|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)|
|GHS signal word||Danger|
|P280, P305+351+338, P310|
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 half-life of a little over one month in people, much shorter 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
- Sigma-Aldrich Co., Nonafluorobutane-1-sulfonic acid. Retrieved on 15 January 2018.
- 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. doi:10.1021/es062612a. PMID 16433328.
- Betts KS (May 2007). "Perfluoroalkyl acids: what is the evidence telling us?". Environ. Health Perspect. 115 (5): A250–6. doi:10.1289/ehp.115-a250. PMC 1867999. PMID 17520044.