Tl3PO4 — Properties & Data | MatWorld

Tl3PO4

ceramic

· JVASP-9734· Tl3PO4

Thallium phosphate (Tl₃PO₄) is an inorganic ceramic compound composed of thallium and phosphate ions, belonging to the class of phosphate ceramics. This material is primarily of research interest rather than established commercial use, with potential applications in ionic conductivity studies, solid-state electrolytes, and specialized optical or electronic materials. Engineers considering this compound should note that thallium's toxicity presents significant handling, environmental, and regulatory constraints that limit practical deployment compared to alternative phosphate ceramics.

solid-state electrolytes (research phase)ionic conductorsoptical materials (specialized)high-density ceramicsmaterials science research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	16.60	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2100	-	DFT · OptB88vdW
Shear Modulus(G)	11.90	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	7.410	kg/m³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	2.698	eV	DFT · OptB88vdW
↳	3.723	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	18.28	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	3.829	-	DFT · TBmBJ
↳	4.911	-	DFT · OptB88vdW
Electron Effective Mass(m*e)	0.5433	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	2.670	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.6355	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00192	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00101	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-260.5	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	287.7	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	0.5000	%	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)	-1.622	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.

Tl3PO4

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental