Fe₃S₄ is an iron sulfide compound that exists as a mixed-valence ferrous-ferric sulfide, representing an intermediate phase in the iron-sulfur system. While not widely used as a primary engineering material in current industrial practice, Fe₃S₄ is primarily encountered in corrosion science, pyrometallurgy, and materials research contexts where it forms as a corrosion product on steel in sulfurous environments or as a phase in roasted sulfide ore processing. Engineers may encounter this compound when analyzing failure mechanisms in high-temperature sulfidation, designing corrosion-resistant alloys for sour gas applications, or studying iron sulfide phase chemistry in mineral processing operations.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 74.89 | GPa | — | ||
Poisson's Ratio(ν) | 0.4000 | - | — | ||
Shear Modulus(G) | 23.11 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 4.814 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | — | ||
Magnetic Moment(μB) | 2.400 | µB | — | ||
Seebeck Coefficient(S) | 26.33 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.2036 | eV/atom | — | ||
Formation Energy(ΔHf) | -0.4008 | eV/atom | — |