Ta2SnO7

ceramic

· JVASP-14264· Ta2SnO7

Ta₂SnO₇ is a pyrochlore-structure ceramic compound combining tantalum and tin oxides, belonging to the family of mixed-metal oxides studied for their electrochemical and thermal properties. This material is primarily investigated in research contexts for applications requiring chemical stability and high-temperature performance, particularly in electrochemistry, catalysis, and as a potential thermal barrier or dielectric component. Its appeal lies in combining the refractory characteristics of tantalum oxides with the electrochemical activity of tin-based phases, making it of interest where conventional single-metal oxide ceramics show limitations.

electrochemical sensors and catalysisthermal barrier coatings (research)high-temperature dielectric applicationscorrosion-resistant coatingsadvanced ceramic composites

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.3350	lb/in³	DFT · OptB88vdW

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	1.657	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	7.017	-	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00108	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000830	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-189.5	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	356.8	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C

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)	0.1479	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-2.521	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.

Ta2SnO7 — Properties & Data | MatWorld

Ta2SnO7

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental