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Product Name: Potassium Selenate
Chemical Formula: K2SeO4
Chemical Family: Inorganic Compound, Selenate Salt
Synonyms: Dipotassium selenate
Recommended Use: Laboratory reagent, occasional use in chemical synthesis, trace mineral in animal nutrition
Supplier’s Details: Contact information for local distributor or manufacturer
Emergency Telephone Number: Access local poison control or environmental health agency
Classification (GHS): Acute Toxicity (Oral), Category 2; Eye Irritation, Category 2A; Aquatic Chronic, Category 2
Signal Word: Danger
Hazard Statements: Fatal if swallowed; Causes serious eye irritation; Toxic to aquatic life with long-lasting effects
Pictograms: Skull and crossbones, exclamation mark, environment symbol
Precautionary Statements: Wash hands thoroughly after handling, do not eat, drink or smoke when using this product, avoid release to environment
Chemical Name: Potassium Selenate
CAS Number: 10124-56-8
EC Number: 233-321-1
Concentration: 100%
Inhalation: Move the exposed person to fresh air, keep warm and at rest, seek medical attention if symptoms persist
Skin Contact: Remove contaminated clothing, rinse skin with plenty of water, wash with soap, seek medical attention if irritation develops
Eye Contact: Flush eyes gently with plenty of water for several minutes, remove contact lenses if present and easy to do, seek medical advice
Ingestion: Do not induce vomiting, rinse mouth, get immediate medical advice, never give anything by mouth to an unconscious person
Most Important Symptoms: Abdominal pain, dizziness, headache, nausea, vomiting, potential for serious long-term health effects on repeated overexposure
Suitable Extinguishing Media: Use water spray, dry chemical, foam, or carbon dioxide for surrounding fire
Unsuitable Extinguishing Media: No known unsuitable agents for product
Fire Hazards: Decomposes under heat to produce toxic selenium oxides, do not breathe vapor or combustion byproducts
Protective Equipment: Firefighters use self-contained breathing apparatus, protective clothing
Specific Hazards: May produce irritating, toxic fumes under fire conditions; may contribute to environmental pollution run-off
Personal Precautions: Wear chemical-resistant gloves, safety goggles, and suitable protective clothing
Spill Cleanup: Sweep up material carefully without creating dust, shovel into labeled, leak-proof containers for disposal, avoid release to environment, ventilate area
Environmental Precautions: Prevent product from entering watercourses, drains, or soil, contain spill using earth or inert absorbent
Handling: Use only with adequate ventilation, avoid inhaling dust, avoid contact with skin and eyes, do not eat, drink, or smoke during use, wash hands thoroughly after handling
Storage: Store in tightly closed container, keep in dry, cool, well-ventilated area, separate from acids, reducing agents, food, and animal feedstuffs, protect from incompatible materials
Incompatible Materials: Acids, strong reducing agents, combustible substances
Exposure Limits: Occupational Exposure Limits for selenium compounds, established in some jurisdictions
Engineering Controls: Local exhaust or general ventilation to keep airborne concentrations low
Respiratory Protection: Use an approved respirator in dusty conditions or where ventilation is inadequate
Skin Protection: Wear impervious gloves, protective clothing
Eye Protection: Safety goggles or face shield
Other Measures: Wash hands before breaks and at end of work; avoid contamination of personal clothing
Appearance: White crystalline powder
Odor: Odorless
Odor Threshold: Not applicable
pH: Neutral in water
Melting Point/Freezing Point: Decomposes before melting
Boiling Point: Not applicable
Flash Point: Not applicable
Vapor Pressure: Not available
Water Solubility: Freely soluble
Relative Density: About 2.8 g/cm3
Partition Coefficient (n-octanol/water): Not available
Decomposition Temperature: Above 500°C
Viscosity: Not applicable
Reactivity: Stable under normal storage conditions
Chemical Stability: Stable in closed container at room temperature
Possibility of Hazardous Reactions: Reacts with acids and reducing agents
Conditions to Avoid: Excessive heat, exposure to moisture or incompatible materials
Incompatible Materials: Acids, reducing agents, combustibles
Hazardous Decomposition Products: Selenium oxides, potassium oxides
Acute Toxicity (Oral): Highly toxic if swallowed (LD50 in rat: 5-20 mg/kg)
Acute Toxicity (Inhalation): Could be harmful if dust is inhaled
Skin Corrosion/Irritation: May cause skin irritation
Serious Eye Damage/Irritation: Risk of serious eye irritation
Chronic Effects: Prolonged exposure may damage liver, kidneys, nervous system
Symptoms of Exposure: Abdominal pain, nausea, vomiting, diarrhea, garlic breath, hair loss, respiratory irritation
Carcinogenicity: Selenium compounds are not classified as carcinogenic by IARC
Developmental/Reproductive Toxicity: Toxic to reproductive health with chronic exposure
Ecotoxicity: Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment
Persistence and Degradability: Inorganic compound, does not degrade, remains in environment
Bioaccumulation Potential: Tends to bioaccumulate in aquatic and terrestrial food chains
Mobility in Soil: High mobility in water; possible to leach to groundwater
Other Adverse Effects: Selenium poisoning can affect birds and animals at low concentrations over time
Disposal Methods: Dispose as hazardous waste according to local, regional, and national requirements
Container Disposal: Triple rinse containers before recycling or disposal, do not allow rinsate to contaminate environment
Precautions: Do not release into drains, soil, or surface waters, incinerate only in authorized facilities
Waste Codes: Selenium compound wastes are regulated in many regions due to toxicity
UN Number: UN3283
Proper Shipping Name: Selenium compound, solid, n.o.s.
Transport Hazard Class: Class 6.1 (Toxic substances)
Packing Group: II
Environmental Hazards: Marine pollutant
Special Precautions for Transport: Avoid release to environment, follow regulations for transportation of toxic substances
Labelling (GHS): Required hazard symbols for acute toxicity, environmental hazard
Inventory Status: Listed in European REACH, US TSCA, and other chemical inventories
Workplace Regulations: Subject to occupational exposure limits for selenium compounds
Environmental Regulations: Regulated for discharge, emissions, and waste in many jurisdictions
Reporting Requirements: Facilities using potassium selenate may be subject to reporting under environmental and health safety regulations
