Na4CrO3

ceramic

· JVASP-42559· Na4CrO3

Na₄CrO₃ is an inorganic ceramic compound containing sodium, chromium, and oxygen, belonging to the family of chromate ceramics. This material is primarily of research and specialized industrial interest rather than a mainstream engineering material; it appears in contexts involving chromium-based functional ceramics, particularly where chromate chemistry and ionic conductivity or catalytic properties may be relevant. Engineers would evaluate this compound for niche applications requiring specific chromium oxide chemistry or in development of advanced ceramic systems, though it remains relatively uncommon compared to standard industrial ceramics.

chromate catalystsionic conductor researchspecialty ceramics developmentchemical processing compoundsexperimental functional ceramics

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.09541	lb/in³	DFT · OptB88vdW

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.4110	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)	15.31	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	12.83	-	DFT · OptB88vdW
Electron Effective Mass(m*e)	0.5700	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.6767	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	4.015	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.1474	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000389	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000901	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-251.2	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	240.3	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)	0.07180	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.525	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.

Na4CrO3 — Properties & Data | MatWorld

Na4CrO3

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental