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Product Name: Barium Selenate
Synonyms: Barium Salt of Selenic Acid
Chemical Formula: BaSeO4
CAS Number: 7787-41-9
Use: Research chemistry, pigments, analytical reagents
Supplier: Manufacturer or distributor details, emergency contact numbers, office phone numbers
Classification: Acute Toxicity (Oral, Inhalation), Environmental Hazard
Hazard Symbols: Skull and crossbones, environment
Signal Word: Danger
Hazard Statements: Toxic if swallowed, may cause organ damage, very toxic to aquatic life with long-lasting effects
Precautionary Statements: Keep locked up, avoid breathing dust, wear protective gloves and clothing, avoid release to the environment, wash hands thoroughly after handling
Chemical Identity: Barium Selenate
Common Name: Barium Selenate
Concentration: 100% (pure form for laboratory use)
Impurities: Trace contaminants may be present from production, typically below 1%
Inhalation: Move person to fresh air, seek immediate medical attention, monitor for respiratory distress, provide oxygen if breathing becomes difficult
Skin Contact: Remove contaminated clothing, rinse skin immediately with plenty of water for at least 15 minutes, consult a physician
Eye Contact: Rinse eyes with water for several minutes, hold eyelids open, avoid rubbing, get medical advice without delay
Ingestion: Rinse mouth, do not induce vomiting, seek urgent medical assistance, provide information about material ingested
Emergency Advice: Always bring a safety data sheet and/or label to healthcare professionals
Suitable Extinguishing Media: Use water spray, dry chemical, or carbon dioxide for small fires, foam for large fires
Unsafe Extinguishing Media: Avoid using high-pressure water jets, do not use media containing reactive metals
Hazardous Combustion Products: Selenium oxides, barium oxides, toxic fumes
Protective Equipment: Wear self-contained breathing apparatus, full fireproof protective suit
Special Procedures: Isolate hazard area, evacuate unnecessary personnel, keep run-off water out of sewers, fight fire from a safe distance
Personal Precautions: Evacuate unprotected personnel from spill area, ensure proper ventilation, use dust mask, chemical-resistant gloves, goggles
Environmental Precautions: Prevent further leakage, do not allow into drains or watercourses, inform environmental authorities if contamination occurs
Cleaning Methods: Sweep spill carefully to avoid dust, collect in secure containers, dispose via licensed waste contractors, wash area with water
Handling: Use in well-ventilated areas, avoid creating dust, wear appropriate protective equipment at all times, wash hands thoroughly after use
Storage: Store in original, tightly closed containers, keep away from incompatible substances, store in a cool, dry, well-ventilated place, keep away from food, feed, and drink, label containers clearly and keep secure from unauthorized access
Exposure Limits: No specific occupational exposure limits established for barium selenate, but handling as for highly toxic barium and selenium compounds is advised
Engineering Controls: Use chemical fume hoods or adequate exhaust ventilation, containment systems for large volumes
Personal Protective Equipment: Respiratory protection with NIOSH-approved respirators for dust, chemical splash goggles, face shields, laboratory coats, nitrile or neoprene gloves, safety shoes
Hygiene Measures: Keep workplace clean, wash hands before breaks, do not eat, drink, or smoke in handling areas
Appearance: Colorless to white crystalline solid or powder
Odor: Odorless
Melting Point: Decomposes without melting
Boiling Point: Not applicable
Solubility: Insoluble in water, soluble in strong acids
Density: Approximately 4.7 g/cm3
pH: Not applicable (aqueous solution not formed)
Vapor Pressure: Not volatile
Partition Coefficient: Not available
Flash Point: Not flammable
Autoignition Temperature: Not relevant
Explosive Properties: Not explosive
Chemical Stability: Stable under normal storage conditions
Conditions to Avoid: Exposure to acids releases toxic gases, avoid strong heat sources
Incompatible Materials: Strong acids, reducing agents
Hazardous Decomposition Products: Selenium oxides, barium oxides
Polymerization: No hazardous polymerization expected
Routes of Exposure: Inhalation, ingestion, eye, and skin contact
Acute Toxicity: Highly toxic, may cause nausea, gastro-intestinal pain, vomiting, convulsions, shock, or death
Chronic Effects: Long-term exposure can cause kidney, liver, or nervous system damage, bioaccumulation of barium and selenium in body tissues
Irritation: Causes serious eye and skin irritation
Carcinogenicity: Neither barium nor selenate forms are classified as carcinogens by IARC or OSHA at time of writing
Target Organs: Kidneys, liver, nerves, gastrointestinal tract
Aquatic Toxicity: Very toxic to aquatic life, causes long-term adverse effects in aquatic environments
Bioaccumulation: Tends to accumulate in aquatic organisms, risk of food chain magnification
Mobility: Slightly mobile in soil, persistent in water environments
Degradability: Not readily biodegradable, persists in sediments
Environmental Fate: Selenium compounds may convert to more mobile forms in water, leading to spread through food webs
Waste Disposal Methods: Handle as hazardous waste, do not dispose with domestic waste, send for suitable incineration or landfill at authorized facilities, observe local, regional, national, and international waste regulations
Contaminated Packaging: Treat containers as hazardous, rinse with appropriate solvent, dispose in authorized manner
UN Number: UN3288
Proper Shipping Name: Toxic solid, inorganic, n.o.s. (Barium Selenate)
Transport Hazard Class: 6.1 (Toxic substances)
Packing Group: II
Label Requirements: Toxic, environmentally hazardous substance
Special Precautions: Transport in secure, labeled containers, avoid spillage and contact, inform carriers of hazardous nature
OSHA Status: Hazardous chemical based on OSHA Hazard Communication Standard
TSCA (US): Listed
REACH (EU): Register as per regulations, subject to restrictions under Annex XVII
WHMIS (Canada): Classified as toxic
Other Local Regulations: Subject to strict labeling, exposure, and handling controls under workplace safety laws, check national and regional regulations before use
