MgBr2 — Properties & Data | MatWorld

MgBr2

Name: MgBr2
Brand: MatWorld

ceramic

· MgBr2

Magnesium bromide (MgBr2) is an ionic ceramic compound consisting of magnesium cations bonded to bromide anions, belonging to the halide ceramic family. While primarily known as a laboratory and industrial chemical reagent for organic synthesis and dehydrating agent applications, MgBr2 and related layered halide materials are increasingly studied in materials research for potential applications in energy storage, optoelectronics, and layered material devices due to their crystal structure and ionic properties. Engineers considering this material should recognize it is not a traditional structural ceramic but rather a functional material of growing interest in emerging technologies where its chemical reactivity and layered characteristics can be exploited.

Chemical reagent and dehydrating agentHalide crystal researchBattery and energy storage (emerging)Optoelectronic materials (research phase)Layered material devicesIonic conductor applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	24.21	GPa	DFT · OptB88vdW
Exfoliation Energy(Eexf)	71.93	meV/atom	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2700	-	DFT · OptB88vdW
Shear Modulus(G)	14.53	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	3.827	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	4.478	eV	DFT · OptB88vdW
↳	6.238	eV	DFT · TBmBJ
↳	5.480	eV	DFT · HSE06
Dielectric Constant (Relative Permittivity)(εr)2 entries	7.449	-	DFT · OptB88vdW
↳	5.920	-	DFT · PBE
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	3.717	-	DFT · OptB88vdW
↳	2.942	-	DFT · TBmBJ
Electronic Dielectric Tensor(ε∞)	Matrix (redacted)	-	DFT · PBE
Total Dielectric Tensor(ε)	Matrix (redacted)	-	DFT · PBE
Electron Effective Mass(m*e)	0.3500	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	2.590	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	0.000607	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00134	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-86.14	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	304.2	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	-1.596	eV/atom	DFT · OptB88vdW
↳	-1.811	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.

MgBr2

Mechanical Properties

Physical Properties

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Other Properties

Regulatory Screening

Environmental