Cupric Acetate, Monohydrate
CUPRIC ACETATE MONOHYDRATE
Cu(CH₃COO)₂·H₂O
Cupric Acetate Monohydrate is of blue–green, fine, monoclinic crystals and smells slight acetic odour; soluble in ethanol, methanol; slightly soluble in ether & glycerol.
Grades
Cupric Acetate Monohydrate is available in Technical Pure Grade.
Specifications
Grade | Technical Pure |
Assay: ≥99% | Potassium: ≤0.05% |
Water-Insoluble: ≤0.5% | Lead: ≤0.005% |
Copper: ≥31.21% | Calcium: ≤0.01% |
Chlorine: ≤0.05% | Iron:≤0.005% |
Sulfate: ≤0.01% | Nickel: ≤0.01% |
Sodium: ≤0.05% | M str: ≤1% |
Methods of analysis
Cu assay: iodometric back-titration or AAS (typ. 98.0–102.0 %).
Water of hydration: Karl-Fischer titration (theor. 9.0 %).
Impurities: ICP-OES (Pb ≤ 20 ppm, Fe ≤ 50 ppm) ; IC for Cl⁻, SO₄²⁻ (each ≤ 100 ppm) .
Identity: FT-IR (ν COO 1600, 1440 cm⁻¹); XRPD matches ICDD 00-027-0165 pattern.
Loss on drying: 105 °C to constant weight (≤ 9.5 %) .
Packing
Cupric acetate anhydrous is packaged in 1 kg, 5 kg, 25 kg bags.
Inner: two 0.1 mm LDPE liners heat-sealed under ambient air.
Outer: UN-coded 1H2 / Y / S /… fibreboard drum or laminated woven PP bag; labelled “ KEEP DRY – AVOID HEAT ”.
Storage and handling
Store cool (15–30 °C) , dry , well-ventilated ; keep away from strong acids , alkalis , oxidisers , foodstuffs ; Avoid mechanical stress that could rupture inner liners ; Shelf life: 2 years in original , unopened packaging; reseal partly-used containers immediately.
First-aid measures
Inhalation: move to fresh air; give oxygen if cough or dyspnoea persists—see doctor.
Skin: remove contaminated clothing; flush with water ≥ 15 min; consult physician if irritation persists.
Eyes: hold eyelids apart, irrigate with running water ≥ 15 min; seek immediate specialist ophthalmologic review.
Ingestion: rinse mouth; do NOT induce vomiting; drink 200–300 mL water if alert; take victim to hospital with package label.
Fire & explosion hazard
NFPA 704: Health 2, Flammability 0, Instability 0.
Non-flammable; however, evolves acetic acid and flammable acetone-like decomposition products > 200 °C.
Fire fighting: water spray, alcohol-resistant foam, dry chemical or CO₂.
Fire-runoff may contain dissolved copper—prevent entry to sewers.
Application
Catalysis: Eglinton / Glaser coupling, aerobic alcohol oxidation, click chemistry.
Analytical chemistry: spot test for amino acids, K⁺, CN⁻; colourimetric Cu standard.
Electro-plating & PCB metallisation: source of Cu²⁺ in alkaline or mildly acidic baths.
Pigments & ceramics: precursor for verdigris and Paris green; colourant in glazes.
Agriculture: component of fungicidal “ Bordeaux mixture ” type wettable powders.
DNA research: reversible binding to ribose hydroxyls during extraction protocols.
Physical and chemical properties
Physical state : Solid | Color : Blue-green. |
Appearance : Solid. | Odor : No data available |
Molecular mass : 181.63 g / mol | Melting point : 115 °C decomposes |
Relative density : 1.882 | VOC content : < 1 % |
Solubility : Soluble in water. | Relative vapor density at 20 °C : No data available |
pH : No data available | Freezing point : No data available |
Flash point : No data available | Boiling point : No data available |
Auto-ignition temperature : No data available | Decomposition temperature : No data available |
Physiological/ toxicological properties
Acute oral LD₅₀ (rat): ≈ 710 mg kg⁻¹ (equivalent to anhydrous salt).
Local: irritating to skin, eyes and upper respiratory tract.
Systemic: prolonged intake or inhalation may cause copper overload with liver & kidney damage; reversible anaemia possible.
TLV-TWA (Cu, dust & mist): 1 mg m⁻³ (ACGIH 2025).
Environmental: very toxic to aquatic life (EC₅₀, Daphnia 0.06 mg Cu L⁻¹); collect spills with inert absorbent, dispose as heavy-metal hazardous waste.