MgCr4O9 — Properties & Data | MatWorld

MgCr4O9

ceramic

· JVASP-30527· MgCr4O9

MgCr₄O₉ is a magnesium chromium oxide ceramic compound belonging to the mixed-metal oxide family. This material is primarily of research interest for high-temperature and corrosion-resistant applications, though it remains less commonly specified in mainstream industrial use compared to conventional refractories like alumina or magnesia spinel. Engineers would consider this compound for specialized environments requiring combined thermal stability and chromium's oxidation resistance, particularly in metallurgical processing or harsh chemical atmospheres where standard ceramics may degrade.

high-temperature refractoriesmetallurgical processingcorrosion-resistant coatingsresearch and developmentoxidation barriers

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	3.932	kg/m³	DFT · OptB88vdW

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.01400	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	76.57	-	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000503	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000453	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	22.52	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	27.75	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)	0.2511	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.992	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.

MgCr4O9

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental