KCuS
metal· KCuS
KCuS is an intermetallic compound composed of potassium, copper, and sulfur, representing an experimental material from the metal sulfide family rather than a conventional engineering alloy. While not established in mainstream industrial production, compounds in this chemical family are of research interest for electrochemical applications, solid-state battery systems, and semiconductor-related technologies where tailored ionic and electronic conductivity are valued. Engineers would consider KCuS primarily in early-stage development contexts where novel material properties—such as mixed-valence transitions or layered ionic structures—address specific performance gaps that conventional metals or ceramics cannot fill.
solid-state battery researchelectrochemical devices (experimental)semiconductor interfaces (R&D)sulfide-based compoundsionic conductor investigation
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 19.62 | GPa | — | ||
Poisson's Ratio(ν) | 0.3800 | - | — | ||
Shear Modulus(G) | 5.870 | GPa | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 2.564 | kg/m³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 1.963 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 5.216 range 4.039–6.393median of 2 measurements | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Seebeck Coefficient(S) | -198.5 | µV/K | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.00850 | eV/atom | — | ||
Formation Energy(ΔHf) | -0.8377 | eV/atom | — |
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.