Mg3As2O8 — Properties & Data | MatWorld

Mg3As2O8

ceramic

· JVASP-50589· Mg3As2O8

Mg3As2O8 is an inorganic ceramic compound belonging to the magnesium arsenate family, characterized by a mixed-valence magnesium and arsenic oxide structure. This material is primarily of research and specialized industrial interest rather than widespread commercial use; potential applications include high-temperature refractories, electronic ceramics, and specialized inorganic binders where arsenic-containing phases are tolerated or specifically required. Engineers would consider this compound in niche contexts such as semiconductor processing environments or specialized chemical engineering applications where its thermal stability and chemical composition offer advantages over conventional magnesium oxides or other oxide ceramics.

Refractory ceramicsElectronic/semiconductor applicationsHigh-temperature materials researchSpecialized inorganic compoundsChemical processing environments

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	3.311	kg/m³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	3.897	eV	DFT · OptB88vdW
↳	5.889	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	2.986	-	DFT · OptB88vdW
↳	1.851	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000775	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000341	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-119.6	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	487.6	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	0.000	%	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)	-2.165	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.

Mg3As2O8

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental