Zinc Iodide (ZnI2)-Powder
Product Description
Characteristic
Zinc iodide is a chemical compound of zinc and iodine, ZnI2. The anhydrous form is white and readily absorbs water from the atmosphere.
Chemical formula：ZnI2
Molar mass：319.22 g/mol
Appearance：white solid
Density：4.74 g/cm3
Melting point：446 °C (835 °F; 719 K)
Boiling point：1,150 °C (2,100 °F; 1,420 K) decomposes
Solubility in water：450 g/100mL (20 °C)
Magnetic susceptibility (χ)：−98.0·10−6 cm3/mol
Crystal structure：Tetragonal, tI96
Application
Zinc iodide is often used as an x-ray opaque penetrant in industrial radiography to improve the contrast between the damage and intact composite.
United States patent 4,109,065 describes a rechargeable aqueous zinc-halogen cell which includes an aqueous electrolytic solution containing a zinc salt selected from the class consisting of zinc bromide, zinc iodide, and mixtures thereof, in both positive and negative electrode compartments.
In conjunction with osmium tetroxide, ZnI2 is used as a stain in electron microscopy.
Zinc iodide is an excellent catalyst for the selective conversion of methanol to triptane and hexamethylbenzene.