Potassium fluorosulfate
Potassium fluorosulfate (CAS: 13455-22-6), with the chemical formula FSO3K and a molecular weight of 138.16 g/mol, is an inorganic salt. It is typically supplied as a powder and chunks. This compound serves as a valuable reagent in chemical synthesis and finds applications in materials science and metal and ceramic science research. Its properties make it a useful component in various chemical processes.
- IUPAC
- Potassium fluorosulfonate

Chemical Synthesis Reagent
Potassium fluorosulfate acts as a precursor or reagent in the synthesis of various chemical compounds. Its reactivity is leveraged in specific organic and inorganic transformations within research and development settings.
Materials Science
This compound can be employed in the development and study of new materials. Its incorporation into material formulations may impart specific properties relevant to advanced material applications.
Metal and Ceramic Science
In the field of metal and ceramic science, potassium fluorosulfate can be utilised in processes related to surface treatment or the creation of novel ceramic materials.
| Molecular weight | 138.16 |
|---|---|
| Linear formula | FSO3K |
| Form | powder and chunks |

Hazard statements
- H314Causes severe skin burns and eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 3260 8 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 31-34 |
| Safety statements (S) | 26-27-36/37/39-45 |
| Supplemental hazards | Contact with acids liberates toxic gas. |
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 Fluorosulfate (CAS 13455-22-6) used for?
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Potassium fluorosulfate (CAS: 13455-22-6) is primarily used as a reagent in chemical synthesis, and in applications related to materials science and metal and ceramic science.
What is the CAS number and chemical formula for Potassium Fluorosulfate?
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The CAS number for Potassium Fluorosulfate is 13455-22-6, and its chemical formula is FSO3K.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Potassium Fluorosulfate. The exact assay and grade are available upon request, and it is not represented as USP/BP/EP.
How should Potassium Fluorosulfate be handled safely?
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Potassium Fluorosulfate is classified as Danger (GHS05) and causes severe skin burns and eye damage (H314). Contact with acids liberates toxic gas. Appropriate personal protective equipment, including eyeshields, gloves, and suitable respiratory protection, must be used. Handle in a well-ventilated area.
How is Potassium Fluorosulfate packed and exported?
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Potassium Fluorosulfate is typically supplied as a powder and chunks. TSS handles packing and export in compliance with all relevant regulations, including UN 3260 8 / PGII classifications.
How can I request a quote or sample of Potassium Fluorosulfate?
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To request a quote or sample of Potassium Fluorosulfate, please contact our sales team through the website or provide your details for a prompt response.
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