Copper(i) iodide
CAS 7681-65-4
EC 231-674-6
Formula CuI
MW 190.45 g/mol
Catalysts & Catalyst Precursors Pharmaceuticals & HealthcarePersonal Care & CosmeticsTextile, Leather & PaperBiotechnology & Life Sciences CatalysisPreservation & BiocideSurface Modification & Wetting
Description
Copper(I) Iodide (CAS 7681-65-4), also known as cuprous iodide or by the mineral name marshite, is an inorganic copper salt with the formula CuI. It carries no E-code designation and is classified under HS code 28276000. It is commercially available as a white to grey or tan powder.
In pharmaceutical synthesis, Copper(I) Iodide serves as a co-catalyst in Sonogashira cross-coupling reactions, activating terminal alkynes for carbon-carbon bond formation. In personal care formulations, it functions as an antimicrobial agent and skin conditioner by releasing controlled levels of copper ions. The textile industry applies it as a colorant and preservative in fiber treatments.
Copper(I) Iodide is supplied in technical and pharmaceutical-grade forms, with high-purity grades meeting Ph.Eur. and reagent specifications. The substance is registered under REACH and subject to standard EU chemical handling regulations. Packaging is available in multi-kilogram quantities suited to industrial procurement requirements.
In pharmaceutical synthesis, Copper(I) Iodide serves as a co-catalyst in Sonogashira cross-coupling reactions, activating terminal alkynes for carbon-carbon bond formation. In personal care formulations, it functions as an antimicrobial agent and skin conditioner by releasing controlled levels of copper ions. The textile industry applies it as a colorant and preservative in fiber treatments.
Copper(I) Iodide is supplied in technical and pharmaceutical-grade forms, with high-purity grades meeting Ph.Eur. and reagent specifications. The substance is registered under REACH and subject to standard EU chemical handling regulations. Packaging is available in multi-kilogram quantities suited to industrial procurement requirements.
Physical Properties
| Melting Point | 606 °C |
| Boiling Point | ~1290 °C (approx) |
| Density | 5.67 g/cm³ |
| Flash Point | 1290°C |
| Appearance | White to grey or tan powder |
| Color | White to Pale Brown |
| Form | Powder |
| Water Solubility | INSOLUBLE |
| Vapor Pressure | 10 mm Hg ( 656 °C) |
| Refractive Index | 2.346 |
Trade & Regulatory
| HS Code | 28276000 |
| UN Number | 3077 |
| ADR Class | 9 |
| Packing Group | III |
| Storage Class | 6.1D - Non-combustible acute toxic Cat.3 toxic hazardous materials or hazardous materials causing chronic effects |
| WGK (Germany) | 3 |
Other Names
Copper(1+) Iodidecuprous iodideCuITH-VCirasC 20150MarshiteHydro-gieneCOPPER IODIDE
Related Products
Need a chemical? Get a quote within 24 hours.