MgCl2 — Properties & Data | MatWorld

MgCl2

Name: MgCl2
Brand: MatWorld

ceramic

· MgCl2

Magnesium chloride (MgCl₂) is an inorganic ionic ceramic compound that exists primarily as a hydrated salt in industrial applications, though anhydrous forms are used in specialized contexts. It serves as a raw material and processing agent across chemical, construction, and de-icing industries, valued for its hygroscopic properties and ability to form stable complexes. Engineers select MgCl₂ for applications requiring chloride sources, magnesium ion release, or its capacity to modify material properties—such as dust suppression on unpaved roads, cement additives for magnesium oxychloride cements, and as an electrolyte precursor in magnesium extraction and battery technologies.

de-icing and dust controlmagnesium oxychloride cementmagnesium metal productionelectrolyte formulationschemical processing feedstock

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	40.11	GPa	DFT · OptB88vdW
Exfoliation Energy(Eexf)	98.40	meV/atom	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3800	-	DFT · OptB88vdW
Shear Modulus(G)	17.19	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	2.046	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)2 entries	5.626	eV	DFT · OptB88vdW
↳	8.288	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)2 entries	7.552	-	DFT · OptB88vdW
↳	5.220	-	DFT · PBE
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	3.209	-	DFT · OptB88vdW
↳	2.677	-	DFT · TBmBJ
Electronic Dielectric Tensor(ε∞)	Matrix (redacted)	-	DFT · PBE
Total Dielectric Tensor(ε)	Matrix (redacted)	-	DFT · PBE
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000760	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000763	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00132	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-103.5	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	313.3	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)	0.2173	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-1.767	eV/atom	DFT · OptB88vdW
↳	-2.217	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.

MgCl2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental