Lithium sulfide
ALDRICH/213241 - 99.98% trace metals basis
Synonym: (lithiosulfanyl)
CAS Number: 12136-58-2
Empirical Formula (Hill Notation): Li2S
Molecular Weight: 45.95
EC Number: 235-228-1
MDL Number: MFCD00011085
Linear Formula: Li2S
Product Type: Chemical
| application(s) | battery manufacturing battery manufacturing |
| assay | 99.98% trace metals basis |
| composition | Li2S |
| density | 1.66 g/mL at 25 °C (lit.) |
| form | powder |
| grade | battery grade |
| InChI | 1S/2Li.S |
| InChI key | ZWDBUTFCWLVLCQ-UHFFFAOYSA |
| Quality Level | 300 ![]() |
| reaction suitability | reagent type: catalyst core: lithium |
| SMILES string | [Li]S[Li] |
| storage temp. | 2-8°C |
| Application: | High-purity lithium sulfide is primarily used as a precursor in the synthesis of other lithium compounds such as lithium thioacetate, lithium tetrafluoroborate, and thio-LISICONs, which are used in lithium-ion batteries among other applications. High-purity lithium sulfide can also be used directly in battery applications as a cathode material in lithium-sulfur batteries. With a theoretical capacity of up to 1166 mAh/g, almost four times that of lithium cobalt oxide, lithium sulfide has gained attention as next-generation cathode material. Additionally, lithium sulfide is used as a precursor in the semiconductor industry for the production of thin-film transistors (TFTs) and other electronic devices, especially lithium sulfide-phosphorus oxide (Li2S-P2O5) TFTs. It is also used in the chemical manufacturing industry as a precursor for lithium hydride, lithium borohydride, and lithium amide, among many other applications. |
| Features and Benefits: | Higher Purity - 99.98%, making it an ideal choice for applications that require higher purity materials. |
| General description: | Lithium sulfide powder is a high-purity, inorganic compound that appears as a white to yellowish crystalline powder. It has a molecular weight of 45.95 g/mol and a density of 1.82 g/cm³. Lithium sulfide is a strong nucleophile and has the chemical formula Li₂S. It readily reacts with water to produce lithium hydroxide and hydrogen sulfide gas. It is also soluble in some organic solvents, such as pyridine and dimethyl sulfoxide. |
| Packaging: | 5, 10, 50 g in glass bottle |
| Symbol | ![]() GHS05,GHS06 |
| Signal word | Danger |
| Hazard statements | H301 - H314 |
| Precautionary statements | P260 - P270 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 |
| Hazard Codes | C |
| Risk Statements | 22-31-34 |
| Safety Statements | 26-36/37/39-45 |
| RIDADR | UN 2923 6.1(8) / PGII |
| WGK Germany | WGK 2 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Supplemental Hazard Statements | EUH029 |
| Purity | 99.98% trace metals basis |
| Density | 1.66 g/mL at 25 °C (lit.) |
| Storage Temp. | 2-8°C |
| UNSPSC | 12352300 |



