FeS
metal· FeS
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.
energy storage and battery developmentmetallurgical processingcorrosion mechanism researchhigh-temperature thermal storageore beneficiationmaterials research and synthesis
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)2 entries | 4,317.2 | ksi | — | ||
| ↳ | 22,260.4 | ksi | — | ||
Exfoliation Energy(Eexf) | 85.46 | meV/atom | — | ||
Poisson's Ratio(ν) | 0.2900 | - | — | ||
Shear Modulus(G)2 entries | 2,684.1 | ksi | — | ||
| ↳ | 10,867.7 | ksi | — |
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) | 0.2155 | lb/in³ | — |
Verified Unverified Low confidence (<80%) Link to source
| 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 | — |
Verified Unverified Low confidence (<80%) Link to source
| 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 | — |
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
Export Control
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.