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237965

Sigma-Aldrich

Lithium fluoride

greener alternative

powder, -300 mesh

Synonym(s):

Fluorolithium

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About This Item

Linear Formula:
LiF
CAS Number:
7789-24-4
Molecular Weight:
25.94
EC Number:
232-152-0
MDL number:
MFCD00011090
UNSPSC Code:
12352302
PubChem Substance ID:
24854280
NACRES:
NA.23
form:
powder

form

powder

Quality Level

200

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Design for Energy Efficiency
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particle size

-300 mesh

mp

845 °C (lit.)

density

2.64 g/mL at 25 °C (lit.)

greener alternative category

Enabling

SMILES string

[Li+].[F-]

InChI

1S/FH.Li/h1H;/q;+1/p-1

InChI key

PQXKHYXIUOZZFA-UHFFFAOYSA-M

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General description

Lithium fluoride (LiF) is a highly versatile compound with a wide range of applications in research and development. Its unique physical and chemical properties make it suitable for use in optical components, battery technology, nuclear applications, ceramics, glasses, optoelectronics, metallurgy, thermoluminescent dosimeters, catalysis, environmental research, and biomedical applications.

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Application

Lithium Fluoride (LiF) can be used as an additive in electrolytes for lithium-ion batteries to enhance thermal stability and overall battery performance. Applied as a thin film on electrodes to improve their stability and lifespan by preventing degradation during cycling. LiF is a crucial component of the anode interface film due to its high-modulus shell, which can prevent LixSi pulverization, and its high chemical stability, which effectively suppresses side reactions at the interface. LiF is used in nuclear reactors and radiation detectors due to its low neutron cross-section and ability to capture neutrons, making it suitable for neutron shielding and detection.

Lithium fluoride (LiF) can be used as a sintering aid that facilitates the etching of spinel particles for the degradation of magnesium aluminum spinel. It can be used in the preparation of carbon-iron LiF nanocomposite based electrode materials for lithium-ion batteries. It can also form thin interlayers on the counter electrode to enhance the fill factor and stabilize the high open-circuit voltages for polymer solar cells.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H302,H319

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2

Supplementary Hazards

EUH032

Storage Class Code

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCX1226
0000352455
MKCW7255
MKCV5820
0000352455

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A ferrocene-based carbon-iron lithium fluoride nanocomposite as a stable electrode material in lithium batteries
Prakash R, et al.
Journal of Materials Chemistry, 20(10), 1871-1876 (2010)
Effect of LiFmetal electrodes on the performance of plastic solar cells
Brabec CJ, et al.
Applied Physics Letters, 80(7), 1288-1290 (2002)
Degradation of magnesium aluminum spinel by lithium fluoride sintering aid
Villalobos GR, et al.
Journal of the American Ceramic Society. American Ceramic Society, 88(5), 1321-1322 (2005)
Fluorescent detection of single tracks of alpha particles using lithium fluoride crystals
Bilski P and Marczewska B
Nuclear Instruments & Methods in Physics Research. Section B, Beam Interactions With Materials and Atoms, 392, 41-45 (2017)
Asa Carlsson Tedgren et al.
Medical physics, 38(10), 5539-5550 (2011-10-14)
High energy photon beams are used in calibrating dosimeters for use in brachytherapy since absorbed dose to water can be determined accurately and with traceability to primary standards in such beams, using calibrated ion chambers and standard dosimetry protocols. For
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