Potassium heptadecafluoro-1octanesulfonate CAS#2795-39-3
Exceptional Chemical Stability: Potassium perfluorooctanesulfonate (PFOS-K) is highly stable, making it reliable for demanding industrial applications.
Effective Surface-Active Properties: It functions as a surfactant with excellent wetting, foaming, and firefighting foam-enhancing capabilities.
Hydrophobic and Oleophobic Characteristics: Its fully fluorinated 8-carbon chain and sulfonate group provide both water-repellent and oil-repellent properties.
Key Industrial Applications: PFOS-K is widely used in chromium mist suppression during electroplating and as a firefighting foam additive, enhancing safety and efficiency in industrial processes.
Product Description of Potassium Heptadecafluoro-1-Octanesulfonate CAS#2795-39-3
Potassium perfluorooctanesulfonate (PFOS-K, CAS 2795-39-3) is an organofluorine surfactant valued in industrial applications for its outstanding chemical stability and surface-active properties. As the potassium salt of perfluorooctanesulfonic acid (PFOS), it plays a critical role in suppressing chromium mist during electroplating by forming stable foam layers that reduce toxic acid mist emissions. Additionally, it serves as a wetting agent and a fluoroprotein-type firefighting foam additive. Its molecular structure, featuring a fully fluorinated 8-carbon chain and a sulfonate group, provides both hydrophobic and oleophobic properties. Due to its environmental persistence and potential for bioaccumulation, PFOS-K is strictly regulated under the Stockholm Convention on Persistent Organic Pollutants, with its use limited to specific industrial applications where alternatives are not available. Safe handling requires sealed containers (typically 25 kg drums) and avoidance of high-temperature decomposition above 300°C to prevent hazardous byproducts.
Parameters
| Melting point | 277-280 °C(lit.) |
| density | 1.1 |
| solubility | Methanol, Water (Slightly, Heated, Sonicated) |
| form | Powder |
| color | white |
| BRN | 3864579 |
| Stability: | Hygroscopic |
| InChI | 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 |
| InChIKey | WFRUBUQWJYMMRQ-UHFFFAOYSA-M |
| SMILES | C(F)(F)(C(F)(F)C(F)(F)C(F)(F)S([O-])(=O)=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F.[K+] |
| CAS DataBase Reference | 2795-39-3(CAS DataBase Reference) |
| EPA Substance Registry System | Potassium perfluorooctanesulfonate (2795-39-3) |
| Hazard Codes | Xn,N,C,Xi,T |
| Risk Statements | 20/22-36/37/38-51/53-22-57-64-48/25-40-61 |
| Safety Statements | 26-61-45-53 |
| RIDADR | UN 2811 6.1/PG 3 |
| WGK Germany | 3 |
| RTECS | RG9701850 |
| Hazard Note | Corrosive |
| TSCA | Yes |
| HazardClass | 6.1 |
| HazardClass | IRRITANT |
| HS Code | 29049090 |
Product Application of Potassium Heptadecafluoro-1-Octanesulfonate CAS#2795-39-3
Potassium perfluorooctanesulfonate (PFOS-K, CAS 2795-39-3) is an organofluorine surfactant widely used in industrial applications due to its outstanding chemical stability and surface-active properties. As the potassium salt of perfluorooctanesulfonic acid (PFOS), it acts as a key component for chromium mist suppression in electroplating, forming stable foam layers that reduce the emission of toxic acid mists. At the same time, it serves as a wetting agent and an additive for fluoroprotein-type firefighting foams. Its molecular structure, which includes a fully fluorinated 8-carbon chain and a sulfonate group, provides both hydrophobic and oleophobic properties.
