Potassium trifluoromethanesulfonate

Bezeichnung:Potassium trifluoromethanesulfonate

CAS-Nr2926-27-4

Englisch Name:Potassium trifluoromethanesulfonate

CBNumberCB1215063

SummenformelCF3KO3S

Molgewicht188.17

MOL-Datei2926-27-4.mol

Potassium trifluoromethanesulfonate physikalisch-chemischer Eigenschaften

Schmelzpunkt	238.5°C
storage temp.	Inert atmosphere,Room Temperature
Aggregatzustand	solid
Farbe	White to Almost white
Wasserlöslichkeit	Soluble in water.
Sensitive	Hygroscopic
Hydrolytic Sensitivity	6: forms irreversible hydrate
BRN	3727495
InChI	InChI=1S/CHF3O3S.K/c2-1(3,4)8(5,6)7;/h(H,5,6,7);/q;+1/p-1
InChIKey	GLGXXYFYZWQGEL-UHFFFAOYSA-M
SMILES	C(F)(F)(F)S([O-])(=O)=O.[K+]
CAS Datenbank	2926-27-4(CAS DataBase Reference)

Sicherheit

Kennzeichnung gefährlicher	Xi,C
R-Sätze:	36/37/38
S-Sätze:	26-36
WGK Germany	3
F	3-10
TSCA	No
HazardClass	CORROSIVE
HS Code	29049090

Gefahreninformationscode (GHS)

Potassium trifluoromethanesulfonate Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
Chemische Eigenschaften
white crystals or crystalline powder
Verwenden
Potassium trifluoromethanesulfonate is used as a reagent in the synthesis of guanine-quadruplex hybrid materials. It acts as a supporting electrolyte in the electrochemical study of evidence for gold anion in ethylenediamine. It is involved in the preparation of N-fluoro-2,4,6-trimethylpyridinium triflate by reacting with 2,4,6-trimethyl-pyridine. Further, it is used in the preparation of imidazolium salt, 3-methyl-1-(3R,3aR,6S,6aR)-[6-(benzyloxy)-hexahydrofuro[3,2-b]furan-3-yl]imidazolium trifluoromethanesulfonate.
Verwenden
Potassium trifluoromethanesulfonate is used in studies of mixed alkali effects and short range interactions in poly(ethylene oxide) electrolytes,1 and characteristics of the electrochemical behavior of glassy carbon in super-acid media.
Allgemeine Beschreibung
Potassium trifluoromethanesulfonate (KOTf, potassium triflate) is the potassium salt of trifluoromethanesulphonic acid. It has been prepared by neutralizing a warm aqueous solution of trifluoromethanesulphonic acid with potassium carbonate. The structure of siloxane–poly(oxyethylene) hybrids doped with potassium triflate has been investigated.
structure and hydrogen bonding
According to the results of temperature dependent powder diffractometry potassium trifluoromethanesulfonate is dimorphic. The phase transition occurs between -63 degreesC and 45 degreesC. The low-temperature modification crystallizes monoclinic with a=10.300(3)Angstrom, b = 6.052(1) Angstrom, c = 14.710(4) Angstrom, beta =111.83(2)degrees (-120 degreesC) and the room-temperature modification with a=10.679(5) Angstrom, b=5.963(2)Angstrom, c=14.624(5)Angstrom, beta =111.57(3)degrees, Z=6, P2(1). According to single crystal structure determination, potassium trifluoromethanesulfonate consists of three different potassium-oxygen-coordination polyhedra, linked by sulfur atoms of the trifluoromethanesulfonate groups. This results in a channel structure with all lipophilic trifluoromethane groups pointing into these channels[1].
Einzelnachweise
[1] Korus, G. , and M. Jansen . "Crystal structure, phase transition, and potassium ion conductivity of potassium trifluoromethanesulfonate." (2001).

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