BeI2 — Properties & Data | MatWorld

BeI2

Name: BeI2
Brand: MatWorld

ceramic

· BeI2

Beryllium iodide (BeI₂) is an inorganic ceramic compound combining beryllium metal with iodine, belonging to the halide ceramic family. This material is primarily of research and academic interest rather than established in commercial engineering applications; it appears in solid-state chemistry studies and theoretical materials science work exploring beryllium halide properties. BeI₂ is notable within materials science for investigating beryllium compound behavior and crystal structure, though practical engineering use is limited due to the chemical reactivity of halide ceramics and the toxicity constraints associated with beryllium handling.

materials research (halide ceramics)solid-state chemistry studiestheoretical crystal structure analysisberyllium compound characterizationlaboratory/academic applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	11.21	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2500	-	DFT · OptB88vdW
Shear Modulus(G)	7.410	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	4.279	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	4.039	eV	DFT · OptB88vdW
↳	4.770	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)2 entries	6.416	-	DFT · OptB88vdW
↳	3.970	-	DFT · PBE
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	4.291	-	DFT · OptB88vdW
↳	3.638	-	DFT · TBmBJ
Electronic Dielectric Tensor(ε∞)	Matrix (redacted)	-	DFT · PBE
Total Dielectric Tensor(ε)	Matrix (redacted)	-	DFT · PBE
Electron Effective Mass(m*e)	1.000	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	2.223	me	DFT · OptB88vdW · 27°C
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00172	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00150	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-238.3	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	378.6	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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Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-0.5866	eV/atom	DFT · OptB88vdW
↳	-0.6519	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.

BeI2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental