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409324

Sigma-Aldrich

Aluminum iodide

anhydrous, powder, 99.999% trace metals basis

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Synonym(s):
Aluminum triiodide, Aluminum(III) iodide
Linear Formula:
AlI3
CAS Number:
7784-23-8
Molecular Weight:
407.70
EC Number:
232-054-8
MDL number:
MFCD00003427
UNSPSC Code:
12352302
PubChem Substance ID:
24865636
NACRES:
NA.23

grade

anhydrous

Quality Level

200

vapor pressure

1 mmHg ( 178 °C)

Assay

99.999% trace metals basis

form

powder

impurities

≤15.0 ppm Trace Metal Analysis

bp

360 °C (lit.)

mp

191 °C (lit.)

density

3.98 g/mL at 25 °C (lit.)

application(s)

battery manufacturing

SMILES string

I[Al](I)I

InChI

1S/Al.3HI/h;3*1H/q+3;;;/p-3

InChI key

CECABOMBVQNBEC-UHFFFAOYSA-K

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General description

Aluminum iodide (AlI3) is a strong Lewis acid that is used as an electrolyte additive in electrochemical energy storage and conversion devices.

Application

Aluminum iodide can be used as:
  • An electrolyte additive for the pretreatment of Li metal electrodes. The addition of AlI3 provides a durable Li interface with high Li cyclability.
  • A homogeneous redox mediator for rechargeable Al-CO2batteries with high discharge voltage and a high capacity. These secondary batteries are promising rechargeable systems for future grid energy storage applications.

accessory

Product No.
Description
Pricing

Pictograms

Corrosion
GHS05

Signal Word

Danger

Hazard Statements

H314

Hazard Classifications

Eye Dam. 1 - Skin Corr. 1B

WGK

WGK 3

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Cheap and Environmentally Benign Electrochemical Energy Storage and Conversion Devices Based on AlI3 Electrolytes
Bofei Xue, et al.
Journal of the American Chemical Society, 128, 8720-8721 (2006)
Pretreatment of Li metal anode with electrolyte additive for enhancing Li cycleability
Masashi Ishikawa, et al.
Journal of Power Sources, 146, 199-203 (2005)
A Secondary Al?CO2 Battery Enabled by Aluminum Iodide as a Homogeneous Redox Mediator
Christopher Fetrow, et al.
ACS Applied Materials & Interfaces, 15, 12908-12914 (2023)

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