1,1,2,2,3,3,4,4,4-Nonafluorbutan-1-sulfonsure

Bezeichnung:1,1,2,2,3,3,4,4,4-Nonafluorbutan-1-sulfonsure

CAS-Nr375-73-5

Englisch Name:Nonafluorobutane-1-sulfonic acid

CBNumberCB6321385

SummenformelC4HF9O3S

Molgewicht300.1

MOL-Datei375-73-5.mol

Synonyma

1,1,2,2,3,3,4,4,4-Nonafluorbutan-1-sulfonsure

1,1,2,2,3,3,4,4,4-Nonafluorbutan-1-sulfonsure physikalisch-chemischer Eigenschaften

Siedepunkt	112-114 °C/14 mmHg (lit.)
Dichte	1.811 g/mL at 25 °C (lit.)
Dampfdruck	7Pa at 20℃
Brechungsindex	n20/D 1.3230(lit.)
Flammpunkt	>230 °F
storage temp.	2-8°C
Löslichkeit	Soluble in water
Aggregatzustand	clear liquid
pka	-3.57±0.50(Predicted)
Farbe	Colorless to Light yellow to Light orange
Wasserlöslichkeit	1000g/L at 20℃
LogP	-0.34 at 23℃
CAS Datenbank	375-73-5(CAS DataBase Reference)
EPA chemische Informationen	Perfluorobutanesulfonic acid (375-73-5)

Sicherheit

Kennzeichnung gefährlicher	C
R-Sätze:	14-22-34
S-Sätze:	26-36/37/39-45
RIDADR	UN 3265 8/PG 2
WGK Germany	3
RTECS-Nr.	EK5930000
HazardClass	CORROSIVE
PackingGroup	III
HS Code	29049090
Giftige Stoffe Daten	375-73-5(Hazardous Substances Data)
Toxizität	LD50 orl-rat: 430 mg/kg ATDAEI 15(Suppl 1),S105,1996

Gefahreninformationscode (GHS)

Nonafluorobutane-1-sulfonic acid Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R14:Reagiert heftig mit Wasser.
R22:Gesundheitsschädlich beim Verschlucken.
R34:Verursacht Verätzungen.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
Chemische Eigenschaften
Nonafluorobutane-1-sulfonic acid is a colorless liquid. Perfluoro butyl sulfonate has the ability to react violently with water, so preventing exposure tomoisture should be a priority. It may also be incompatible with strong oxidizers. Upon decomposition, PFBS can form carbon oxides, sulfur oxides, and hydrogen fluoride.
Verwenden
Nonafluorobutane-1-sulfonic acid may be used as catalyst in the synthesis of 6-chloro-6H-dibenz[c,e][1,2]oxaphosphorin and N-benzylpyridin-2-amine.
Verwenden
Perfluoro butyl sulfonate (PFBS, nonafluoro-1-butanesulfonic acid, perfluorobutane sulfonic acid, 1-perfluorobutane sulfonic acid) is a four-carbon compound in the perfluoroalkyl family of chemicals. It can be found in stain repellents used for carpets and furniture. A specific form of the chemical, potassium perfluorobutane sulfonate, is being used as a flame retardant in place of brominated retardants. Perfluoro butyl sulfonate is being used as a substitute for other perfluoroalkyl compounds because it is not believed to bioaccumulate in the environment.
Nonafluorobutane-1-sulfonic acid can be considered as a superacid, which can be synthesized by reacting 1-iodononafluorobutane with sodium dithionite in the presence of sodium bicarbonate in acetonitrile/water.
Nonafluorobutane-1-sulfonic acid may be used as catalyst in the synthesis of 6-chloro-6H-dibenz[c,e][1,2]oxaphosphorin and N-benzylpyridin-2-amine.
Definition
ChEBI: A perfluoroalkanesulfonic acid that is butane-1-sulfonic acid in which all of the hydrogens of the butyl group have been replaced by fluorines.
Allgemeine Beschreibung
Nonafluorobutane-1-sulfonic acid can be considered as a superacid, which can be synthesized by reacting 1-iodononafluorobutane with sodium dithionite in the presence of sodium bicarbonate in acetonitrile/water.
Sicherheitsprofil
A poison by ingestion.When heated to decomposition it emits toxic vapors of SOx and Clí.
Synthese
Anhydrous sulfuric acid (37 g, 360 moles) was placed in a glass round-bottomed flask equipped with a magnetic stir bar, a reflux condenser, a thermometer, and a solid dispenser. Perfluorobutane sulfonate sodium salt (C4F9SO3Na, 35 g, 109 mmol) was placed in the dispenser and added to the acid for 10 minutes. No exothermic reaction was observed. The mixture was stirred at 120°C for 30 minutes at 1,000 rpm. 19F-NMR followed the progress of the reaction. Once the complete conversion of acid was observed, the internal temperature was raised to 140°C, and a vacuum (0.8 mbar residual pressure) was applied to the reaction mixture to distill Nonafluorobutane-1-sulfonic acid as a clear liquid.
Environmental Fate
Perfluoro butyl sulfonate is embedded into the carpet and furniture to offer protection against stains and spills. It is also applied to various household products as it may play a role in the retarding of flames during a fire. Over time as furniture, carpet, and other household products begin to degrade, the chemical may be introduced into the indoor environment in house dust. Perfluoro butyl sulfonate, along with other perfluoroalkyl compounds, has been detected in house dust samples indicating a potential route for exposure for occupants (Strynar and Lindstrom, 2008). Frequent vacuuming and dust removal can prevent buildup of the contaminant in household dust and the indoor environment. Perfluoro butyl sulfonate can also be found in water systems as a result of human waste streams. Samples of tap water collected in China, Japan, India, the United States, and Canada, all contained detectable levels of PFBS (Mak et al., 2009). While the chemical has been detected in both the indoor environment and drinking water, the lack of toxicological data related to PFBS makes it hard to determine what levels of exposure are acceptable.

Nonafluorobutane-1-sulfonic acid Upstream-Materialien And Downstream Produkte

1,1,2,2,3,3,4,4,4-Nonafluorbutan-1-sulfonsure Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

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