Perfluorobutanesulfonic acid

Structural formula
General
Surname	Perfluorobutanesulfonic acid
other names	1-perfluorobutanesulfonic acid; Nonafluoro-1-butanesulfonic acid;
Molecular formula	C 4 HF 9 O 3 S
External identifiers / databases
EC number	206-793-1
ECHA InfoCard	100.006.176
PubChem	67815
Wikidata	Q410426
properties
Molar mass	300.10 g mol −1
boiling point	211 ° C
safety instructions
H and P phrases	H: 302-314
	P: 280-305 + 351 + 338-310
Authorization procedure under REACH	Of particular concern: there are likely to be serious effects on human health and the environment
Toxicological data	430 mg kg −1 ( LD 50 , rat , oral )
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Perfluorobutanesulfonic acid (PFBS) is a chemical compound that belongs to the perfluorinated and polyfluorinated alkyl compounds (PFAS).

Occurrence

PFBS is a man-made connection and does not occur naturally.

properties

The specialty of PFBS is that the perfluorinated group is hydrophobic and lipophobic at the same time , whereas the polar group is hydrophilic . The perfluorinated group is therefore both water and dirt repellent.

use

PFBS is a substitute for PFOS . After 3M stopped manufacturing PFOS-based products in 2002, they were reformulated to use the shorter-chain PFBS because it has a shorter half-life in humans and is less toxic.

Environmental relevance

PFBS is readily soluble in water and completely dissociates in an aqueous environment. It is only slightly adsorbed in the soil and sediments, so it remains in the water. PFBS is persistent there because the compound is neither hydrolyzed, photolyzed, nor biodegraded. The toxicity to birds, fish, invertebrates and microorganisms has proven to be low.

literature

NICNAS: Existing Chemical Hazard Report: Potassium perfluorobutane sulfonate (PDF file; 1.85 MB) , 2005

Individual evidence

↑ ^a ^b Entry on perfluorobutanesulfonic acid in the ChemIDplus database of the United States National Library of Medicine (NLM), accessed on January 16, 2020.
↑ ^a ^b Data sheet Nonafluorobutane-1-sulfonic acid from Sigma-Aldrich , accessed on April 18, 2011 ( PDF ).
↑ Entry in the SVHC list of the European Chemicals Agency , accessed on January 16, 2020.
↑ Kellyn S. Betts: Perfluoroalkyl acids: what is the evidence telling us? In: Environ. Health Perspect. , 115 (5), 2007, PMID 17520044 , PMC 1867999 (free full text).
↑ 3M: What is 3M Doing? ( Memento of December 10, 2014 in the Internet Archive ) , accessed on January 19, 2009.
↑ NICNAS: Existing Chemical Hazard Report: Potassium perfluorobutane sulfonate (PDF file; 1.85 MB) , 2005.

[ChemID-1] Entry on perfluorobutanesulfonic acid in the ChemIDplus database of the United States National Library of Medicine (NLM), accessed on January 16, 2020.

[Sigma-2] Data sheet Nonafluorobutane-1-sulfonic acid from Sigma-Aldrich , accessed on April 18, 2011 ( PDF ).

[SVHC-3] Entry in the SVHC list of the European Chemicals Agency , accessed on January 16, 2020.

[4] Kellyn S. Betts: Perfluoroalkyl acids: what is the evidence telling us? In: Environ. Health Perspect. , 115 (5), 2007, PMID 17520044 , PMC 1867999 (free full text).

[5] 3M: What is 3M Doing? ( Memento of December 10, 2014 in the Internet Archive ) , accessed on January 19, 2009.

[6] NICNAS: Existing Chemical Hazard Report: Potassium perfluorobutane sulfonate (PDF file; 1.85 MB) , 2005.