Boron sulfide

Boron sulfide

Names
IUPAC name Boron sulfide
Other names Boron sesquisulfide, Diboron trisulfide
Identifiers
CAS Number	12007-33-9 Y
3D model (JSmol)	Interactive image
ECHA InfoCard	100.031.355
EC Number	234-504-9
PubChem CID	123269
CompTox Dashboard (EPA)	DTXSID50923210
InChI InChI=1S/B2S3/c3-1-5-2-4 Key: ZVTQDOIPKNCMAR-UHFFFAOYSA-N
SMILES S=BSB=S
Properties
Chemical formula	B2S3
Molar mass	117.80 g/mol
Appearance	colorless crystals
Density	1.55 g/cm3, solid
Melting point	563 °C (1,045 °F; 836 K)
Boiling point	decomposes at high T
Solubility in water	decomposes
Solubility	soluble in ammonia
Structure
Crystal structure	monoclinic, mP40, SpaceGroup = P21/c, No. 14
Coordination geometry	B: planar, sp2
Thermochemistry
Heat capacity (C)	111.7 J/mol K
Std molar entropy (S⦵298)	327 J/mol K
Std enthalpy of formation (ΔfH⦵298)	-240.6 kJ/mol
Hazards
Occupational safety and health (OHS/OSH):
Main hazards	source of H2S
GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H225, H260, H301, H311, H315, H318, H335
Precautionary statements	P210, P223, P231+P232, P280, P302+P352, P303+P361+P353, P305+P351+P338, P312, P402+P404, P405
NFPA 704 (fire diamond)	[1] 2 3 3
Flash point	18°C (64.4°F)
Safety data sheet (SDS)	trc-canada.com
Related compounds
Related compounds	BCl3 Lawesson's reagent
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

Boron sulfide is the chemical compound with the formula B₂S₃. It is a white, moisture-sensitive solid. It has a polymeric structure. The material has been of interest as a component of "high-tech" glasses and as a reagent for preparing organosulfur compounds.