Sulfuryl chloride

Sulfuryl chloride
Names
	IUPAC name Sulfuryl chloride
	Other names Sulfonyl chloride; Sulfuric chloride; Sulfur dichloride dioxide
Identifiers
CAS Number	7791-25-5 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:29291 ;
ChEMBL	ChEMBL3186735;
ChemSpider	23050 ;
ECHA InfoCard	100.029.314
EC Number	232-245-6;
Gmelin Reference	2256
PubChem CID	24648;
RTECS number	WT4870000;
UNII	JD26K0R3J1 ;
UN number	1834
CompTox Dashboard (EPA)	DTXSID6029707 ;
	InChI InChI=1S/Cl2O2S/c1-5(2,3)4 Key: YBBRCQOCSYXUOC-UHFFFAOYSA-N ; InChI=1/Cl2O2S/c1-5(2,3)4 Key: YBBRCQOCSYXUOC-UHFFFAOYAD;
	SMILES ClS(Cl)(=O)=O;
Properties
Chemical formula	SO2Cl2
Molar mass	134.9698 g mol−1
Appearance	Colorless liquid with a pungent odor. Yellows upon standing.
Density	1.67 g cm−3 (20 °C)
Melting point	−54.1 °C (−65.4 °F; 219.1 K)
Boiling point	69.4 °C (156.9 °F; 342.5 K)
Solubility in water	hydrolyzes
Solubility	miscible with benzene, toluene, chloroform, CCl4, glacial acetic acid
Refractive index (nD)	1.4437 (20 °C)
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H314, H335
Precautionary statements	P260, P261, P264, P271, P280, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P312, P321, P363, P403+P233, P405, P501
NFPA 704 (fire diamond)	3 0 2 W
Flash point	Not flammable
Related compounds
Related sulfuryl halides	Sulfuryl fluoride
Related compounds	Thionyl chloride; Chlorosulfonic acid; Sulfuric acid; Chromyl chloride
	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 is an inorganic compound with the formula SO₂Cl₂. At room temperature, it is a colorless liquid with a pungent odor. Sulfuryl chloride is not found in nature.

Sulfuryl chloride is commonly confused with thionyl chloride, SOCl₂. The properties of these two sulfur oxychlorides are quite different: sulfuryl chloride is a source of chlorine whereas thionyl chloride is a source of chloride ions. An alternative IUPAC name is sulfuryl dichloride.

Sulfur is tetrahedral in SO₂Cl₂ and the oxidation state of the sulfur atom is +6, as in sulfuric acid.

Names



IUPAC name Sulfuryl chloride
Other names Sulfonyl chloride Sulfuric chloride Sulfur dichloride dioxide
Identifiers
CAS Number	7791-25-5^Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:29291^Y
ChEMBL	ChEMBL3186735
ChemSpider	23050^Y
ECHA InfoCard	100.029.314
EC Number	232-245-6
Gmelin Reference	2256
PubChem CID	24648
RTECS number	WT4870000
UNII	JD26K0R3J1^Y
UN number	1834
CompTox Dashboard (EPA)	DTXSID6029707
InChI InChI=1S/Cl2O2S/c1-5(2,3)4^Y Key: YBBRCQOCSYXUOC-UHFFFAOYSA-N^Y InChI=1/Cl2O2S/c1-5(2,3)4 Key: YBBRCQOCSYXUOC-UHFFFAOYAD
SMILES ClS(Cl)(=O)=O
Properties
Chemical formula	SO₂Cl₂
Molar mass	134.9698 g mol⁻¹
Appearance	Colorless liquid with a pungent odor. Yellows upon standing.
Density	1.67 g cm⁻³ (20 °C)
Melting point	−54.1 °C (−65.4 °F; 219.1 K)
Boiling point	69.4 °C (156.9 °F; 342.5 K)
Solubility in water	hydrolyzes
Solubility	miscible with benzene, toluene, chloroform, CCl₄, glacial acetic acid
Refractive index (n_D)	1.4437 (20 °C)
Hazards
GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H314, H335
Precautionary statements	P260, P261, P264, P271, P280, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P312, P321, P363, P403+P233, P405, P501
NFPA 704 (fire diamond)	3 0 2 W
Flash point	Not flammable
Related compounds
Related sulfuryl halides	Sulfuryl fluoride
Related compounds	Thionyl chloride Chlorosulfonic acid Sulfuric acid Chromyl chloride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is ^YN ?) Infobox references