Pure lithium perfluorooctane sulfonate (Li-PFOS) in powdered form, a fluorinated surfactant used in industrial applications. Classified under HTS 2904.33.00.00 as a sulfonated, halogenated derivative of hydrocarbons, specifically the lithium salt of perfluorooctane sulfonic acid. Meets chapter 29 requirements for separate chemically defined organic compounds.
Technical Grade Lithium PFOS Crystals
Crystalline technical-grade lithium perfluorooctane sulfonate for surfactant manufacturing. Falls under HTS 2904.33.00.00 as a perfluorinated sulfonate salt, explicitly listed in the heading for PFOS salts. Qualifies as a separate chemically defined compound per Chapter 29 scope.
High-Purity Li-PFOS for Electroplating Baths
Ultra-pure lithium perfluorooctane sulfonate designed for electroplating surfactant applications. Precisely classified under 2904.33.00.00 as the lithium salt of perfluorooctane sulfonic acid, a halogenated sulfonated hydrocarbon derivative. Exclusively covered by Chapter 29 for chemically defined organic compounds.
Lithium Perfluorooctane Sulfonate Stabilized Flake
Stabilized flake form of lithium PFOS with minimal anticaking agent for safe transport. Allowed under Chapter 29 note (f) as stabilizer necessary for preservation; principal compound remains HTS 2904.33.00.00. Maintains classification as chemically defined PFOS lithium salt.
PFOS Lithium Salt Aqueous Solution 70%
70% aqueous solution of lithium perfluorooctane sulfonate for firefighting foam production. Classified under HTS 2904.33.00.00 per Chapter note (d) for products of 2904 dissolved in water. Remains chemically defined compound, not a preparation.