Description

Potassium perfluorohexanesulfonate (CAS No. 3871-99-6) is a highly fluorinated organic compound with the molecular formula C6F13KO3S. This potassium salt of perfluorohexanesulfonic acid exhibits exceptional chemical and thermal stability due to its strong carbon-fluorine bonds, making it an invaluable reagent in advanced material science and specialty chemical applications. The compound’s unique perfluorinated alkyl chain provides excellent hydrophobic and oleophobic properties, while the sulfonate group ensures good solubility in polar solvents.

This high-purity material is synthesized under stringent quality control measures to ensure batch-to-batch consistency for research and industrial applications. It is typically supplied as a white crystalline powder with excellent shelf stability when stored under recommended conditions. As a member of the perfluorinated alkyl substances (PFAS) family, it finds utility in various high-performance applications where surface activity and chemical resistance are required.

Researchers and formulation scientists value this compound for its consistent performance characteristics, including its surfactant properties and chemical inertness. Proper handling procedures should be followed, including the use of appropriate personal protective equipment, as with all fluorinated compounds.

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 intermediate in the synthesis of advanced fluorinated surfactants and surface modifiers. In materials science, it is utilized to create hydrophobic coatings with exceptional chemical resistance for electronic components and specialty textiles. The compound finds application as a wetting agent and emulsifier in fluoropolymer production processes, where its thermal stability is particularly advantageous.

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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