Potassium trifluoromethanesulfonate
Potassium trifluoromethanesulfonate (CAS: 2926-27-4), with the chemical formula CF3SO3K and a molecular weight of 188.17 g/mol, is a sulfur compound. This salt finds utility in specialised research applications, including the investigation of mixed alkali effects in poly(ethylene oxide) electrolytes and the electrochemical behaviour of glassy carbon in super-acidic media. It serves as a valuable building block in chemical synthesis.
- IUPAC
- Potassium triflate,Trifluoromethanesulfonic acid potassium salt

Electrolyte Studies
Potassium trifluoromethanesulfonate is employed in research concerning mixed alkali effects within poly(ethylene oxide) electrolytes, contributing to the understanding of ion transport phenomena in polymeric systems.
Electrochemical Investigations
It is utilised in characterising the electrochemical behaviour of glassy carbon electrodes when exposed to super-acidic media, offering insights into electrode reactions in extreme chemical environments.
Organic Synthesis Building Block
As a reactive intermediate, this compound serves as a valuable building block in various organic synthesis pathways, enabling the construction of complex molecules.
| Molecular weight | 188.17 |
|---|---|
| Linear formula | CF3SO3K |
| Assay | 98% |
| Application | Used in studies of mixed alkali effects and short range interactions in poly(ethylene oxide) electrolytes,1 and characteristics of the electrochemical behavior of glassy carbon in super-acid media.2 |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Potassium trifluoromethanesulfonate used for?
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Potassium trifluoromethanesulfonate (CAS: 2926-27-4) is used in studies of mixed alkali effects in poly(ethylene oxide) electrolytes and in characterising the electrochemical behaviour of glassy carbon in super-acid media. It also functions as a building block in chemical synthesis.
What are the CAS number and chemical formula for Potassium trifluoromethanesulfonate?
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The CAS number is 2926-27-4 and the chemical formula is CF3SO3K.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Potassium trifluoromethanesulfonate with an assay of 98%. This product is not represented as USP, BP, EP, or any pharmacopoeia grade.
How should Potassium trifluoromethanesulfonate be handled safely?
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Potassium trifluoromethanesulfonate is classified as a Warning substance with hazards H315 (causes skin irritation), H319 (causes serious eye irritation), and H335 (may cause respiratory irritation). Handle with appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves, in a well-ventilated area. Follow precautionary statements P261 (avoid breathing dust) and P305 + P351 + P338 (if in eyes: rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing).
Does Tech Serve Solutions export this chemical?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including Potassium trifluoromethanesulfonate.
How can I request a sample or quote for Potassium trifluoromethanesulfonate?
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To request a sample or a quotation for Potassium trifluoromethanesulfonate, please contact our sales department through the website or via direct inquiry, providing your specific requirements.
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