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Merck
CN

920398

Lithium bis(trimethylsilyl)amide

99.9% trace metals basis

Synonym(s):

LHMDS, LiHMDS, LiTMSA, Lithium hexamethyldisilazide, Hexamethyldisilazane lithium salt

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About This Item

Linear Formula:
[(CH3)3Si]2NLi
CAS Number:
Molecular Weight:
167.33
UNSPSC Code:
12352111
NACRES:
NA.22
MDL number:
Assay:
99.9% trace metals basis
Form:
solid
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Quality Level

assay

99.9% trace metals basis

form

solid

reaction suitability

core: lithium

density

0.860 g/mL at 25 °C (lit.)

application(s)

battery precursors
catalysts
material synthesis precursor

SMILES string

[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

InChI key

YNESATAKKCNGOF-UHFFFAOYSA-N

General description

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.

Application

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.
  • 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.
  • As a precursor to fabricate in situ lithiated quinone cathode as high-capacity organic electrode material for all-solid-state thin-film battery setup.


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pictograms

FlameCorrosion

signalword

Danger

Hazard Classifications

Eye Dam. 1 - Flam. Sol. 1 - Self-heat. 1 - Skin Corr. 1B

supp_hazards

Storage Class

4.2 - Pyrophoric and self-heating hazardous materials

wgk

WGK 2

flash_point_f

62.6 °F - closed cup

flash_point_c

17 °C - closed cup



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Lithium Phosphate Thin Films Grown by Atomic Layer Deposition.
Hamalainen J, et al.
Journal of the Electrochemical Society, 159(3), A259-A259 (2012)
Olesya Yarema et al.
Chemistry of materials : a publication of the American Chemical Society, 25(18), 3753-3757 (2014-04-22)
We report a simple, high-yield colloidal synthesis of copper indium selenide nanocrystals (CISe NCs) based on a silylamide-promoted approach. The silylamide anions increase the nucleation rate, which results in small-sized NCs exhibiting high luminescence and constant NC stoichiometry and crystal



Global Trade Item Number

SKUGTIN
775797-800ML04061837798832
703567-100ML04061832821535
775797-100ML04061832932897
775797-4X25ML04061832933412
920398-1G04065265945479
920398-100G04065265945462
920398-25G04065265945486