213241

Lithium sulfide

99.98% trace metals basis

• Synonym(s): (lithiosulfanyl)lithium
• Empirical Formula (Hill Notation): Li₂S
• CAS Number: 12136-58-2
• Molecular Weight: 45.95
• EC Number: 235-228-1
• MDL number: MFCD00011085
• UNSPSC Code: 12352300
• PubChem Substance ID: 24852674
• NACRES: NA.23

Properties

• grade: battery grade
• Assay: 99.98% trace metals basis
• form: powder
• composition: Li₂S
• reaction suitability: reagent type: catalyst; core: lithium
• density: 1.66 g/mL at 25 °C (lit.)
• application(s): battery manufacturing; battery manufacturing
• storage temp.: 2-8°C
• SMILES string: [Li]S[Li]
• InChI: 1S/2Li.S
• InChI key: ZWDBUTFCWLVLCQ-UHFFFAOYSA-N

Description

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.

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.

Safety Information

• Pictograms: GHS06,GHS05
• Signal Word: Danger
• Hazard Statements: H301,H314
• Precautionary Statements: P260 - P270 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 3 Oral - Eye Dam. 1 - Skin Corr. 1B
• Supplementary Hazards: EUH029
• Storage Class Code: 6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves