LiF
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
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)3 entries | 69.88 | GPa | — | ||
| ↳ | 69.88 | GPa | — | ||
| ↳ | 73.93 | GPa | — | ||
Elastic Compliance Tensor(Sij) | Matrix (redacted) | 1/GPa | — | ||
Elastic Anisotropy(AU) | 0.1587 | - | — | ||
Elastic Stiffness Tensor(Cij) | Matrix (redacted) | Pa | — | ||
Poisson's Ratio(ν)2 entries | 0.2068 | - | — | ||
| ↳ | 0.2100 | - | — | ||
Shear Modulus(G)3 entries | 50.94 | GPa | — | ||
| ↳ | 50.94 | GPa | — | ||
| ↳ | 55.28 | GPa | — |
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.
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 2.662 | kg/m³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 11.70 | eV | — | ||
| ↳ | 9.479 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr)2 entries | 8.817 | - | — | ||
| ↳ | 5.697 range 2.083–9.311median of 2 measurements | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | — | ||
Seebeck Coefficient(S) | -189.6 | µV/K | — |
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.
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.03590 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -3.197 | eV/atom | — | ||
| ↳ | -3.155 | eV/atom | — |
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.
Verified Unverified Low confidence (<80%) Link to source
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.