Cs2S

ceramic

· Cs2S

Cesium sulfide (Cs₂S) is an ionic ceramic compound belonging to the alkali metal sulfide family, characterized by a rock salt crystal structure with strong ionic bonding between cesium cations and sulfide anions. While primarily of research and academic interest rather than established industrial production, Cs₂S has potential applications in advanced optics, scintillation detectors, and solid-state ionics due to the high polarizability of cesium and the wide bandgap typical of sulfide ceramics. The material remains relatively unexplored for commercial use compared to more stable alkaline-earth sulfides, making it most relevant to specialists in niche photonic applications or fundamental materials research.

scintillation detectorsresearch opticssolid-state ionicsspecialized ceramicsphotonic materials

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions	Source
Dielectric Constant (Relative Permittivity)(εr)	7.623 range 4.186–11.06median of 2 measurements	-	—

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.

Cs2S

Electrical Properties

Regulatory Screening

Environmental