Selenium oxydichloride

Selenium oxydichloride
Names
	IUPAC name Selenium oxychloride
	Other names Seleninyl chloride
Identifiers
CAS Number	7791-23-3 ;
3D model (JSmol)	Interactive image;
ChemSpider	23049 ;
ECHA InfoCard	100.029.313
EC Number	232-244-0;
PubChem CID	24647;
RTECS number	VS7000000;
UNII	1G57T5401W ;
CompTox Dashboard (EPA)	DTXSID50884438 ;
	InChI InChI=1S/Cl2OSe/c1-4(2)3 Key: LIRMPIXWGWLNND-UHFFFAOYSA-N ; InChI=1/Cl2OSe/c1-4(2)3 Key: LIRMPIXWGWLNND-UHFFFAOYAX;
	SMILES O=[Se](Cl)Cl;
Properties
Chemical formula	SeOCl2
Molar mass	165.87 g/mol
Appearance	colorless liquid
Density	2.43 g/cm3, liquid
Melting point	10.9 °C (51.6 °F; 284.0 K)
Boiling point	177.2 °C (351.0 °F; 450.3 K)
Refractive index (nD)	1.651 (20 °C)
Structure
Molecular shape	trigonal pyramidal
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H301, H314, H331, H373, H410
Precautionary statements	P260, P261, P264, P270, P271, P273, P280, P301+P310, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P311, P314, P321, P330, P363, P391, P403+P233, P405, P501
NFPA 704 (fire diamond)	3 0 1
	Lethal dose or concentration (LD, LC):
LDLo (lowest published)	2 mg/kg (rabbit, dermal)
Related compounds
Related compounds	SOCl2, POCl3
	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

Selenium oxydichloride is the inorganic compound with the formula SeOCl₂. It is a colorless liquid. With a high dielectric constant (55) and high specific conductance, it is an attractive solvent. Structurally, it is a close chemical relative of thionyl chloride SOCl₂, being a pyramidal molecule.

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