C

Copper(I) iodide

IUPAC: copper(1+) iodide

CuI Laboratory Reagents CAS 7681-65-4
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Quick Reference
Formula / NotationCuI
CAS Number7681-65-4
Molecular Weight190.45
Melting Point606 °C
Boiling PointAbout 1290 °C
Density5.67
SolubilityInsoluble in dilute acid solutions
AppearancePellets or Large Crystals; Dry Powder
Also Known Ascopper(1+) iodide; Copper(1+) iodide; Marshite; Hydro-Giene; Copper monoiodide; Copper iodide (cui); DTXSID5041803; 7DE9CA6IL2; DTXCID3021803; 231-674-6
CategoryLaboratory Reagents

What is Copper(I) iodide?

Copper(I) iodide (CuI) is a laboratory reagent that appears as Pellets or Large Crystals; Dry Powder. It has a molecular weight of 190.45 g/mol. Its IUPAC name is copper(1+) iodide. Boiling point: About 1290 °C. Melting point: 606 °C.

Formula & Notation

CuI

IUPAC Name: copper(1+) iodide

Other Names / Synonyms: copper(1+) iodide; Copper(1+) iodide; Marshite; Hydro-Giene; Copper monoiodide; Copper iodide (cui); DTXSID5041803; 7DE9CA6IL2; DTXCID3021803; 231-674-6

Properties & Characteristics

Appearance: Pellets or Large Crystals; Dry Powder. Molecular formula: CuI. Molecular weight: 190.45 g/mol. Boiling point: About 1290 °C. Melting point: 606 °C. Density: 5.67. Solubility: Insoluble in dilute acid solutions. Vapor pressure: 10 MM HG @ 656 °C.

Physical Data

PropertyValue
Melting Point606 °C
Boiling PointAbout 1290 °C
Density5.67
Molecular Weight190.45
SolubilityInsoluble in dilute acid solutions
AppearancePellets or Large Crystals; Dry Powder

Uses & Applications

Used as a synthetic reagent for transformations including oxidation, reduction, coupling, or functional group manipulation.

Safety Information

Hazardous reagent. May be toxic, corrosive, flammable, or reactive. Use in fume hood with full PPE. Consult SDS before use.

Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.

Key Facts

Term Copper(I) iodide
Formula CuI
CAS Number 7681-65-4
Molecular Weight 190.45
Synonyms copper(1+) iodide; Copper(1+) iodide; Marshite; Hydro-Giene; Copper monoiodide; Copper iodide (cui); DTXSID5041803; 7DE9CA6IL2; DTXCID3021803; 231-674-6

Frequently Asked Questions

Copper(I) iodide (CuI) is a laboratory reagent that appears as Pellets or Large Crystals; Dry Powder. It has a molecular weight of 190.45 g/mol. Its IUPAC name is copper(1+) iodide. Boiling point: About 1290 °C. Melting point: 606 °C.

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Editorial standards: Chemical data is sourced from peer-reviewed literature, CAS Registry, NIST WebBook, and PubChem. Safety information reflects guidance from OSHA, ECHA, and IAEA. For educational purposes only — always consult official SDS documentation and qualified professionals before handling chemicals.