Ca2 Co4 S8

semiconductor
· Ca2 Co4 S8

Ca₂Co₄S₈ is a ternary sulfide semiconductor compound combining calcium, cobalt, and sulfur elements, belonging to the thiospinel or related sulfide mineral family. This material is primarily of research interest for photocatalytic applications, energy storage systems, and potential optoelectronic devices, where its semiconducting properties and mixed-metal composition offer advantages in catalytic activity and charge transport compared to single-element sulfide alternatives. While not yet widely commercialized, thiospinels and related cobalt-calcium sulfides are being investigated as promising candidates for water splitting, environmental remediation, and next-generation battery or supercapacitor electrode materials.

photocatalytic water treatmenthydrogen generation catalystsenergy storage electrodesoptoelectronic research devicesenvironmental remediationmaterials research and development

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Bulk Modulus(K)
13,150.1
ksi—
Shear Modulus(G)
3,182.1
ksi—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
0.7885
eV—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Formation Energy(ΔHf)
-0.7840
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.
Ca2 Co4 S8 — Properties & Data | MatWorld