K3CrO4 — Properties & Data | MatWorld

K3CrO4

ceramic

· K3CrO4

Potassium chromate (K₃CrO₄) is an inorganic ionic ceramic compound composed of potassium cations and chromate anions, belonging to the family of chromate salts. While not commonly used as a primary structural ceramic, it functions as a specialized material in analytical chemistry, corrosion inhibition, and laboratory applications where its chemical reactivity and optical properties are exploited. Engineers encounter K₃CrO₄ primarily in protective coatings, corrosion inhibitor formulations, and as a laboratory reagent rather than as a load-bearing or thermal engineering material, making it a niche ceramic of interest in chemical processing and materials research rather than mainstream mechanical applications.

corrosion inhibitor additivesanalytical chemistry reagentprotective coatings formulationchromate conversion coatingslaboratory and diagnostic applicationschemical processing

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	36.94	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.4800	-	DFT · OptB88vdW
Shear Modulus(G)	6.230	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	2.632	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	0.000	eV	DFT · OptB88vdW
↳	3.550	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	17.28	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	6.510	-	DFT · TBmBJ
Magnetic Moment(μB)	1.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)2 entries	0.2835	C/m²	DFT · OptB88vdW
↳	1.213	C/m²	DFT · PBE
Piezoelectric Stress Tensor(eij)	Matrix (redacted)	C/m²	DFT · PBE
Thermoelectric Power Factor(PF)2 entries	0.000108	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.0000968	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	34.32	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	30.98	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	1.080	%	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)	0.000200	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-2.010	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.

K3CrO4

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental