Mg3H2O4 — Properties & Data | MatWorld

Mg3H2O4

ceramic

· JVASP-13095· Mg3H2O4

Mg3H2O4 is a magnesium hydride oxide ceramic compound that belongs to the family of mixed-valence metal hydrides and hydroxides. This is primarily a research material rather than a mature commercial ceramic, studied for its potential in hydrogen storage, energy applications, and lightweight structural systems due to magnesium's inherent abundance and low density. Interest in this compound stems from the broader exploration of metal hydrides for clean energy technologies and advanced materials, where layered magnesium compounds can offer tunable mechanical and hydrogen-related properties compared to conventional ceramics.

hydrogen storage researchlightweight structural compositesenergy storage systemsmetal hydride researchadvanced functional ceramicsaerospace weight reduction

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	87.40	GPa	DFT · OptB88vdW
Exfoliation Energy(Eexf)	29.35	meV/atom	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2200	-	DFT · OptB88vdW
Shear Modulus(G)	62.30	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	2.940	kg/m³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)3 entries	4.250	eV	DFT · OptB88vdW
↳	6.327	eV	DFT · TBmBJ
↳	5.360	eV	DFT · HSE06
Dielectric Constant (Relative Permittivity)(εr)	10.46	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	2.880	-	DFT · OptB88vdW
↳	2.340	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000517	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00105	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-63.47	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	323.9	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)	0.03040	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-2.345	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.

Mg3H2O4

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental