Intermediates

Copper(I) Iodide

CAS No.7681-65-4
GradeIndustrial / Pharmaceutical
Availability● In Stock

High-purity Copper(I) Iodide (CuI), CAS 7681-65-4, widely used as a catalyst in organic synthesis and as an additive in animal nutrition formulations.

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Product Technical Details

Product Overview

Copper(I) Iodide (CuI), also known as cuprous iodide, is an inorganic compound with the molecular formula CuI and a molecular weight of 190.45 g/mol. It appears as a gray crystalline powder that may darken upon exposure to light due to partial decomposition. This compound is insoluble in water and ethanol but readily dissolves in concentrated hydrochloric acid and sulfuric acid, making it suitable for specialized chemical processes.

Specifications

Molecular Formula	CuI
Molecular Weight	190.45 g/mol
CAS Number	7681-65-4
Iodine Content	≥66%
Melting Point	605 °C (lit.)
Boiling Point	1290 °C
Density	5.62 g/mL at 25 °C (lit.)
Refractive Index	2.346
Solubility in Water	Insoluble
Appearance	Gray powder, darkens on exposure to light
Stability	Stable under normal temperatures and pressures
Storage Conditions	Store in a tightly closed container in a cool, dry, well-ventilated area away from direct sunlight and incompatible substances

Industrial Applications

Copper(I) Iodide serves primarily as a versatile catalyst in advanced organic synthesis, particularly in Ullmann-type coupling reactions, Sonogashira couplings, and other transition-metal-mediated transformations. Its role in facilitating carbon-heteroatom bond formation makes it invaluable in pharmaceutical and agrochemical intermediate manufacturing. Additionally, CuI is employed as a micronutrient source in animal feed additives to support metabolic functions and overall health in livestock. Historically, it has also found niche use in the production of anode ray tube covers due to its optical properties.