dilithiummonosulfide
Lithium sulfide
CAS: 12136-58-2
Molecular Formula: Li2S
dilithiummonosulfide - Names and Identifiers
| Name | Lithium sulfide |
| Synonyms | Lithium sulfide dilithiumsulfide lithiumsulfide(li2s) dilithiummonosulfide lithiumsulphide,anhydrous |
| CAS | 12136-58-2 |
| EINECS | 235-228-1 |
| InChIKey | ZWDBUTFCWLVLCQ-UHFFFAOYSA-N |
dilithiummonosulfide - Physico-chemical Properties
| Molecular Formula | Li2S |
| Molar Mass | 45.95 |
| Density | 1.66 g/mL at 25 °C (lit.) |
| Melting Point | >900°C |
| Water Solubility | soluble in water and ethanol |
| Appearance | Form Powder, Color Yellow |
| Storage Condition | 2-8°C |
| MDL | MFCD00011085 |
| Physical and Chemical Properties | Properties Lithium sulfide is an inorganic compound, its chemical formula is Li2S, which belongs to the cubic crystal system, anti-fluorite structure, and is very easy to deliquesce in the air. |
| Use | Application Lithium sulfide is an inorganic salt compound used as a potential electrolyte material in rechargeable lithium-ion batteries. |
dilithiummonosulfide - Risk and Safety
| Hazard Symbols | C - Corrosive |
| Risk Codes | R22 - Harmful if swallowed R31 - Contact with acids liberates toxic gas R34 - Causes burns |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
| UN IDs | UN 2923 8/PG 2 |
| WGK Germany | 3 |
| RTECS | OJ6439500 |
| FLUKA BRAND F CODES | 8-10-13 |
| TSCA | Yes |
| Hazard Class | 4.3 |
| Packing Group | II |
dilithiummonosulfide - Nature
| Specific gravity | 1.66 |
| Sensitivity | Moisture Sensitive |
| EPA chemical information | Lithium sulfide (Li2S) (12136-58-2) |
Last Update：2024-04-10 22:29:15
dilithiummonosulfide - Uses and synthesis methods
Preparation
Preparation of lithium sulfide: Put sulfur powder into a tetrahydrofuran solution containing lithium triethylborohydride, and after sufficient reaction, separate the solid powder from the liquid.
Production method
It is directly combined by simple substance, that is, stoichiometric lithium and sulfur are mixed, heated to melt in an inert atmosphere (argon or helium) in a nickel crucible, and a uniform melt can be formed.
Lithium sulfate can also be reduced with carbon powder.
Take a mixture of 100g lithium sulfate and 436g carbon powder and heat it in an electric furnace to form a homogeneous melt.
This product is very soluble in water, lithium hydroxide and lithium hydrosulfide are formed in the aqueous solution, which is strongly alkaline:
Li2S H2OLiOH LiHS
Hydrochloric acid and lithium sulfide react quickly when cold to produce hydrogen sulfide and lithium chloride:
Li2S HClLiCl 2H2S
Last Update：2024-04-09 20:52:54
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