MgI2 — Properties & Data | MatWorld

MgI2

Name: MgI2
Brand: MatWorld

ceramic

· MgI2

Magnesium iodide (MgI₂) is an inorganic halide ceramic compound composed of magnesium and iodine. It is primarily of research and specialized industrial interest rather than a mainstream structural material, with applications driven by its ionic conductivity, optical transparency, and hygroscopic properties. MgI₂ is explored in solid-state electrolytes for advanced batteries, optoelectronic devices, and as a precursor in specialized chemical synthesis; it is notably sensitive to moisture and requires controlled environments, making it distinct from more robust ceramics used in load-bearing or high-temperature applications.

solid-state battery electrolytesoptical and photonic materialslaboratory reagents and precursorsionic conductor researchspectroscopic applicationsexperimental energy storage devices

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	20.17	GPa	DFT · OptB88vdW
Exfoliation Energy(Eexf)	82.06	meV/atom	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2600	-	DFT · OptB88vdW
Shear Modulus(G)	11.98	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	4.480	kg/m³	DFT · OptB88vdW

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

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)3 entries	3.625	eV	DFT · OptB88vdW
↳	4.821	eV	DFT · TBmBJ
↳	4.460	eV	DFT · HSE06
Dielectric Constant (Relative Permittivity)(εr)2 entries	9.308	-	DFT · OptB88vdW
↳	6.720	-	DFT · PBE
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	4.651	-	DFT · OptB88vdW
↳	3.680	-	DFT · TBmBJ
Electronic Dielectric Tensor(ε∞)	Matrix (redacted)	-	DFT · PBE
Total Dielectric Tensor(ε)	Matrix (redacted)	-	DFT · PBE
Electron Effective Mass(m*e)	0.8767	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	2.423	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00358	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00153	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-271.9	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	339.7	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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Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-1.126	eV/atom	DFT · OptB88vdW
↳	-1.268	eV/atom	Measured

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.

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.

MgI2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental