|Preferred IUPAC name
|Systematic IUPAC name
3D model (JSmol)
|UN number||3094, 3265|
|Molar mass||300.10 g/mol|
|Melting point||76 to 84 °C (169 to 183 °F; 349 to 357 K) |
|Boiling point||211 °C (412 °F; 484 K)|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|what is ?)(|
Perfluorobutanesulfonic acid (PFBS) is a chemical compound with a four carbon fluorocarbon chain and a sulfonic acid functional group. As an anion it functions as a stable fluorosurfactant because of the strength of carbon–fluorine bonds.
Since June 2003, 3M has used PFBS as a replacement for the persistent, toxic, and bioaccumulative perfluorooctanesulfonic acid (PFOS) in its Scotchgard stain repellents.3M markets surfactant with PFBS in two fluorosurfactants.
PFBS has a much shorter half-life of a little over one month in people than PFOS with 5.4 years. PFBS is persistent in the environment. Studies have not yet been specifically conducted to determine safety in humans.
- "Nonafluorobutanesulphonic acid - 59933-66-3 Catalog of Chemical Suppliers". Retrieved 16 January 2009.
- Perfluorobutanesulfonic acid in the ChemIDplus database
- "Safety Data Sheet-Nonafluorobutanesulphonic acid" (PDF). Retrieved 16 January 2009.
- Ullah, Aziz (October 2006). "The Fluorochemical Dilemma: What the PFOS/PFOA fuss is all about" (PDF). Cleaning & Restoration. Retrieved 16 January 2009.
- Renner R (January 2006). "The long and the short of perfluorinated replacements". Environ. Sci. Technol. 40 (1): 12–3. PMID 16433328. doi:10.1021/es062612a.
- Betts KS (May 2007). "Perfluoroalkyl acids: what is the evidence telling us?". Environ. Health Perspect. 115 (5): A250–6. PMC . PMID 17520044. doi:10.1289/ehp.115-a250.