FePO4 — Properties & Data | MatWorld

FePO4

ceramic

· FePO4

Iron phosphate (FePO4) is an inorganic ceramic compound with potential applications in battery technology, catalysis, and advanced materials research. Structurally related to phosphate ceramics, FePO4 is primarily investigated as a cathode material for lithium-ion batteries and as a host framework for ion-exchange applications, where its rigid crystal structure provides stability during electrochemical cycling. While not yet widely deployed in high-volume manufacturing compared to conventional lithium iron phosphate (LiFePO4), FePO4 continues to attract research interest for niche applications requiring chemical stability, thermal resilience, or specific ionic conductivity characteristics.

battery research and developmentlithium-ion cathode materialscatalytic supportsion-exchange ceramicshigh-temperature applicationsadvanced materials research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	2,500.5	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2000	-	DFT · OptB88vdW
Shear Modulus(G)	1,811.5	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1346	lb/in³	DFT · OptB88vdW

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Filter by

Method

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.000	eV	DFT · OptB88vdW
↳	1.181	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	6.704	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	3.651	-	DFT · TBmBJ
Magnetic Moment(μB)	5.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)2 entries	0.5027	C/m²	DFT · OptB88vdW
↳	0.1505	C/m²	DFT · PBE
Piezoelectric Stress Tensor(eij)	Matrix (redacted)	C/m²	DFT · PBE
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	33.76	%	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)	0.01500	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.867	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.

FePO4

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental