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Sulfuryl chloride fluoride
Names
	IUPAC name Sulfuryl chloride fluoride
	Other names Sulfuryl fluoride chloride, TL-212
Identifiers
CAS Number	13637-84-8 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:39445 ;
ChemSpider	24370 ;
ECHA InfoCard	100.033.737
EC Number	237-126-2;
Gmelin Reference	1993
PubChem CID	26159;
RTECS number	WT4900000;
UNII	Y7TT1LZ9SD ;
CompTox Dashboard (EPA)	DTXSID0065567 ;
	InChI InChI=1S/ClFO2S/c1-5(2,3)4 Key: IXPAAHZTOUOJJM-UHFFFAOYSA-N ; InChI=1/ClFO2S/c1-5(2,3)4 Key: IXPAAHZTOUOJJM-UHFFFAOYAK;
	SMILES ClS(F)(=O)=O;
Properties
Chemical formula	ClFO2S
Molar mass	118.52 g/mol
Appearance	colourless gas
Density	1.623 g/cm3 at 0 °C
Melting point	−124.7 °C (−192.5 °F; 148.5 K)
Boiling point	7.1 °C (44.8 °F; 280.2 K)
Solubility in water	hydrolyses
Solubility in other solvents	SO2 and ether
Structure
Coordination geometry	tetrahedral
Hazards
	Occupational safety and health (OHS/OSH):
Main hazards	moderately toxic, corrosive
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H301, H311, H314, H331
Precautionary statements	P260, P261, P264, P270, P271, P280, P301+P310, P301+P330+P331, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P310, P311, P312, P321, P322, P330, P361, P363, P403+P233, P405, P501
Safety data sheet (SDS)	"External MSDS"
Related compounds
Related compounds	SO2Cl2,; SO2F2 ; ClSO2(NCO)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Sulfuryl chloride fluoride is a chemical compound with the formula SO₂ClF. It is a colorless, easily condensed gas. It is a tetrahedral molecule.

Liquified sulfuryl chloride fluoride is employed as a solvent for highly oxidizing compounds.^[1]

Preparation

The laboratory-scale synthesis begins with the preparation of potassium fluorosulfite:^[2]

SO₂ + KF → KSO₂F

This salt is then chlorinated to give sulfuryl chloride fluoride^[3]

KSO₂F + Cl₂ → SO₂ClF + KCl

Further heating (180 °C) of potassium fluorosulfite with the sulfuryl chloride fluoride gives sulfuryl fluoride.

KSO₂F + SO₂ClF → SO₂F₂ + KCl + SO₂

Alternatively, sulfuryl chloride fluoride can be prepared without using gases as starting materials by treating sulfuryl chloride with ammonium fluoride or potassium fluoride in trifluoroacetic acid.^[4]

SO₂Cl₂ + NH₄F → SO₂ClF + NH₄Cl

^ Koppe, Karsten; Bilir, Vural; Frohn, Hermann-J.; Mercier, Hélène P. A.; Schrobilgen, Gary J. (2007). "Syntheses, Solution Multi-NMR Characterization, and Reactivities of [C₆F₅Xe]+Salts of Weakly Coordinating Borate Anions, [BY4]-(Y = CF₃, C₆F₅, CN, or OTeF₅)". Inorganic Chemistry. 46 (22): 9425–9437. doi:10.1021/ic7010138. PMID 17902647.
^ Seel, F.; Czerepinski, Ralph G.; Cady, George H. (1967). "Potassium Fluorosulfite: (Potassium Fluorosulfinate)". Inorganic Syntheses. Vol. 9. pp. 113–115. doi:10.1002/9780470132401.ch29. ISBN 978-0-470-13240-1. {{cite book}}: |journal= ignored (help)
^ Seel, F.; Duncan, Leonard C.; Czerepinski, Ralph G.; Cady, George H. (1967). "Sulfuryl Chloride Fluoride and Sulfuryl Fluoride". Inorganic Syntheses. Vol. 9. pp. 111–113. doi:10.1002/9780470132401.ch28. ISBN 9780470132401. {{cite book}}: |journal= ignored (help)
^ Prakash Reddy, V.; Bellew, Donald R.; Prakash, G. K. Surya (1992). "A Convenient Preparation of Sulfuryl Chloride Fluoride". Journal of Fluorine Chemistry. 56 (2): 195–197. doi:10.1016/S0022-1139(00)81102-1.