Potassium fluorosulfonate

Crystal structure
	__ K + __ S 6+ __ O 2− __ F -
Crystal system	orthorhombic
Space group	Pnma (No. 62)
Coordination numbers	[12] Ba
General
Surname	Potassium fluorosulfonate
other names	Potassium fluorosulfate
Ratio formula	KSO 3 F
Brief description	White dust
External identifiers / databases
EC number	625-454-2
ECHA InfoCard	100.153.950
PubChem	23678652
Wikidata	Q15633872
properties
Molar mass	138.16 g mol −1
Physical state	firmly
Melting point	350 ° C with decomposition
safety instructions
GHS labeling of hazardous substances danger
H and P phrases	H: 314
	EUH: 031
	P: 280-305 + 351 + 338-310
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Kaliumfluorosulfonat , KSO ₃ F is the potassium - salt of fluorosulfonic acid HSO ₃ F.

Extraction and presentation

In the reaction of potassium fluoride and fluorosulfonic acid , the reaction product is, in addition to hydrogen fluoride, potassium fluorosulfonate .

{\ displaystyle {\ ce {KF + HSO3F -> KSO3F + HF}}}

The reaction between potassium perchlorate and fluorosulfonic acid also produces potassium fluorosulfonate.

{\ displaystyle {\ ce {KClO4 + HSO3F -> KSO3F + HClO4}}}

Potassium fluorosulfonate is the reaction product from the reaction of fluorofluorosulfonate and potassium iodide .

{\ displaystyle {\ ce {FSO3F + 2 KI -> KSO3F + KF + I2}}}

Of potassium nitrate and Peroxydisulfuryldifluorid can, among other Kaliumfluorosulfonat arise.

{\ displaystyle {\ ce {KNO3 + S2O6F2 -> KSO3F + NO2SO3F + 1 / 2O2}}}

properties

Potassium fluorosulfonate is a white powder. At 350 ° C the compound melts with partial decomposition.

The compound crystallizes in the space group Pnma (space group no. 62) with the lattice parameters a = 8.62 Å, b = 5.84 Å, c = 7.35 Å and Z = 4. The crystal structure is related to that of barium sulfate . Template: room group / 62

safety instructions

The substance attacks the skin and causes serious damage to the eyes.

The compound reacts violently with acids , strong oxidizing agents , bases , metals and glass . The decomposition products of the salt are sulfur oxides , hydrogen fluoride and potassium oxide . When it comes into contact with acids, poisonous gases are produced.

Individual evidence

↑ ^a ^b ^c data sheet Potassium fluorosulfate from AlfaAesar, accessed on March 4, 2019 ( PDF )(JavaScript required) .
↑ ^a ^b ^c ^d ^e data sheet Potassium fluorosulfate from Sigma-Aldrich , accessed on March 4, 2019 ( PDF ).
↑ ^a ^b Template: CL Inventory / not harmonized No harmonized classification is yet available for this substance . A labeling of potassium sulfurofluoridate in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), retrieved on June 14, 2019, is reproduced from a self-classification by the distributor .
^ HJ Emeléus, AG Sharpe: Advances in Inorganic Chemistry and Radiochemistry . Volume 16. Academic Press, 1974. ISBN 0080578659 . Pp. 180-182
↑ Frank B. Dudley, George H. Cady, David F. Eggers Jr .: Fluorine Fluorosulfonate . J. Am. Chem. Soc., January 1956, pp. 290–292 , doi : 10.1021 / ja01583a011 .
↑ AM Qureshi, HA Carter, F. Aubke: Formation, Structure, and Properties of Nitrosonium and Nitronium Fluorosulfate . Canadian Journal of Chemistry, 1971, pp. 35-44 , doi : 10.1139 / v71-006 .
↑ K. O'Sullivan, RC Thompson, James Trotter: The Crystal Structure of Potassium Fluorosulphate . In: Journal of the Chemical Society A: Inorganic, Physical, Theoretical . No. 0 , 1967, p. 2024-2027 , doi : 10.1039 / J19670002024 .

[ALFA-1] ta sheet Potassium fluorosulfate from AlfaAesar, accessed on March 4, 2019 ( PDF )(JavaScript required) .

[ALDRICH-2] ↑ ^a ^b ^c ^d ^e data sheet Potassium fluorosulfate from Sigma-Aldrich , accessed on March 4, 2019 ( PDF ).

[ECHA-3] Template: CL Inventory / not harmonized No harmonized classification is yet available for this substance . A labeling of potassium sulfurofluoridate in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), retrieved on June 14, 2019, is reproduced from a self-classification by the distributor .

[4] HJ Emeléus, AG Sharpe: Advances in Inorganic Chemistry and Radiochemistry . Volume 16. Academic Press, 1974. ISBN 0080578659 . Pp. 180-182

[5] Frank B. Dudley, George H. Cady, David F. Eggers Jr .: Fluorine Fluorosulfonate . J. Am. Chem. Soc., January 1956, pp. 290–292 , doi : 10.1021 / ja01583a011 .

[6] AM Qureshi, HA Carter, F. Aubke: Formation, Structure, and Properties of Nitrosonium and Nitronium Fluorosulfate . Canadian Journal of Chemistry, 1971, pp. 35-44 , doi : 10.1139 / v71-006 .

[7] K. O'Sullivan, RC Thompson, James Trotter: The Crystal Structure of Potassium Fluorosulphate . In: Journal of the Chemical Society A: Inorganic, Physical, Theoretical . No. 0 , 1967, p. 2024-2027 , doi : 10.1039 / J19670002024 .