920398

Lithium bis(trimethylsilyl)amide

99.9% trace metals basis

• Sinonimo/i: LHMDS, LiHMDS, LiTMSA, Lithium hexamethyldisilazide, Hexamethyldisilazane lithium salt
• Formula condensata: [(CH₃)₃Si]₂NLi
• Numero CAS: 4039-32-1
• Peso molecolare: 167.33
• Numero MDL: MFCD00008261
• Codice UNSPSC: 12352111

Proprietà

• Livello qualitativo: 200
• Saggio: 99.9% trace metals basis
• Stato: solid
• Densità: 0.860 g/mL at 25 °C (lit.)
• applicazioni: battery manufacturing
• Stringa SMILE: [Li]N([Si](C)(C)C)[Si](C)(C)C
• InChI: 1S/C6H18NSi2.Li/c1-8(2,3)7-9(4,5)6;/h1-6H3;/q-1;+1; YNESATAKKCNGOF-UHFFFAOYSA-N

Descrizione

Descrizione generale

Lithium bis(trimethylsilyl)amide also known as lithium hexamethyldisilazide (LiHMDS) is a non-nucleophilic strong base. It exhibits ionic conductivity and is widely used as a lithium source and additive in electrolyte formulations for lithium-ion batteries.

Applicazioni

Lithium bis(trimethylsilyl)amide can be used:

• As an electrolyte additive for non-aqueous lithium metal batteries. LiHMDS acts as a scavenger for hydrofluoric acid and forms an electrochemical robust cathode|electrolyte interphase (CEI) and suppresses the side reactions with the electrolyte solution.[1]
• As a lithium precursor for atomic layer deposition(ALD) of textured Li₄Ti₅O₁₂ as anode material for Li-ion ultrafast charging thin-film batteries. It enables the controlled delivery of lithium atoms into the deposition process, leading to the growth of thin films with precise thickness and composition.[2]
• As a precursor to fabricate in situ lithiated quinone cathode as high-capacity organic electrode material for all-solid-state thin-film battery setup.[3]

Informazioni sulla sicurezza

• Pittogrammi: GHS02,GHS05
• Avvertenze: Danger
• Indicazioni di pericolo: H228,H251,H314
• Consigli di prudenza: P210 - P235 - P260 - P280 - P303 + P361 + P353 - P305 + P351 + P338
• Classi di pericolo: Eye Dam. 1 - Flam. Sol. 1 - Self-heat. 1 - Skin Corr. 1B
• Rischi supp: EUH014
• Codice della classe di stoccaggio: 4.2 - Pyrophoric and self-heating hazardous materials
• Classe di pericolosità dell'acqua (WGK): WGK 2
• Punto d’infiammabilità (°F): 62.6 °F - closed cup
• Punto d’infiammabilità (°C): 17 °C - closed cup