Zinc iodide
Zinc iodide (ZnI2, CAS: 10139-47-6) is a white crystalline solid with a molecular weight of 319.20 g/mol. This inorganic salt is recognised for its utility in chemical synthesis and catalysis. Its high purity assay of ≥99.99% trace metals basis makes it a reliable choice for demanding research and industrial applications. Zinc iodide is an essential chemical that finds use across various scientific disciplines, including materials science and inorganic chemistry.
- IUPAC
- Diiodozinc,Zinc diiodide

Catalysis
Zinc iodide serves as a Lewis acid catalyst in various organic transformations. Its properties make it effective in promoting specific reactions within synthetic chemistry.
Chemical Synthesis
It is employed as a reagent in the synthesis of complex organic molecules. Zinc iodide can be incorporated into reaction pathways requiring a zinc source or iodide counterion.
Materials Science
As a component in inorganic materials, zinc iodide contributes to the development of novel substances. Its crystalline nature is beneficial for specific material applications.
Research and Development
This compound is a valuable tool for researchers exploring new chemical reactions and material properties. Its defined purity supports reproducible experimental outcomes.
| Molecular weight | 319.20 |
|---|---|
| Linear formula | ZnI2 |
| Assay | ≥99.99% trace metals basis |
| Form | crystalline |
| Density | 4.74 g/mL at 25 °C(lit.) |
| Melting point | 445 °C(lit.) |

Hazard statements
- H314Causes severe skin burns and eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 3260 8 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 34 |
| Safety statements (S) | 26-36/37/39-45 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Zinc iodide used for?
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Zinc iodide (CAS: 10139-47-6) is primarily used in catalysis and chemical synthesis, as well as in materials science research and development due to its properties as an inorganic salt.
What are the CAS number and formula for Zinc iodide?
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The CAS number for Zinc iodide is 10139-47-6, and its chemical formula is ZnI2.
What grade and purity does Tech Serve Solutions supply for Zinc iodide?
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Tech Serve Solutions supplies Zinc iodide with an assay of ≥99.99% trace metals basis. We do not represent this product as USP, BP, or EP grade.
What are the primary safety concerns when handling Zinc iodide?
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Zinc iodide is classified as a Danger hazard (GHS05). It causes severe skin burns and eye damage (H314). Appropriate personal protective equipment, including eyeshields, gloves, and respiratory protection, must be used. Handle with extreme caution.
How is Zinc iodide typically packed and shipped?
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Zinc iodide is packed according to industry standards for chemical reagents and is exported globally by Tech Serve Solutions. Specific packaging details are available upon request for UN 3260 shipments.
How can I request a quote or sample of Zinc iodide?
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To request a quote or a sample of Zinc iodide, please contact our sales team through the TSS website or call our direct line.
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