Copper(I) acetate

Copper(I) acetate (cuprous acetate) is an organic copper salt of acetic acid with chemical formula CH₃COOCu.

Copper(I) acetate

Identifiers
CAS Number	598-54-9
3D model (JSmol)	Interactive image
ChemSpider	62245
ECHA InfoCard	100.009.036
EC Number	209-938-7
PubChem CID	69023
UNII	9U3N93LMZB
CompTox Dashboard (EPA)	DTXSID0060511
InChI InChI=1S/C2H4O2.Cu/c1-2(3)4;/h1H3,(H,3,4);/q;+1/p-1 Key: RFKZUAOAYVHBOY-UHFFFAOYSA-M
SMILES CC(=O)[O-].[Cu+]
Properties
Chemical formula	C2H3CuO2
Molar mass	122.590 g·mol−1
Hazards
GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H315, H319, H335
Precautionary statements	P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Under standard conditions, copper(I) acetate is a colorless, odorless crystal.

Chemical propieties

When interacting with water (hydrolysis), copper(I) hydroxide (CuOH) is formed:

CuCH₃COO + H₂O → CuOH + CH₃COOH

In air, it oxidizes to copper(II) acetate. It forms adducts with organic substances.

Synthesis

• Reaction of copper(II) acetate with hydrogen or copper (reduction process):

2 (CH₃COO)₂Cu + H₂ → 2 CH₃COOCu + 2 CH₃COOH

(CH₃COO)₂Cu + Cu → 2 CH₃COOCu

• Interaction of hydroxylammonium sulfate and copper(II) acetate in the presence of ammonium acetate.
• Sublimation of copper(II) acetate in vacuum.

Application

Copper(I) acetate is used as a catalyst for the oxidation of phenols.