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Chemical Name: Sodium Molybdate
Common Names: Disodium dioxido(dioxo)molybdenum
CAS Number: 7631-95-0
UN Number: Not classified
Recommended Use: Corrosion inhibitor, fertilizer component, analytical reagent
Manufacturer Contact: [Company Name, Address, Emergency Phone Number]
Synonyms: Sodium molybdate dihydrate
GHS Classification: Acute toxicity (Oral, Category 4), Eye irritation (Category 2A)
Signal Word: Warning
Hazard Statements: Harmful if swallowed, Causes serious eye irritation
Pictograms: Exclamation mark, Health hazard
Precautionary Statements: Avoid breathing dust, wash hands thoroughly, do not eat or drink while handling, wear eye protection
Chemical Formula: Na2MoO4·2H2O
Concentration: Approx. 100% Sodium molybdate dihydrate
Impurities: Trace amounts of other sodium salts can occur
Supplier Details: [Supplier’s Name, Contact Information]
Inhalation: Move individual to fresh air, provide artificial respiration if not breathing, seek medical advice
Skin Contact: Remove contaminated clothing, brush material off skin, wash with soap and water
Eye Contact: Rinse with water for several minutes, keep eyelids open, remove contact lenses, get medical attention if irritation persists
Ingestion: Rinse mouth, seek medical attention, do not induce vomiting unless directed by medical personnel
Most Important Symptoms: Irritation of eyes, gastrointestinal discomfort, coughing if inhaled
Suitable Extinguishing Media: Use water spray, dry chemical, carbon dioxide, or foam
Specific Hazards: Product does not burn, may release toxic fumes of sodium oxides or molybdenum oxides under fire conditions
Protective Equipment: Firefighters should use self-contained breathing apparatus and full protective gear
Firefighting Instructions: Avoid inhaling dust or combustion products, cool affected containers with water
Personal Precautions: Evacuate area, ensure adequate ventilation, wear appropriate personal protection
Environmental Precautions: Prevent material from reaching waterways or sewers, avoid soil contamination
Methods for Cleanup: Sweep up and collect spilled solid, avoid creating dust, transfer to labeled disposal containers, clean spill area with water
Precautions for Handling: Avoid generating and breathing dust, wear recommended protective equipment, practice good hygiene
Conditions for Safe Storage: Store in tightly closed containers, in a dry, well-ventilated area away from incompatible substances such as acids
Incompatibilities: Acids, strong oxidizers
Storage Temperature: Ambient room temperature recommended
Occupational Exposure Limits: ACGIH TLV 0.5 mg/m³ (as Mo), OSHA PEL 5 mg/m³ (as Mo)
Engineering Controls: Use local exhaust ventilation to reduce dust
Respiratory Protection: Use NIOSH-approved respirators if exposure limits are exceeded
Eye Protection: Chemical safety goggles
Skin Protection: Use gloves made of neoprene or nitrile, laboratory coats recommended
Hygiene Measures: Wash hands after use, change contaminated clothing
Appearance: White crystalline powder
Odor: Odorless
Molecular Weight: 241.95 g/mol (dihydrate)
Solubility: Soluble in water
Melting Point: Decomposes at approx. 687°C
Boiling Point: Not applicable
pH: 9.5 (5% aqueous solution)
Vapor Pressure: Not applicable
Density: 3.28 g/cm³
Flash Point: Not flammable
Partition Coefficient: Not available
Chemical Stability: Stable under normal conditions
Reactivity: Chemically unreactive with water and most organic materials
Hazardous Reactions: Reacts with acids to form molybdic acid, can react with strong oxidizers
Decomposition Products: Sodium oxides, molybdenum oxides
Conditions to Avoid: Contact with strong acids or heat above decomposition temperature
Acute Toxicity: LD50 Oral (rat) 2733 mg/kg
Inhalation: Can cause respiratory tract irritation at high dust concentrations
Skin Contact: May produce irritation on prolonged contact
Eye Contact: Causes redness, irritation, or pain on direct contact
Chronic Effects: No evidence of carcinogenicity in humans, large doses over time may affect liver, kidney, or reproductive organs
Sensitization: Not expected to cause sensitization
Mutagenicity: Not identified as mutagenic based on available studies
Aquatic Toxicity: Low toxicity to most aquatic organisms, LC50 (96h, fish) >100 mg/L
Persistence and Degradability: Inorganic compound, not biodegradable, persists in environment
Bioaccumulation: Potential to bioaccumulate at high concentrations
Soil Mobility: High solubility allows migration in moist soils
Ecological Impact: Large spills may disrupt local aquatic environments or soil quality, not listed as especially hazardous to the environment by major agencies
Methods of Disposal: Dispose of according to local, regional, and national regulations, use hazardous waste facility if available
Container Disposal: Rinse emptied containers, dispose as hazardous waste
Environmental Precautions: Do not release to surface water, sewers, or uncontrolled landfills
Recommended Procedures: Solid waste landfill for non-recoverable material, recovery and recycling possible for industrial quantities
UN Number: Not regulated for transport
Transport Hazard Class: Not classified as dangerous goods
Packing Group: Not applicable
Labeling: No special labeling required under international transport rules
Special Instructions: Ship in moisture-proof containers, tie down securely to prevent spillage
TSCA: Listed
EINECS: 231-551-7
REACH: Exempt as inorganic salt
OSHA: Regulated for occupational exposure to molybdenum compounds
WHMIS Classification: D2B (Toxic material causing other toxic effects)
SARA Title III: Not considered a hazardous substance under Section 313
Other Regulations: Complies with EU and local environmental control requirements, restrictions or labeling may apply in specific jurisdictions
