Cs2O
ceramic· Cs2O
Cesium oxide (Cs₂O) is an ionic ceramic compound belonging to the alkali metal oxide family, characterized by a highly basic and hygroscopic nature. While primarily of research and specialized industrial interest rather than widespread engineering use, Cs₂O serves niche applications in photomultiplier tubes, optical coatings, and catalytic systems where its strong oxidizing properties and low work function are advantageous; it is notably more reactive and moisture-sensitive than other alkali oxides, making handling and integration into devices technically challenging compared to conventional ceramics.
photomultiplier tube cathodesvacuum electronicsspecialized optical coatingscatalyst precursorsresearch materials
Compliance & Regulations
?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Dielectric Constant (Relative Permittivity)(εr) | — median of 2 measurements | - | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Formation Energy(ΔHf) | — | eV/atom | — | — |
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
Environmental
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.