Trifluormethansulfonsaeure

Bezeichnung:Trifluormethansulfonsaeure

CAS-Nr1493-13-6

Englisch Name:Trifluoromethanesulfonic acid

CBNumberCB7247316

SummenformelCHF3O3S

Molgewicht150.08

MOL-Datei1493-13-6.mol

Synonyma

Trifluormethansulfonsaeure

Trifluormethansulfonsaeure physikalisch-chemischer Eigenschaften

Schmelzpunkt	-40 °C
Siedepunkt	162 °C (lit.)
Dichte	1.696 g/mL at 25 °C (lit.)
Dampfdichte	5.2 (vs air)
Dampfdruck	8 mm Hg ( 25 °C)
Brechungsindex	n20/D 1.327(lit.)
RTECS-Nr.	PB2771000
Flammpunkt	None
storage temp.	Store below +30°C.
Löslichkeit	Miscible in H<sub>2</sub>O
pka	-14(at 25℃)
Aggregatzustand	Fuming Liquid
Wichte	1.696
Farbe	slightly brown
PH	<1 (H2O)
Wasserlöslichkeit	SOLUBLE
Sensitive	Hygroscopic
Merck	14,9676
BRN	1812100
Stabilität	Stable. Incompatible with acids, alkalis, metals.
InChIKey	ITMCEJHCFYSIIV-UHFFFAOYSA-N
LogP	0.3 at 25℃
CAS Datenbank	1493-13-6(CAS DataBase Reference)
NIST chemische Informationen	CF3SO3H(1493-13-6)
EPA chemische Informationen	Methanesulfonic acid, trifluoro- (1493-13-6)

Sicherheit

Kennzeichnung gefährlicher	C
R-Sätze:	21/22-35-10
S-Sätze:	26-36/37/39-45
RIDADR	UN 3265 8/PG 2
WGK Germany	2
F	3-10
Hazard Note	Corrosive/Hygroscopic
TSCA	Yes
HazardClass	8
PackingGroup	II
HS Code	29049020
Toxizität	LD50 orally in Rabbit: 1605 mg/kg LD50 dermal Rat > 2000 mg/kg

Gefahreninformationscode (GHS)

Trifluoromethanesulfonic acid Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R21/22:Gesundheitsschädlich bei Berührung mit der Haut und beim Verschlucken.
R35:Verursacht schwere Verätzungen.
R10:Entzündlich.
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
Clear very light yellow liquid. Smoke in the air, easy to absorb water to form a hydrate. It is easily soluble in water, releases a lot of heat, and hydrolyzes to generate trifluoromethane (CHF3) and sulfuric acid.
Verwenden
As a catalyst in Friedel-Crafts type acylation, alkylation and polymerization reactions; as a solvent for ESR; as a nonaqueous strong acid titrant; with trifluoroacetic acid, q.v., in solid-phase peptide synthesis. One of the strongest available monoprotic acids.
Verwenden
Trifluoromethanesulfonic acid acts as a catalyst for esterification reactions and an acidic titrant in nonaqueous acid-base titration. It is useful in protonations due to the presence of conjugate base triflate is non nucleophilic. It serves as a deglycosylation agent for glycoproteins. In addition, it is a precursor and a catalyst in organic chemistry. It reacts with acyl halides to prepare mixed triflate anhydrides, which are strong acylating agents used in Friedel-Crafts reactions. It acts as a key starting material for the preparation of ethers and olefins by reacting with alcohols as well as to prepare trifluoromethanesulfonic anhydride by dehydration reaction.
Definition
ChEBI: Trifluoromethanesulfonic acid is a one-carbon compound that is methanesulfonic acid in which the hydrogens attached to the methyl carbon have been replaced by fluorines. It is a one-carbon compound and a perfluoroalkanesulfonic acid. It is a conjugate acid of a triflate.
Allgemeine Beschreibung
Trifluoromethanesulfonic acid is a strong organic acid. It can be prepared by reacting bis(trifluoromethylthio)mercury with H₂O₂. On mixing with HNO₃, it affords a nitrating reagent (a nitronium salt). This reagent is useful for the nitration of aromatic compounds. Its dissociation in various organic solvents has been studied.
Sicherheitsprofil
A corrosive irritant to the skin, eyes, and mucous membranes. A strong acid. Violent reaction with acyl chlorides or aromatic hydrocarbons evolves toxic hydrogen chloride gas. When heated to decomposition it emits toxic fumes of Fand SOx. See also FLUORIDES.

Trifluoromethanesulfonic acid Upstream-Materialien And Downstream Produkte

Trifluormethansulfonsaeure Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

1493-13-6, Trifluoromethanesulfonic acid Verwandte Suche:

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