Sulfur dibromide

Sulfur dibromide

Names
IUPAC name bromo thiohypobromite
Identifiers
CAS Number	14312-20-0 Y
3D model (JSmol)	Interactive image
ChemSpider	123231
PubChem CID	139733
InChI InChI=1S/Br2S/c1-3-2 Key: XXWVVIRTHDRMEY-UHFFFAOYSA-N
SMILES S(Br)Br
Properties
Chemical formula	Br2S
Molar mass	191.873 g mol−1
Appearance	gas
Structure
Coordination geometry	C2v
Molecular shape	Bent
Hazards
Safety data sheet	ICSC 1661
EU classification (DSD) (outdated)	Corrosive (C) Irritant (Xi) Dangerous for the environment (N)
R-phrases (outdated)	R14, R34, R37, R50
S-phrases (outdated)	(S1/2), S26, S45, S61
Related compounds
Related	Disulfur dibromide Thionyl bromide Sulfuryl bromide
Related compounds	Sulfur difluoride Sulfur tetrafluoride Sulfur hexafluoride Sulfur diiodide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Sulfur dibromide is the chemical compound with the formula Br₂S. It is a toxic gas.

Sulfur dibromide readily decomposes into S₂Br₂ and elemental bromine. In analogy to sulfur dichloride, it hydrolyzes in water to give hydrogen bromide, sulfur dioxide and elemental sulfur.

SBr₂ can be prepared by reacting SCl₂ with HBr, but due to its rapid decomposition it cannot be isolated at standard conditions. Instead, the more stable S₂Br₂ is obtained.^[1]

References