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230014

Sigma-Aldrich

Zinc iodide

≥99.99% trace metals basis

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Synonym(s):
Diiodozinc, Zinc diiodide
Linear Formula:
ZnI2
CAS Number:
Molecular Weight:
319.20
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

Quality Level

assay

≥99.99% trace metals basis

form

crystalline

reaction suitability

reagent type: catalyst
core: zinc

impurities

≤100.0 ppm Trace Metal Analysis

mp

445 °C (lit.)

density

4.74 g/mL at 25 °C (lit.)

SMILES string

I[Zn]I

InChI

1S/2HI.Zn/h2*1H;/q;;+2/p-2

InChI key

UAYWVJHJZHQCIE-UHFFFAOYSA-L

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1 of 4

This Item
223883229997324930
vibrant-m

230014

Zinc iodide

vibrant-m

223883

Zinc iodide

vibrant-m

229997

Zinc chloride

vibrant-m

324930

Zinc

assay

≥99.99% trace metals basis

assay

≥98%

assay

99.999% trace metals basis

assay

99.995% trace metals basis

Quality Level

100

Quality Level

200

Quality Level

200

Quality Level

200

impurities

≤100.0 ppm Trace Metal Analysis

impurities

-

impurities

≤15.0 ppm Trace Metal Analysis

impurities

-

mp

445 °C (lit.)

mp

445 °C (lit.)

mp

293 °C (lit.)

mp

420 °C (lit.)

density

4.74 g/mL at 25 °C (lit.)

density

4.74 g/mL at 25 °C (lit.)

density

-

density

7.133 g/mL at 25 °C (lit.)

General description

Zinc iodide is a faint yellow solid that absorbs water readily. It is synthesized using metallic zinc with an aqueous iodine solution. It is used as a Lewis acid for organic conversion.

Application

Zinc iodide can be used as:
  • An electrolyte in Zinc-iodine redox flow batteries.
  • An additive to prepare air-stable cationic lead perovskite films. The addition of ZnI2 enhances the film stability and photoluminescence without affecting the bandgap.
  • As a precursor to prepare efficient, eco-friendly, and high color purity inkjet-printed blue InP/ZnS/ZnS quantum dot light-emitting diodes.
  • A catalyst in promoting various chemical transformations, for example, in the direct synthesis of 2,3-Dihydroisoxazoles via a [3+2] cycloaddition reaction of the nitrones and terminal alkynes.
  • An activator/initiator in living cationic polymerization reactions.

pictograms

Exclamation markEnvironment

signalword

Warning

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Eye Irrit. 2 - Skin Irrit. 2

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges


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Zinc Iodide-Mediated Direct Synthesis of 2,3-Dihydroisoxazoles from Alkynes and Nitrones
Zu-Feng Xiao, et al.
advanced synthesis and catalysis, 358, 1859-1863 (2016)
Metal?Organic Frameworks as Highly Active Electrocatalysts for High-Energy Density, Aqueous Zinc-Polyiodide Redox Flow Batteries
Bin Li, et al.
Nano Letters, 16, 4335-4340 (2016)
Inkjet-printed blue InP/ZnS/ZnS quantum dot light-emitting diodes
Zhiwen Yang, et al.
Chemical Engineering Journal, 450, 138413-138413 (2022)
Influence of type of zinc salts on photoinitiated living cationic polymerization of vinyl ethers
Muhammet U. Kahveci, et al.
Polymer, 54, 4798-4801 (2013)
Air-Stable and Oriented Mixed Lead Halide Perovskite (FA/MA) by the One-Step Deposition Method Using Zinc Iodide and an Alkylammonium Additive
Loreta A. Muscarella, et al.},
ACS Applied Materials & Interfaces, 11, 17555-17562 (2019)

Articles

Colloidal quantum dots (CQDs) are semiconducting crystals of only a few nanometers (ca. 2–12 nm) coated with ligand/surfactant molecules to help prevent agglomeration.

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