- Product Name: Zinc Iodide
- CAS: 10139-47-6
- Catalog: HG-BULK025
- Applications: Medical Applications, Chemical Analysis, Organic Synthesis.
Zinc iodide (ZnI2) is an inorganic chemical compound composed of zinc and iodine. Known for its strong Lewis acidity, zinc iodide is a crucial reagent in organic synthesis and other chemical processes. Its ability to act as both a disinfectant and a reagent makes it an important compound in laboratory and industrial settings.
Key Features
Hygroscopic
- Highly hygroscopic, absorbing moisture from the air.
Solubility
- It is easily soluble in water (with pH around 5), ethanol, ether, and aqueous ammonia solutions.
Reactivity
- It reacts with moisture, oxygen, and light to produce iodine, turning brown due to iodine oxidation.
Stability
- It recomposes at high temperatures (above 1150°C) and reacts with various acids and bases to form other compounds like zinc oxide, sulfur dioxide, and iodine.
Technical Data
| Items | Specification |
| Appearance | White or near-white fine granular powder or colorless hexagonal crystal |
| Purity | Analytically pure |
| pH | 5 |
| Melting point | 446℃ |
| Boiling point | 624℃ |
| Solubility | Highly soluble in water |
Applications
Alfa Chemistry's zinc iodide is utilized in a wide range of applications:
Medical Applications
- Antiseptic and Astringent: Used as a topical disinfectant for local application, zinc iodide helps prevent infection and serves as an astringent in various medical treatments.
Chemical Analysis
- Iodine-Starch Reagent: Employed in the detection and quantification of nitrites through iodine-starch reagent systems.
- Oxidizing Agent Detection: Zinc iodide is used in the detection of free chlorine and other oxidizing agents.
Organic Synthesis
- Organometallic Reactions: It acts as a key reagent in metal transfer reactions, enabling the formation of organic zinc compounds, which are pivotal for carbon-carbon coupling reactions.
- Simmons-Smith Reagent: Zinc iodide is involved in the synthesis of methylzinc iodide.
- Diels-Alder Reactions: It catalyzes Diels-Alder cycloaddition reactions, facilitating the formation of cyclic compounds through reactions with diene and dienophile substrates.
- Carbon-Heteroatom Activation: It promotes the activation of functionalized carbonyl compounds, enabling selective reactions.
- Polymerization and Substitution: Used in reactions with alkynes and electrophilic reagents to create multi-substituted alkenes and catalyze nucleophilic substitutions in organic synthesis.
- Selective Reduction: In combination with reducing agents like sodium cyanoborohydride, zinc iodide can reduce various carbonyl compounds (such as ketones, aldehydes, and alcohols) to their saturated forms, facilitating controlled reduction in organic chemistry.
Storage and Packaging
- Storage: Kept in a cool, dry place to avoid exposure to moisture and light.
- Packaging: Typically offered in sealed containers to ensure its integrity during storage and transport.
Zinc iodide from Alfa Chemistry offers exceptional versatility in both industrial and laboratory applications. Its wide range of uses, from medical applications to organic synthesis and chemical reactions, makes it an invaluable reagent. For more information, please feel free to contact us.
