Material Safety Data Sheet for Copper(II) Chloride Dihydrate

1. Identification

Product Name: Copper(II) Chloride Dihydrate
Chemical Formula: CuCl₂·2H₂O
Synonyms: Cupric chloride dihydrate
CAS Number: 10125-13-0
Recommended Use: Laboratory reagent, chemical synthesis, catalyst, pigment
Supplier: (Company details required for specific site requirements)
Emergency Contact: Refer to specific workplace procedures

2. Hazard Identification

GHS Classification: Acute toxicity (oral, dermal, inhalation) Category 4; Eye Irritation Category 2A; Aquatic Acute Category 1; Aquatic Chronic Category 1
Signal Word: Warning
Hazard Statements: Harmful if swallowed, harmful in contact with skin, causes skin and serious eye irritation, toxic to aquatic life with long lasting effects
Pictograms: Exclamation mark, environment
Precautionary Statements: Avoid release to environment, do not eat, drink, or smoke near the product, wash hands thoroughly after handling, wear protective gear

3. Composition / Information on Ingredients

Chemical Name: Copper(II) Chloride Dihydrate
Concentration: ≥99%
CAS Number: 10125-13-0
EINECS Number: 231-210-2
Impurities: Trace quantities of anhydrous copper(II) chloride and water

4. First Aid Measures

Inhalation: Move person to fresh air, monitor breathing, call for medical attention if symptoms develop including shortness of breath or coughing
Skin Contact: Remove contaminated clothing, flush affected area with water for several minutes, seek medical help if irritation persists
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present and easy to do, continue rinsing, get prompt medical attention
Ingestion: Rinse mouth, seek immediate medical advice, do not induce vomiting unless recommended by medical personnel

5. Fire-Fighting Measures

Suitable Extinguishing Media: Carbon dioxide, dry chemical, foam, water spray
Hazards from Combustion: Hydrogen chloride gas, copper oxides
Protective Equipment: Full protective clothing, self-contained breathing apparatus
Advice for Firefighters: Avoid inhalation of gases, use water spray to cool containers, prevent runoff from entering drains

6. Accidental Release Measures

Personal Precautions: Use personal protection appropriate to the situation, ventilate area, avoid inhalation and skin contact
Environmental Precautions: Prevent entry into drains, ground water, or soil, notify authorities in case of major spills
Methods for Cleanup: Collect with non-combustible absorbent, shovel into appropriate waste containers, decontaminate spill area, dispose following local regulation

7. Handling and Storage

Handling: Use in well-ventilated areas, avoid aerosol and dust formation, practice safe hygiene by washing hands frequently, prevent contact with eyes, skin, and clothing
Storage: Keep container tightly closed, store in a dry, cool, and well-ventilated place away from incompatible substances like strong bases and oxidizing agents, store locked up and prevent unauthorized access

8. Exposure Controls and Personal Protection

Occupational Exposure Limits: Copper (dust and mists, as Cu): OSHA PEL 1 mg/m³ TWA; ACGIH TLV 1 mg/m³
Engineering Controls: Use local exhaust ventilation, safety showers, eyewash stations in workplace areas
Personal Protective Equipment: Wear chemical-resistant gloves, goggles or face shield, lab coat or coveralls, respiratory protection if airborne exposure exceeds the limits, ensure work practices minimize exposure

9. Physical and Chemical Properties

Appearance: Blue-green crystalline solid
Odor: Odorless
Odor Threshold: Not applicable
pH: Slightly acidic aqueous solution
Melting Point: 100°C with decomposition
Boiling Point: Decomposes
Flash Point: Not flammable
Solubility: Soluble in water, ethanol, methanol
Relative Density: 2.51 g/cm³
Vapor Pressure: Not relevant at ambient conditions
Partition Coefficient: Not available
Evaporation Rate: Not applicable
Viscosity: Not available

10. Stability and Reactivity

Chemical Stability: Stable under recommended storage conditions, exposure to air leads to slow dehydration
Reactivity: Reacts with strong bases, ammonia, reducing agents, and releases toxic gases on heating
Hazardous Decomposition: Hydrogen chloride gas, copper oxide fumes formed on decomposition
Conditions to Avoid: Excess heat, moisture, incompatible substances

11. Toxicological Information

Acute Toxicity: Oral LD₅₀ (rat) ~584 mg/kg; Dermal LD₅₀ (rabbit) >2000 mg/kg
Skin Corrosion/Irritation: Causes irritation, possible dermatitis on prolonged or repeated contact
Eye Damage/Irritation: Causes serious eye irritation
Respiratory Sensitization: May cause airway irritation if inhaled
Other Effects: Ingestion results in gastrointestinal effects, cramps, nausea, vomiting; Copper may cause systemic toxicity especially with long-term exposure

12. Ecological Information

Toxicity to Aquatic Life: Very toxic to aquatic organisms; LC₅₀ for fish: 0.24 mg/L (96h, Oncorhynchus mykiss)
Persistence and Degradability: Not readily biodegradable in water
Bioaccumulative Potential: Copper ions may bioaccumulate in aquatic life
Mobility in Soil: Moderately mobile, can contaminate water systems through runoff
Other Adverse Effects: Disrupts aquatic environments, may harm plant root systems by interfering with nutrient uptake

13. Disposal Considerations

Waste Treatment Methods: Dispose product, contaminated packaging, and cleanup materials as hazardous waste following local, state, and federal regulations
Recommended Disposal: Use licensed waste disposal contractor; prevent release to drains or environment
Disposal Code: Comply with local hazardous waste regulations; RCRA waste code D001, D005 applicable based on copper compound content

14. Transport Information

UN Number: UN2802
Proper Shipping Name: Copper Chloride
Transport Hazard Class: 8 (Corrosive substances)
Packing Group: III
Marine Pollutant: Yes
Special Precautions: Transport in original containers, keep upright and secure, notify authorities of incidents during transit, avoid release during loading/unloading

15. Regulatory Information

US Regulations: Reportable under SARA Title III, Section 313; listed by CERCLA, TSCA inventory
EU Regulations: Registration under REACH; hazardous according to CLP Regulation EC 1272/2008
Other International: Listed in Canada DSL/NDSL, Australia AICS, Japan ENCS
Label Requirements: Conforms to GHS standards; hazard and precaution statements must be included
Restrictions: Subject to workplace control measures and community environmental discharge limits based on jurisdiction