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| CAS No.: | 21109-95-5 |
|---|---|
| Name: | Barium sulfide |
| Article Data: | 287 |
| Molecular Structure: | |
|
|
|
| Formula: | BaS |
| Molecular Weight: | 394.094 |
| Synonyms: | Bariummonosulfide;Barium sulfide (BaS); |
| EINECS: | 244-214-4 |
| Density: | 4.25 g/mL at 15 °C(lit.) |
| Melting Point: | 1200 °C |
| Appearance: | colourless crystals, or white to grey-brown powder |
| Hazard Symbols: |
 Xn,  Xi,  N
|
| Risk Codes: | 20/22-31-50-36/37/38 |
| Safety: | 28-61 |
| Transport Information: | UN 2813 4.3/PG 2 |
| PSA: | 32.09000 |
| LogP: | 0.64820 |
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Chemistry
Molecular structure of Barium sulfide (CAS NO.21109-95-5) is:
Product Name: Barium sulfide
CAS Registry Number: 21109-95-5
IUPAC Name: sulfanylidenebarium
Molecular Weight: 169.392 [g/mol]
Molecular Formula: BaS
H-Bond Donor: 0
H-Bond Acceptor: 0
EINECS: 256-814-3
Sensitive: Moisture Sensitive
Melting point: 1200°C
Density: 4.25 g/mL at 15 °C(lit.)
Appearance: Colourless crystals, or white to grey-brown powder
Solubility: Insoluble in alcohol
Stable: Stable, but decomposes on heating. Incompatible with acids, oxidizing agents, water
Product categories: Industrial/Fine Chemicals;Catalysis and Inorganic Chemistry;Chalcogenides;Metal and Ceramic Science
SMILES: [Ba+2].[S-2]
InChI: InChI=1/Ba.S/q+2;-2
InChIKey: CJDPJFRMHVXWPT-UHFFFAOYAO
Std. InChI: InChI=1S/Ba.S/q+2;-2
Std. InChIKey: CJDPJFRMHVXWPT-UHFFFAOYSA-N
Uses
Barium sulfide (CAS NO.21109-95-5) is considered to be the most important synthetic material of barium, the pigment lithopone, ZnS/BaSO4 and being the precursor to BaCO3.
Production
Barium sulfide (CAS NO.21109-95-5) was prepared by Vincentius Casciarolus via a crude version, what is now known as a "carbothermic reduction", employing flour in place of carbon(BaSO4 is available as the common mineral barite.):
BaSO4 + 2 C → BaS + 2 CO2
Safety Profile
Hazard Codes of Barium sulfide (CAS NO.21109-95-5): 
Xn,Xi ;
N
Risk Statements: 20/22-31-50-36/37/38
R20/22: Harmful by inhalation and if swallowed.
R31: Contact with acids liberates toxic gas.
R50: Very toxic to aquatic organisms.
R36/37/38: Irritating to eyes, respiratory system and skin.
Safety Statements: 28-61
S28: After contact with skin, wash immediately with plenty of soap-suds.
S61: Avoid release to the environment. Refer to special instructions / safety data sheets.
RIDADR: UN 2813 4.3/PG 2
WGK Germany: 2
HazardClass: 4.3
PackingGroup: III
Specification
Barium sulfide , its cas register number is 21109-95-5. It also can be called Barium sulfide (BaS) ; Barium sulphide .It is a colourless crystals, or white to grey-brown powder.