AlI3

metal
· AlI3

Aluminum triiodide (AlI₃) is a layered ionic-covalent compound belonging to the aluminum halide family, with a layered crystal structure that exhibits weak interlayer bonding. While not widely deployed in structural engineering applications, AlI₃ has attracted research interest as a precursor material for aluminum-based semiconductors, as a Lewis acid catalyst in organic synthesis, and as a potential exfoliable material for two-dimensional layer isolation studies. Engineers considering this compound should recognize it primarily as a specialty chemical or research material rather than a load-bearing or conventional functional material; its utility lies in niche applications requiring controlled reactivity, layer exfoliation, or specific electronic/ionic properties rather than bulk mechanical performance.

organic synthesis catalysishalide precursor chemistrytwo-dimensional materials researchsemiconductor processingLewis acid applicationsexperimental layered materials

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Bulk Modulus(K)
1,319.8
ksi—
Exfoliation Energy(Eexf)
120.5
meV/atom—
Poisson's Ratio(ν)
0.2400
-—
Shear Modulus(G)
916.6
ksi—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Density(ρ)
0.1487
lb/in³—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
3.017
eV—
Dielectric Constant (Relative Permittivity)(εr)
5.322
-—
Magnetic Moment(μB)
0.000
µB—
Piezoelectric Modulus(eij)
0.000
C/m²—
Seebeck Coefficient(S)
-324.5
µV/K—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Energy Above Hull(ΔEhull)
0.000600
eV/atom—
Formation Energy(ΔHf)2 entries
-0.7849
eV/atom—
↳
-0.6785
eV/atom—
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.
Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Export Control

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.