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Sigma-Aldrich

Heptadecafluorooctanesulfonic acid potassium salt

≥98.0% (T)

Synonym(s):

Perfluorooctanesulfonic acid potassium salt, Potassium heptadecafluoro-1-octanesulfonate

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About This Item

Linear Formula:
CF3(CF2)7SO3K
CAS Number:
2795-39-3
Molecular Weight:
538.22
Beilstein:
3864579
EC Number:
220-527-1
MDL number:
MFCD00066407
UNSPSC Code:
12352100
PubChem Substance ID:
57652691
NACRES:
NA.22

Assay

≥98.0% (T)

form

crystals

mp

277-280 °C (lit.)

SMILES string

[K+].[O-]S(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F

InChI

1S/C8HF17O3S.K/c9-1(10,3(13,14)5(17,18)7(21,22)23)2(11,12)4(15,16)6(19,20)8(24,25)29(26,27)28;/h(H,26,27,28);/q;+1/p-1

InChI key

WFRUBUQWJYMMRQ-UHFFFAOYSA-M

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General description

Heptadecafluorooctanesulfonic acid potassium salt is commonly utilized as a surfactant or wetting agent in various industrial processes.

Application

Heptadecafluorooctanesulfonic acid potassium salt can be used as:
  • A fluorinated surfactant for poly(vinylpyrrolidone)/aminopropyl-functionalized nanoclay films to achieve hydrophobicity and oleophobicity.
  • A surfactant in the preparation of core-shell polymers for lithium-ion batteries.
  • A reactant to synthesize dicationic ionic liquids.

Signal Word

Danger

Hazard Classifications

Acute Tox. 3 Oral - Acute Tox. 4 Inhalation - Aquatic Chronic 2 - Carc. 2 - Lact. - Repr. 1B - STOT RE 1

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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Fabrication of a microcapsule extinguishing agent with a core-shell structure for lithium-ion battery fire safety
Zhang W, et al.
Materials Advances, 14, 4634-4642 (2021)
Synthesis of thermally stable geminal dicationic ionic liquids and related ionic compounds: an examination of physicochemical properties by structural modification
Patil R, et al.
Chemistry of Materials, 28, 4315-4323 (2016)
Vera Kovacevic et al.
Ecotoxicology and environmental safety, 164, 189-200 (2018-08-18)
Previous studies have shown that contaminant toxicity to target organisms is altered by the presence of dissolved organic matter (DOM). Contaminants can bind to DOM and this may alter the bioavailability and subsequent toxicity of the contaminants. However, molecular-level techniques
Sarah A Abercrombie et al.
Ecotoxicology and environmental safety, 178, 137-145 (2019-04-20)
Poly- and perfluoroalkyl substances (PFAS) are ubiquitous contaminants that can bioaccumulate in aquatic taxa. Amphibians are particularly vulnerable to contaminants and sensitive to endocrine disruptors during their aquatic larval stage. However, few studies have explored PFAS uptake rates in amphibians
Shuyu Liu et al.
Ecotoxicology and environmental safety, 169, 564-572 (2018-11-27)
PFOS and PFOA are two of the most abundant perfluorinated compounds (PFCs) in the environment. Previous studies have reported they have a long half-life (up to five years) once they enter into the human body. Moreover, they can potentially promote
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