Structure via PubChem · Public domain (PubChem)
Chemical data
- Formula
- CuI
- Molecular weight
- 190.45 g/mol
- IUPAC name
- copper(1+) iodide
- SMILES
- [Cu+].[I-]
- InChIKey
- LSXDOTMGLUJQCM-UHFFFAOYSA-M
- Polar surface area
- 0 Ų
- H-bond donors
- 0
- H-bond acceptors
- 1
- Formal charge
- 0
via PubChem
Wikidata facts
- Subclass of
- chemical compound
- Has part
- copper
- Mass
- 189.834
- Image
- Copper(I) iodide.jpg
Show 9 more facts
- Commons category
- Copper(I) iodide
- chemical formula
- CuI
- canonical SMILES
- [Cu]I
- melting point
- 605
- density
- 5.62
- Mohs' hardness
- 2.5
- boiling point
- 1320
- standard enthalpy of formation
- -68
- refractive index
- 2.346
via Wikidata · CC0
~4 min read
Encyclopedic overview
Copper(I) iodide is an inorganic compound with the chemical formula CuI. It is also known as cuprous iodide. It is useful in a variety of applications ranging from organic synthesis to cloud seeding.
Copper(I) iodide is white, but samples often appear tan or, when found in nature as rare mineral marshite, reddish brown, but such color is due to the presence of impurities. It is common for samples of iodide-containing compounds to become discolored due to the facile aerobic oxidation of the iodide anion to molecular iodine.
Excerpted from Wikipedia’s “cuprous iodide” article, available under the CC BY-SA 4.0 licence.