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Product Name: Copper Selenite
Chemical Formula: CuSeO3
CAS Number: 14469-06-6
Synonyms: Cuproseleite
Manufacturer: Supplier’s contact information (address, emergency phone)
Recommended Use: Laboratory chemicals, synthesis of other compounds
Restrictions on Use: Not for food, drug, or household use
GHS Classification: Acute Toxicity (Oral, Inhalation), Serious Eye Damage/Irritation, Specific Target Organ Toxicity
Signal Word: Danger
Hazard Statements: Toxic if swallowed, inhaled or in contact with skin. Causes serious eye irritation and may damage organs through prolonged or repeated exposure.
Pictograms: Skull and crossbones, exclamation mark, health hazard
Precautionary Statements: Avoid breathing dust or fumes, wear proper protective equipment, do not eat or drink near the material
Copper Selenite: 100%
Chemical Composition: CuSeO3
Impurities: None known above occupational exposure limits
Inhalation: Move exposed person to fresh air immediately; provide artificial respiration or oxygen by trained personnel if breathing has stopped; seek medical attention as soon as possible
Eye Contact: Rinse eyes carefully with plenty of water for several minutes; remove contact lenses if possible; continue rinsing; get prompt medical advice
Skin Contact: Remove contaminated clothing; rinse skin with water and mild soap for at least 15 minutes; seek medical attention if irritation develops or persists
Ingestion: Rinse mouth with water, do not induce vomiting, give water to drink if conscious; get immediate medical assistance
Note to Physician: Treat symptomatically and supportively; monitor respiratory, cardiac and hepatic function
Suitable Extinguishing Media: Water spray, foam, dry chemical, carbon dioxide
Specific Hazards: Thermal decomposition releases toxic gases such as selenium oxides, copper oxides
Special Protective Equipment: Firefighters should use self-contained breathing apparatus and full protective clothing
Other Information: Prevent runoff to water sources; cool unopened containers with water spray
Personal Precautions: Evacuate area, ventilate location, avoid dust formation; wear respiratory protection and protective clothing
Environmental Precautions: Prevent entry into water systems, sewer, or soil
Cleanup Methods: Use HEPA-filtered vacuum for dust or mop up with damp materials; place residue in labeled hazardous waste container; do not return spilled material to original container
Handling: Use in a fume hood or well-ventilated area; avoid creating dust; use personal protective equipment including gloves and safety goggles; avoid contact with skin and eyes
Storage: Keep container tightly closed and in a dry, cool, well-ventilated place away from sources of ignition, acids, and incompatible materials; store separately from food and feedstuffs; maintain appropriate labeling
Occupational Exposure Limits: OSHA PEL for selenium compounds: 0.2 mg/m3 (as Se); ACGIH TLV: 0.2 mg/m3
Engineering Controls: Use local exhaust ventilation or adequate general ventilation
Personal Protective Equipment: Protective gloves (nitrile or rubber), chemical-resistant safety goggles, laboratory coat or coveralls, approved respirator for dust if ventilation is inadequate
Hygiene Measures: Wash hands before eating, drinking, or using toilet; do not eat, drink, or smoke in work areas; remove contaminated clothing for cleaning
Appearance: Pale blue or blue-green crystalline powder
Odor: Odorless
pH: Not available
Melting Point/Freezing Point: Decomposes before melting
Boiling Point: Not applicable
Flash Point: Not applicable
Solubility: Slightly soluble in water, insoluble in most organic solvents
Density: Approximately 4.4 g/cm3
Vapor Pressure: Not applicable
Partition Coefficient (n-octanol/water): Not available
Decomposition Temperature: Above 350°C
Other Data: Non-volatile solid
Chemical Stability: Stable under recommended storage conditions
Possibility of Hazardous Reactions: May react with strong acids to emit toxic gases
Conditions to Avoid: Heat, flames, direct sunlight, moisture
Incompatible Materials: Strong acids, reducing agents
Hazardous Decomposition Products: Selenium oxides, copper oxides, toxic fumes
Acute Toxicity: Oral LD50 (rat): Not precisely established, but selenium compounds have LD50 1-10 mg/kg range
Routes of Exposure: Inhalation, ingestion, skin and eye contact
Symptoms: Nausea, vomiting, diarrhea, headache, metallic taste, gastrointestinal distress, serious irritation of eyes, respiratory symptoms
Chronic Effects: Prolonged exposure can affect liver, kidney, nervous system; possible selenium accumulation
Carcinogenicity: Not listed as carcinogenic by IARC, NTP, OSHA
Mutagenicity: Data not conclusive for copper selenite
Reproductive Toxicity: Data inadequate, related selenium compounds affect fertility in animal studies
Aquatic Toxicity: Very toxic to aquatic life with long lasting effects due to copper and selenium ions
Persistence and Degradability: Not readily biodegradable, persists in environment
Bioaccumulative Potential: Selenium and copper compounds bioaccumulate, affecting aquatic and soil organisms
Mobility in Soil: Moderately mobile under certain pH conditions; copper binds strongly to soil particles, selenium solubility varies
Other Adverse Effects: Can cause algal blooms and disrupt fish gill function at low concentrations
Waste Treatment Methods: Dispose in accordance with local, regional, national, international regulations as hazardous waste
Contaminated Packaging: Dispose of as hazardous material, do not reuse containers
Preferred Disposal Options: Incineration by licensed chemical waste disposer or secure landfill designed for heavy metals and selenium compounds
Precautions: Ensure waste does not contaminate ground, surface water, or drains
UN Number: 3283
UN Proper Shipping Name: Selenium compound, n.o.s. (includes copper selenite)
Transport Hazard Classes: 6.1 (Toxic substances)
Packing Group: III
Environmental Hazards: Marine pollutant
Special Precautions: Avoid breakage, spills; use original packaging, secondary containment if needed
DOT, IMDG, IATA Regulations: Comply with all applicable rules for transport of toxic substances
TSCA: Listed
SARA 313: Subject to reporting (contains copper compounds, selenium compounds)
Clean Water Act: Listed toxic pollutant
EU Regulations: Classified under Regulation (EC) No 1272/2008 (CLP/GHS), REACH restrictions apply
WHMIS Classification (Canada): D1A (Very Toxic), D2B (Toxic), D2A (Carcinogenicity/mutagenicity)
Other Regulatory Listings: Check regional, provincial, and local environmental and occupational rules
