A7014312
Potassium sulfide anhydrous , ≥40% , 1312-73-8
Synonym(s):
Potassium monosulfide;Potassium sulfide
CAS NO.：1312-73-8
Empirical Formula: K2S
Molecular Weight: 110.26
MDL number: MFCD00043083
EINECS: 215-197-0
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | 912° |
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| Boiling point: | 912 °C |
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| Density | 1.74 |
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| solubility | soluble in H2O, ethanol; insoluble in ethyl ether |
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| form | Powder |
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| color | white to yellow |
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| Water Solubility | very soluble H2O, alcohol, glycerol; insoluble ether [MER06] |
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| Sensitive | air sensitive, hygroscopic |
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| Crystal Structure | Reverse CaF2 type |
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| crystal system | Cube |
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| Space group | Fm3m |
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| Lattice constant |
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| Stability: | Stable, but air-sensitive. Flammable. Contact with acids liberates poisonous hydrogen sulfide. Anhydrous material may be spontaneously combustible. |
Description and Uses
Potassium Sulfide is reported to be used as a reactant for the efficient synthesis of variously substituted thiophenes through copper-catalyzed tandem S-alkenylation with 1,4-diiodo-1,3-dienes. It is also used as a reactant for the synthesis of KBi6.33S10 and K2Bi8S13 at high temperature.
Safety
| Symbol(GHS) |   GHS05,GHS09 |
| Signal word | Danger |
| Hazard statements | H314-H400 |
| Precautionary statements | P260-P264-P280-P301+P330+P331-P303+P361+P353-P363-P304+P340-P310-P321-P305+P351+P338-P405-P501-P273-P391-P501 |
| Hazard Codes | C,N |
| Risk Statements | 31-34-50 |
| Safety Statements | 26-45-61 |
| RIDADR | 1382 |
| HazardClass | 4.2 |
| PackingGroup | II |
