Description

Potassium perfluorohexanesulfonate (CAS No. 3871-99-6) is a highly specialized fluorinated organic compound with the molecular formula C6F13KO3S. This potassium salt of perfluorohexanesulfonic acid exhibits exceptional chemical stability, thermal resistance, and surface-active properties due to its fully fluorinated alkyl chain. As a member of the perfluoroalkyl sulfonate family, it finds utility in advanced material science and industrial applications where extreme environmental conditions are encountered. The product is supplied as a high-quality solid with consistent batch-to-batch performance characteristics. Proper handling procedures should be followed as with all fluorinated compounds.

This material is particularly valued for its combination of hydrophobicity and oleophobicity imparted by the perfluorinated tail group, while the sulfonate moiety provides ionic character. Researchers utilize this compound as a surfactant in specialized systems, as an electrolyte component in advanced battery formulations, and as a building block for creating fluorinated polymeric materials. The product undergoes rigorous quality control testing to ensure suitability for demanding technical applications.

Properties

• CAS Number: 3871-99-6
• Complexity: 559
• IUPAC Name: potassium;1,1,2,2,3,3,4,4,5,5,6,6,6-tridecafluorohexane-1-sulfonate
• InChI: InChI=1S/C6HF13O3S.K/c7-1(8,3(11,12)5(15,16)17)2(9,10)4(13,14)6(18,19)23(20,21)22;/h(H,20,21,22);/q;+1/p-1
• InChI Key: RSCGQEBKFSGWJT-UHFFFAOYSA-M
• Exact Mass: 437.8997626
• Molecular Formula: C6F13KO3S
• Molecular Weight: 438.21
• SMILES: C(C(C(C(F)(F)S(=O)(=O)[O-])(F)F)(F)F)(C(C(F)(F)F)(F)F)(F)F.[K+]
• Topological: 65.6
• Monoisotopic Mass: 437.8997626
• Synonyms: 3871-99-6, Potassium perfluorohexanesulfonate, Potassium perfluorohexane-1-sulphonate, 1-Hexanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,6-tridecafluoro-, potassium salt, potassium tridecafluorohexane-1-sulfonate, DTXSID3037709, 4Y7972M53L, DTXCID1017709, 1-Hexanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,6-tridecafluoro-, potassium salt (1:1), 223-393-2, potassium 1,1,2,2,3,3,4,4,5,5,6,6,6-tridecafluorohexane-1-sulfonate, Perfluorohexanesulfonic acid potassium salt, Tridecafluorohexane-1-sulfonic acid potassium salt, Tridecafluorohexanesulfonic Acid Potassium Salt, MFCD00066406, potassium;1,1,2,2,3,3,4,4,5,5,6,6,6-tridecafluorohexane-1-sulfonate, 1-Hexanesulfonic acid,1,1,2,2,3,3,4,4,5,5,6,6,6-tridecafluoro-, potassium salt (1:1), Tridecafluorohexanesulfonic Acid Potassium Salt (Mixture of Isomers), UNII-4Y7972M53L, Potassium perfluorohexanesulfonate; Perfluorohexanesulfonate, potassium salt; Perfluorohexanesulfonate, potassium salt (mixed isomers); PFHxS, potassium salt; PFHxS, potassium salt (mixed isomers), EINECS 223-393-2, PFHS-K, C6F13KO3S, SCHEMBL544675, CHEMBL1902140, MSK9512, Tox21_300396, Potassium perfluorohexane-1-sulfonate, AKOS016010406, 1,1,2,2,3,3,4,4,5,5,6,6,6-Tridecafluorohexane-1-sulfonic acid, potassium salt, NCGC00163913-01, NCGC00163913-02, NCGC00254361-01, AS-74015, POTASSIUM (PERFLUOROHEXYL)SULFONATE, SY066999, 1ST9512-1000M, CAS-3871-99-6, DB-371674, NS00096376, POTASSIUM PERFLUORO-1-HEXANESULFONATE, D82039, Potassium perfluorohexane-1-sulfonate, technical grade, Q27260661, 1-HEXANESULFONIC ACID, TRIDECAFLUORO-, POTASSIUM SALT, Tridecafluorohexane-1-sulfonic acid potassium salt, >=98.0% (T), Perfluorohexanesulfonic acid potassium salt, Potassium tridecafluoro-1-hexanesulfonate, Perfluorohexanesulfonic acid potassium salt; potassium 1,1,2,2,3,3,4,4,5,5,6,6,6-tridecafluorohexane-1-sulfonate; Potassium perfluorohexanesulfonate; Perfluorohexanesulfonic acid potassium salt; Tridecafluorohexane-1-sulfonic acid potassium salt

Potassium perfluorohexanesulfonate serves as a key ingredient in firefighting foams due to its exceptional surface activity and thermal stability. In materials science, it functions as an effective surfactant for creating fluoropolymer dispersions with improved processing characteristics. Electrochemical researchers employ this compound as an electrolyte additive in lithium-ion battery systems to enhance thermal stability and cycling performance. The chemical’s unique properties also make it valuable for specialized coating applications requiring both hydrophobic and oleophobic characteristics.

Safety and Hazards

GHS Hazard Statements

• H301: Toxic if swallowed [Danger Acute toxicity, oral]
• H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]
• H351: Suspected of causing cancer [Warning Carcinogenicity]
• H372: Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure]

Precautionary Statements

• P203, P260, P264, P264+P265, P270, P280, P301+P316, P305+P351+P338, P318, P319, P321, P330, P337+P317, P405, and P501

Hazard Classes and Categories

• Acute toxicity – category 3
• Carcinogenicity – category 2
• Eye irritation – category 2A
• Specific target organ toxicity – category 1

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