Barium sulfide

Barium sulfide
Identifiers
CAS Number	21109-95-5 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:32590 ;
ChemSpider	5256933 ;
ECHA InfoCard	100.040.180
EC Number	244-214-4;
Gmelin Reference	13627
PubChem CID	6857597;
UNII	TV3U2GEW4H;
CompTox Dashboard (EPA)	DTXSID30892157 ;
	InChI InChI=1S/Ba.S/q+2;-2 Key: CJDPJFRMHVXWPT-UHFFFAOYSA-N ; InChI=1/Ba.S/q+2;-2 Key: CJDPJFRMHVXWPT-UHFFFAOYAO;
	SMILES [Ba+2].[S-2];
Properties
Chemical formula	BaS
Molar mass	169.39 g/mol
Appearance	white solid
Density	4.25 g/cm3
Melting point	2,235 °C (4,055 °F; 2,508 K)
Boiling point	decomposes
Solubility in water	2.88 g/100 mL (0 °C) ; 7.68 g/100 mL (20 °C) ; 60.3 g/100 mL (100 °C) (reacts)
Solubility	insoluble in alcohol
Refractive index (nD)	2.155
Structure
Crystal structure	Halite (cubic), cF8
Space group	Fm3m, No. 225
Coordination geometry	Octahedral (Ba2+); octahedral (S2−)
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H315, H319, H335, H400
Precautionary statements	P261, P264, P271, P273, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P391, P403+P233, P405, P501
NFPA 704 (fire diamond)	2 3 2
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	226 mg/kg humans
Related compounds
Other anions	Barium oxide; Barium selenide; Barium telluride; Barium polonide
Other cations	Beryllium sulfide; Magnesium sulfide; Calcium sulfide; Strontium sulfide; Radium sulfide
	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

Barium sulfide is the inorganic compound with the formula Ba S. BaS is the barium compound produced on the largest scale. It is an important precursor to other barium compounds including barium carbonate and the pigment lithopone, ZnS/BaSO₄. Like other chalcogenides of the alkaline earth metals, BaS is a short wavelength emitter for electronic displays. It is colorless, although like many sulfides, it is commonly obtained in impure colored forms.

Identifiers

CAS Number	21109-95-5^Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:32590^Y
ChemSpider	5256933^Y
ECHA InfoCard	100.040.180
EC Number	244-214-4
Gmelin Reference	13627
PubChem CID	6857597
UNII	TV3U2GEW4H
CompTox Dashboard (EPA)	DTXSID30892157
InChI InChI=1S/Ba.S/q+2;-2^Y Key: CJDPJFRMHVXWPT-UHFFFAOYSA-N^Y InChI=1/Ba.S/q+2;-2 Key: CJDPJFRMHVXWPT-UHFFFAOYAO
SMILES [Ba+2].[S-2]
Properties
Chemical formula	BaS
Molar mass	169.39 g/mol
Appearance	white solid
Density	4.25 g/cm³
Melting point	2,235 °C (4,055 °F; 2,508 K)
Boiling point	decomposes
Solubility in water	2.88 g/100 mL (0 °C) 7.68 g/100 mL (20 °C) 60.3 g/100 mL (100 °C) (reacts)
Solubility	insoluble in alcohol
Refractive index (n_D)	2.155
Structure
Crystal structure	Halite (cubic), cF8
Space group	Fm3m, No. 225
Coordination geometry	Octahedral (Ba²⁺); octahedral (S²⁻)
Hazards
GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H315, H319, H335, H400
Precautionary statements	P261, P264, P271, P273, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P391, P403+P233, P405, P501
NFPA 704 (fire diamond)	2 3 2
Lethal dose or concentration (LD, LC):
LD₅₀ (median dose)	226 mg/kg humans
Related compounds
Other anions	Barium oxide Barium selenide Barium telluride Barium polonide
Other cations	Beryllium sulfide Magnesium sulfide Calcium sulfide Strontium sulfide Radium sulfide
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