Copper(II) acetate hydrate
Copper(II) acetate hydrate, CAS 66923-66-8, with the formula Cu(CO2CH3)2 · xH2O and a molar mass of 181.63 g/mol (anhydrous basis), is a blue-green crystalline solid. This compound serves as a precursor in materials science and micro/nanoelectronics, particularly for solution deposition techniques. Its defined hydration level and assay make it a reliable choice for various chemical syntheses and research applications requiring a soluble copper source.

Precursor for Materials Science
Copper(II) acetate hydrate is employed as a starting material in the synthesis of various copper-containing materials. Its solubility in water and other polar solvents facilitates its use in solution-based fabrication methods.
Micro/Nanoelectronics Applications
This compound can be used as a precursor in the deposition of thin copper films or copper oxide nanostructures. These are relevant in the fabrication of electronic components and devices.
Solution Deposition Precursor
The compound's ability to dissolve in suitable solvents makes it an effective precursor for solution deposition techniques, enabling the formation of functional layers and coatings.
Catalysis Research
Copper acetate derivatives are sometimes explored for their catalytic properties in various organic transformations. This hydrated form can serve as a convenient source of copper ions for such investigations.
| Molecular weight | 181.63 (anhydrous basis) |
|---|---|
| Linear formula | Cu(CO2CH3)2 · xH2O |
| Assay | 98% |
| Vapour density | 6.9 (vs air) |
| Composition | Degree of hydration, ~1 |


Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
- H400Very toxic to aquatic life
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P273Avoid release to the environment
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Transport (UN / ADR) | UN 3077 9 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn,N |
| Risk statements (R) | 22-36/37/38-50/53 |
| Safety statements (S) | 26-60-61 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Copper(II) acetate hydrate used for?
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Copper(II) acetate hydrate is primarily used as a precursor in materials science and micro/nanoelectronics, particularly for solution deposition techniques. It also finds applications in catalysis research.
What is the CAS number and chemical formula for Copper(II) acetate hydrate?
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The CAS number is 66923-66-8, and the chemical formula is Cu(CO2CH3)2 · xH2O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Copper(II) acetate hydrate with an assay of 98%. We do not represent this product as USP, BP, or EP grade.
How should Copper(II) acetate hydrate be handled?
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Copper(II) acetate hydrate is harmful if swallowed, causes skin irritation, causes serious eye irritation, and may cause respiratory irritation. It is also very toxic to aquatic life. Handle with appropriate personal protective equipment, including a dust mask (N95), eyeshields, and gloves, in a well-ventilated area. Avoid release to the environment.
Is Copper(II) acetate hydrate shipped internationally?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including Copper(II) acetate hydrate, and can arrange for international shipment.
How can I request a sample or a quote for Copper(II) acetate hydrate?
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To request a sample or a quote for Copper(II) acetate hydrate, please contact the Tech Serve Solutions sales team through our website or by phone.
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