LiF — Properties & Data | MatWorld

LiF

Name: LiF
Brand: MatWorld

ceramic

· LiF

Lithium fluoride (LiF) is an inorganic ceramic compound that forms a cubic crystalline structure with high ionic bonding. It is primarily used in optical and thermal applications where transparency, chemical inertness, and thermal stability are critical, particularly in infrared spectroscopy windows, laser optics, and specialized detector systems. LiF is chosen over alternative optical ceramics when broadband IR transmission, high UV resistance, and extreme chemical durability are required, though its hygroscopic nature and higher cost limit its use to applications where these performance advantages justify the premium.

infrared optics and windowslaser systems and opticsspectroscopy instrumentationthermal and radiation detectionsemiconductor processingnuclear and particle physics detectors

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Filter by

Method

Property	Value	Unit	Conditions
Bulk Modulus(K)3 entries	10,135.4	ksi	DFT
↳	10,722.6	ksi	DFT · OptB88vdW
↳	10,135.4	ksi	DFT · PBE
Elastic Compliance Tensor(Sij)	Matrix (redacted)	1/GPa	DFT · PBE
Elastic Anisotropy(AU)	0.1587	-	DFT · PBE
Elastic Stiffness Tensor(Cij)	Matrix (redacted)	ksi	DFT · PBE
Poisson's Ratio(ν)2 entries	0.2100	-	DFT · OptB88vdW
↳	0.2068	-	DFT · PBE
Shear Modulus(G)3 entries	7,388.7	ksi	DFT
↳	8,017.7	ksi	DFT · OptB88vdW
↳	7,388.7	ksi	DFT · PBE

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Density(ρ)	0.09617	lb/in³	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Filter by

Method

Property	Value	Unit	Conditions
Band Gap(Eg)3 entries	9.301	eV	DFT · OptB88vdW
↳	12.31	eV	DFT · TBmBJ
↳	11.70	eV	Measured
Dielectric Constant (Relative Permittivity)(εr)2 entries	8.817	-	DFT · OptB88vdW
↳	5.697 range 2.083–9.311median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	2.055	-	DFT · OptB88vdW
↳	1.724	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	0.000	%	DFT · TBmBJ

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

Verified Unverified Low confidence (<80%) Link to source

Filter by

Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.03590	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-3.155	eV/atom	DFT · OptB88vdW
↳	-3.197	eV/atom	Measured

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

Verified Unverified Low confidence (<80%) Link to source

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

Regulatory Screening

Environmental

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.

LiF

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental