Iron sulfide (FeS) is a binary transition metal compound that exists in several crystallographic phases, most commonly as troilite (hexagonal) or pyrrhotite (monoclinic variants). It serves primarily as a precursor material and intermediate in metallurgical processes, ore roasting, and chemical synthesis rather than as a finished engineering material in load-bearing applications. FeS is of significant interest in battery research, particularly for high-temperature thermal energy storage and emerging solid-state battery chemistries, and appears in geochemistry and corrosion studies due to its natural occurrence in sulfide mineral deposits and its role in sulfidic corrosion of steel infrastructure.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)2 entries | 29.77 | GPa | — | ||
| ↳ | 153.5 | GPa | — | ||
Exfoliation Energy(Eexf) | 85.46 | meV/atom | — | ||
Poisson's Ratio(ν) | 0.2900 | - | — | ||
Shear Modulus(G)2 entries | 18.51 | GPa | — | ||
| ↳ | 74.93 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 5.965 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 56.07 | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | — | ||
Seebeck Coefficient(S) | -0.06000 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.2007 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -0.5269 | eV/atom | — | ||
| ↳ | -0.3806 | eV/atom | — |