Material Safety Data Sheet for Cupric Acetate Monohydrate

Identification

Product Name: Cupric Acetate Monohydrate
Chemical Formula: Cu(CH₃COO)₂·H₂O
Other Names: Copper(II) acetate monohydrate, Blue verdigris
CAS Number: 6046-93-1
EC Number: 204-935-5
Recommended Use: Laboratory reagent, catalyst, pigment, fungicide
Supplier Details: Name, address, contact phone number, email
Emergency Contact: 24-hour emergency number provided by supplier

Hazard Identification

GHS Classification: Acute Toxicity (Oral, Dermal, Inhalation) Category 4, Eye Irritation Category 2A, Skin Irritation Category 2, Hazardous to Aquatic Life (Acute and Chronic) Category 1
Signal Word: Warning
Hazard Statements: Harmful if swallowed, in contact with skin, or if inhaled; causes skin irritation; causes serious eye irritation; very toxic to aquatic life with long lasting effects
Pictograms: Exclamation mark, Environmental
Precautionary Statements: Avoid breathing dust or fume, wash thoroughly after handling, do not eat or drink while using, avoid release into environment, wear protective gloves, protective clothing, and eye protection
Route of Exposure: Ingestion, inhalation, skin contact, eye contact
Symptoms: Nausea, vomiting, abdominal pain, liver and kidney effects, eye redness, skin rash

Composition / Information on Ingredients

Chemical Name: Copper(II) acetate monohydrate
Synonyms: Cupric acetate monohydrate, Blue copper acetate
CAS Number: 6046-93-1
EC Number: 204-935-5
Percentage by Weight: More than 99%
Impurities: Trace amounts of acetic acid, water by formula

First Aid Measures

General Advice: Remove from exposure area, seek medical attention
Inhalation: Move person to fresh air, keep comfortable, oxygen if breathing is difficult, call for immediate medical help
Skin Contact: Remove contaminated clothing, rinse skin with plenty of water for at least 15 minutes, use soap if available, seek medical care for persistent irritation
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses, continue rinsing, see doctor if irritation persists
Ingestion: Rinse mouth, do not induce vomiting, give small amount of water to drink if victim is conscious, call poison center or doctor
Most Important Symptoms and Effects: Severe gastrointestinal distress, burns to mucous membranes, eye damage, potential systemic toxicity

Fire-Fighting Measures

Suitable Extinguishing Media: Use dry sand, dry chemical, carbon dioxide, water spray
Unsuitable Extinguishing Media: Do not use water jet to avoid spreading
Specific Hazards: Emits toxic fumes under fire conditions (acetic acid, copper oxides)
Protective Equipment: Firefighters need self-contained breathing apparatus and full protective gear
Special Procedures: Keep containers cool with water spray, avoid runoff into drains or water sources

Accidental Release Measures

Personal Precautions: Wear gloves, eye protection, respirator where dust is generated, avoid inhalation and contact with skin
Environmental Precautions: Prevent material from entering watercourses or sewers
Methods for Containment: Contain spill, sweep up and collect in a suitable, labeled container
Cleanup Procedures: Wash spill area with soap and water, ventilate area; dispose of in accordance with local regulations
Small Spills: Scoop up, avoid dust formation, follow disposal considerations
Large Spills: Isolate area, call emergency response, prevent airborne dust

Handling and Storage

Handling: Use in well-ventilated areas, avoid generating dust, use protective clothing, wash hands after handling, keep away from food and beverages
Storage Conditions: Store in cool, dry, well-ventilated place, tightly closed container, protected from moisture and incompatible materials
Incompatible Materials: Strong acids, strong bases, reducing agents, metals
Advice on General Occupational Hygiene: Do not eat or drink while working, change contaminated clothing, wash hands before breaks and after work

Exposure Controls and Personal Protection

Occupational Exposure Limits: OSHA PEL for copper dust and mists: 1 mg/m³ (TWA), ACGIH TLV: 0.2 mg/m³ (respirable fraction)
Engineering Controls: Local exhaust ventilation, safety shower, eyewash station
Personal Protective Equipment: Face/Eye protection: Chemical safety goggles or face shield
Skin protection: Lab coat or chemical resistant clothing, gloves (nitrile or neoprene)
Respiratory protection: NIOSH-approved respirator if dust or fume exposure exists
Hygiene Measures: No eating, drinking, or smoking; thorough washing after use

Physical and Chemical Properties

Appearance: Blue to greenish blue crystals
Odor: Slight vinegar odor (acetic acid)
Odor Threshold: Low, may not be apparent to all users
pH (1% solution): 4.5-6.0
Melting Point: 115 °C (decomposes)
Boiling Point: Not applicable (decomposes before boiling)
Flash Point: Not flammable
Evaporation Rate: Not available
Flammability: Non-flammable solid
Vapor Pressure: Negligible
Vapor Density: Not applicable
Relative Density: 1.88 g/cm³
Solubility in Water: 72 g/L (20 °C)
Partition Coefficient (n-octanol/water): Not available
Auto-Ignition Temperature: Not applicable
Decomposition Temperature: Above 115 °C
Viscosity: Not available

Stability and Reactivity

Chemical Stability: Stable under recommended storage conditions
Reactivity: Slightly reactive with acids, bases, strong oxidizers
Hazardous Reactions: Can react with reducing agents and metals, liberates acetic acid vapors
Conditions to Avoid: Moisture, heat, incompatible substances, sources of ignition
Hazardous Decomposition Products: Copper oxides, acetic acid, potentially carbon oxides
Incompatibility: Reacts with strong acids, alkalis, reducing substances

Toxicological Information

Acute Toxicity: LD₅₀ (oral, rat): 710 mg/kg; LD₅₀ (dermal, rabbit): Not well documented; Harmful if ingested or inhaled
Skin Corrosion/Irritation: Causes skin irritation or burns on contact
Serious Eye Damage/Irritation: Serious irritation and possible corneal injury
Respiratory Sensitization: Not classified, but dust/fume inhalation causes respiratory discomfort
Ingestion: Nausea, vomiting, gastric pain, damage to kidney and liver function
Chronic Effects: Long-term exposure linked to anemia, liver and kidney effects
Carcinogenicity: Not listed by IARC, NTP, OSHA
Other Data: Sensitization potential low, not mutagenic or teratogenic in available studies

Ecological Information

Aquatic Toxicity: Very toxic to aquatic life, copper ions disrupt fish and algae metabolism
Persistence and Degradability: Not rapidly biodegradable, copper persists in soils and sediments
Bioaccumulative Potential: Copper accumulates in aquatic organisms, biomagnifies across food chains
Mobility in Soil: Moderately mobile, binds to soil particles, risk of groundwater contamination where overused or spilled
Other Adverse Effects: Toxic effects on soil microfauna and plants, alters ecological balance

Disposal Considerations

Waste Treatment Methods: Collect solid material in designated, labeled waste containers for hazardous waste
Disposal of Product: Dispose as hazardous chemical waste in accordance with all local, regional, and national regulations
Disposal of Contaminated Packaging: Rinse thoroughly, dispose or recycle in accordance with regulations
Special Precautions: Do not release into environment, avoid accidental contamination of watercourses
Additional Notes: Professional waste management recommended for significant quantities

Transport Information

UN Number: UN3077
UN Proper Shipping Name: Environmentally hazardous substance, solid, n.o.s. (Contains Copper(II) acetate monohydrate)
Transport Hazard Class: 9 (Miscellaneous dangerous substances)
Packing Group: III
Environmental Hazards: Marine pollutant
Special Precautions for User: Secure packaging, avoid spills during transport, labeling requirement for hazardous substances
Regulatory Transport Labels: Dangerous goods, marine pollutant marking required
Additional Transport Information: Confirm specific local regulations for all modes (road, rail, air, sea)

Regulatory Information

Safety, Health, and Environmental Regulations: Listed under TSCA (USA), REACH (EU), WHMIS (Canada), OSHA hazardous chemicals
Hazardous Chemical Listing: Listed as hazardous under various country-specific chemical inventories
SARA Title III (Section 313): Copper compounds subject to reporting
Clean Water Act (USA): Copper designated as toxic pollutant
EPA Registration: Required for use as a pesticide or fungicide
Workplace Labelling: Requires hazard and precaution labeling per GHS/OSHA standards
Special State Requirements: Subject to additional controls in some US states
Other International Regulations: Follows European SVHC (Substance of Very High Concern) , subject to reporting obligations
Chemical Safety Assessment: Carried out under REACH for substance by manufacturer/importer