Ac2S3 — Properties & Data | MatWorld

Ac2S3

Name: Ac2S3
Brand: MatWorld

ceramic

· JVASP-38754· Ac2S3

Ac2S3 (actinium sesquisulfide) is an inorganic ceramic compound belonging to the rare-earth and actinide chalcogenide family. This material is primarily of research and scientific interest rather than established industrial production, studied for its crystal structure, electronic properties, and potential applications in nuclear materials science and specialized ceramics. Engineers and materials scientists may encounter Ac2S3 in academic contexts or advanced nuclear fuel research, where actinide compounds are investigated for their unique physical and chemical behavior under extreme conditions.

nuclear materials researchactinide compound studiesceramic phase diagramssolid-state chemistryhigh-temperature characterizationspecialized refractory applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	5.613	kg/m³	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	3.124	eV	DFT · OptB88vdW
↳	3.979	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)	4.292	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00219	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000581	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-396.9	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	423.2	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	0.03000	%	DFT · TBmBJ

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-2.278	eV/atom	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

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.

Ac2S3

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental