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Revision as of 11:48, 5 December 2011 editBeetstra (talk | contribs)Edit filter managers, Administrators172,031 edits Saving copy of the {{chembox}} taken from revid 455212176 of page Perfluorobutanesulfonic_acid for the Chem/Drugbox validation project (updated: 'CASNo').		Latest revision as of 02:04, 12 September 2024 edit MadeOfAtoms (talk | contribs)Extended confirmed users2,653 edits →United States: correct limit and include hazard index limit and url
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	{{ambox | text = This page contains a copy of the infobox ({{tl|chembox}}) taken from revid of page ] with values updated to verified values.}}
	{{Chembox		{{Chembox
			| Verifiedfields = changed
⚫	| verifiedrevid = 455210813
			| Watchedfields = changed
⚫	| ImageFile = Perfluorobutanesulfonic acid.svg
		⚫	| verifiedrevid = 464198802
⚫	| ImageSize = 210px
	| PIN = Perfluorobutanesulfonic acid		| ImageFile = Perfluorobutanesulfonic acid.svg
		⚫	| ImageSize = 210px
⚫	| SystematicName = 1,1,2,2,3,3,4,4,4-Nonafluorobutane-1-sulfonic acid
		⚫	| ImageFile2 = Perfluorobutanesulfonic acid 3D BS.png
⚫	| OtherNames = FC-98<br />
			| ImageSize2 = 210px
		⚫	| PIN = 1,1,2,2,3,3,4,4,4-Nonafluorobutane-1-sulfonic acid
		⚫	| OtherNames = FC-98<br />
	Nonaflate<br />		Nonaflate<br />
	Nonafluorobutanesulphonic acid<br />		Nonafluorobutanesulphonic acid<br />
	Perfluorobutane sulfonate<br />		Perfluorobutane sulfonate<br />
	PFBS		PFBS
	| Section1 = {{Chembox Identifiers		| Section1 = {{Chembox Identifiers
			| CASNo_Ref = {{cascite|correct|CAS}}
	| CASNo = <!-- blanked - oldvalue: 375-73-5 -->
	| CASOther = 59933-66-3		| CASNo = 375-73-5
			| UNII_Ref = {{fdacite|correct|FDA}}
	| PubChem = 67815
			| UNII = 1FV02N6NVO
	| PubChem_Ref = {{pubchemcite}}
	| ChemSpiderID = 61132		| PubChem = 67815
			| ChemSpiderID = 61132
	| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}		| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
⚫	| EINECS = 206-793-1
			| ChEBI_Ref = {{ebicite|changed|EBI}}
⚫	| UNNumber = 3094, 3265
	| RTECS = EK5930000		| ChEBI = 132446
		⚫	| EINECS = 206-793-1
⚫	| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
		⚫	| UNNumber = 3094, 3265
			| RTECS = EK5930000
		⚫	| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
	| StdInChI = 1S/C4HF9O3S/c5-1(6,3(9,10)11)2(7,8)4(12,13)17(14,15)16/h(H,14,15,16)		| StdInChI = 1S/C4HF9O3S/c5-1(6,3(9,10)11)2(7,8)4(12,13)17(14,15)16/h(H,14,15,16)
	| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}		| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
	| StdInChIKey = JGTNAGYHADQMCM-UHFFFAOYSA-N		| StdInChIKey = JGTNAGYHADQMCM-UHFFFAOYSA-N
	| SMILES = OS(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F		| SMILES = OS(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F
	| InChI = 1S/C4HF9O3S/c5-1(6,3(9,10)11)2(7,8)4(12,13)17(14,15)16/h(H,14,15,16)		| InChI = 1S/C4HF9O3S/c5-1(6,3(9,10)11)2(7,8)4(12,13)17(14,15)16/h(H,14,15,16)
	| InChIKey = JGTNAGYHADQMCM-UHFFFAOYSA-N}}		| InChIKey = JGTNAGYHADQMCM-UHFFFAOYSA-N}}
	| Section2 = {{Chembox Properties		| Section2 = {{Chembox Properties
	| Formula = C<sub>4</sub>HF<sub>9</sub>O<sub>3</sub>S		| Formula = C<sub>4</sub>HF<sub>9</sub>O<sub>3</sub>S
	| MolarMass = 300.10 g/mol		| MolarMass = 300.10 g/mol
	| Density =		| Density =
	| Solvent =		| Solvent =
	| SolubleOther =		| SolubleOther =
			| BoilingPtC = 210–212
	| MeltingPt = 76–84 °C<ref>{{cite web |url=http://www.chemexper.com/chemicals/supplier/cas/59933-66-3.html |title=Nonafluorobutanesulphonic acid - 59933-66-3 Catalog of Chemical Suppliers |format= |work= |accessdate=16 January 2009}}</ref>
			| BoilingPt_ref = <ref name=PubChem/>}}
	| BoilingPt = 211 °C <ref name="ChemID"></ref>}}
	| Section3 = {{Chembox Hazards		| Section3 = {{Chembox Hazards
			| GHSPictograms = {{GHS05}}{{GHS07}}<ref name="Sigma-Aldrich">{{Sigma-Aldrich|ALDRICH|id=562629|name=Nonafluorobutane-1-sulfonic acid|accessdate=15 January 2018}}</ref>
	| EUClass = Corrosive ('''C''')
			| GHSSignalWord = Danger
	| RPhrases = {{R34}}<ref>{{cite web |url=http://www.apolloscientific.co.uk/downloads/msds/PC9086_msds.pdf |title=Safety Data Sheet-Nonafluorobutanesulphonic acid |format= |work= |accessdate=16 January 2009}}</ref>
			| HPhrases = {{H-phrases|302|314}}
			| PPhrases = {{P-phrases|280|305+351+338|310}}<ref name="Sigma-Aldrich" />
	}}		}}
	}}		}}
			'''Perfluorobutanesulfonic acid''' ('''PFBS''') is a ] ] having a four-carbon ] chain and a ] ]. It is stable and unreactive because of the strength of ]s. It can occur in the form of a colorless liquid or a corrosive solid.<ref name=PubChem>{{cite web |title=Perfluorobutanesulfonic acid |url=https://pubchem.ncbi.nlm.nih.gov/compound/Perfluorobutanesulfonic-acid |website=PubChem |publisher=NIH |access-date=10 August 2021}}</ref> Its ] is '''perfluorobutanesulfonate''' (also called ''']''') which functions as the ] in ]s.
			Since June 2003, ] has used PFBS as a replacement for the persistent, toxic, and ] compound ] (PFOS) in its ] stain repellents.<ref>{{cite journal |last=Ullah |first=Aziz |title=The Fluorochemical Dilemma: What the PFOS/PFOA fuss is all about |journal=Cleaning & Restoration |date=October 2006 |url=https://www.restorationindustry.org/buyersguide/FlurochemicalsOct06.pdf |accessdate=16 January 2009}}</ref> 3M markets ] with PFBS in two fluorosurfactants.<ref name=long>{{cite journal |author=Renner R |title=The long and the short of perfluorinated replacements |journal=Environ. Sci. Technol. |volume=40 |issue=1 |pages=12–3 |date=January 2006 |pmid=16433328 |doi=10.1021/es062612a|doi-access=free }}</ref>
			== Safety ==
			PFBS has a ] of a little over one month in humans, much shorter than PFOS with 5.4 years.<ref name="Betts2007">{{cite journal |author=Betts KS |title=Perfluoroalkyl acids: what is the evidence telling us? |journal=Environ. Health Perspect. |volume=115 |issue=5 |pages=A250–6 |date=May 2007 |pmid=17520044 |doi=10.1289/ehp.115-a250 |pmc=1867999}}</ref> PFBS is persistent in the environment. Studies have not yet been specifically conducted to determine safety in humans.
			The ] decision adding PFBS and its salts to the ] Candidate List of ] states:<blockquote>"The combined intrinsic properties justifying the inclusion as a substance for which there is scientific evidence of probable serious effects to human health and the environment which give rise to an equivalent level of concern are the following: very high persistence, high mobility in water and soil, high potential for long-range transport, and difficulty of remediation and water purification as well as moderate bioaccumulation in humans. The observed probable serious effects for human health and the environment are thyroid hormonal disturbances and reproductive toxicity seen in rodents, and effects on liver, kidney and haematological system in rats, hormonal disturbances and effects on reproduction in marine medaka fish and effects on expression of hormone receptors in tadpoles. Together, these elements lead to a very high potential for irreversible effects."<ref name=":0">{{Cite web|url=https://echa.europa.eu/documents/10162/079c04a0-2464-4168-f132-a22ffb04d910|title=Inclusion of substances of very high concern in the Candidate List for eventual inclusion in Annex XIV|last=Schilliger-Musset|first=Christel|date=2020-01-16|website=European Chemicals Agency (ECHA)|format=PDF|archive-url=|archive-date=|access-date=}}</ref></blockquote>
			== Legislation and regulation ==
			===Canada===
			British Columbia currently provides soil standards for perfluorobutane sulfonate (PFBS).<ref>{{cite web |title=PFAS in Canadian Provinces: Where are the environmental regulations? |url=https://environmentjournal.ca/pfas-in-canadian-provinces-where-are-the-regulations/ |website=Environmental Journal |access-date=9 July 2023 |date=March 27, 2023}}</ref> In November 2017, the BC Ministry of Environment and Climate Change Strategy released soil and water standards for three PFAS including PFBS to the British Columbia Contaminated Sites Regulation.<ref>{{cite web |last1=SLR Consulting |title=Guidance for the Assessment and Remediation of Per- and Polyfluoroalkyl Substances in British Columbia |url=http://csapsociety.bc.ca/wp-content/uploads/Final-PFAS-Guidance-Document-dated-2019-05-28_Readers-note.pdf |website=Society of Contaminated Sites Approved Professionals of British Columbia |access-date=9 July 2023 |date=May 2019}}</ref>
			=== European Union ===
			In January 2020, PFBS and its salts were added to the ] Candidate List of ] (SVHCs) on the grounds of "Equivalent level of concern having probable serious effects to human health (Article 57(f) – human health)" and "Equivalent level of concern having probable serious effects to the environment (Article 57(f) – environment)".<ref name=":0" />
			=== United States ===
			In April 2024, the ] announced the final ] (NPDWR) for six PFAS compounds, specifying a ] (MCL) of 2000 parts per trillion (ppt) for PFBS and a "hazard index" limit on mixtures of PFBS, ], ] and ].<ref>{{Cite web |last=US EPA |date=10 April 2024 |title=Per- and Polyfluoroalkyl Substances (PFAS): Final PFAS National Primary Drinking Water Regulation |url=https://www.epa.gov/sdwa/and-polyfluoroalkyl-substances-pfas |access-date=11 September 2024 |website=www.epa.gov}}</ref><ref>{{cite web |last1=US EPA |title=Understanding the Final PFAS National Primary Drinking Water Regulation Hazard Index Maximum Contaminant Level |url=https://www.epa.gov/system/files/documents/2024-04/pfas-npdwr_fact-sheet_hazard-index_4.8.24.pdf |website=www.epa.gov |access-date=12 September 2024}}</ref>
			A few states have proposed or implemented regulations on PFBS in drinking watering either as contamination standards, guidance or health advisories.<ref>{{cite web |title=State-by-State Regulation of PFAS Substances in Drinking Water |url=https://www.bclplaw.com/en-US/insights/state-by-state-regulation-of-pfas-substances-in-drinking-water.html |publisher=Bryan Cave Leighton Paisner LLP |access-date=11 August 2021 |date=January 22, 2021}}</ref> In 2020, ] adopted drinking water standards for 5 previously unregulated PFAS compounds, including PFBS which has a maximum contaminant level (MCL) of 420 parts per trillion (ppt).<ref>{{Cite web |last=Matheny |first=Keith |date=3 August 2020 |title=Michigan's drinking water standards for these chemicals now among toughest in nation |url=https://www.freep.com/story/news/local/michigan/2020/08/03/tougher-pfas-standards-drinking-water-michigan/5574268002/ |url-status=live |archive-url=https://web.archive.org/web/20220131152306/https://eu.freep.com/story/news/local/michigan/2020/08/03/tougher-pfas-standards-drinking-water-michigan/5574268002/ |archive-date=31 January 2022 |access-date=31 March 2022 |website=Detroit Free Press}}</ref><ref>{{Cite web |date=3 August 2020 |title=New state drinking water standards pave way for expansion of Michigan's PFAS clean-up efforts |url=https://www.michigan.gov/egle/0,9429,7-135--535602--,00.html |url-status=live |archive-url=https://web.archive.org/web/20220103083526/https://www.michigan.gov/egle/0,9429,7-135--535602--,00.html |archive-date=3 January 2022 |access-date=5 April 2022 |website=Michigan.gov}}</ref>
			==See also==
			* ]
			* ] (PFAS)
			* ]
			* ]
			* ]
			==References==
			{{reflist}}
			]
			]