MSDS for Barium Molybdate

Identification

Product Name: Barium Molybdate
Chemical Formula: BaMoO4
CAS Number: 12026-57-2
Synonyms: Barium molybdate(VI), Molybdic acid, barium salt
Recommended Use: Industrial and laboratory processes, specialty ceramics, pigments
Supplier Details: Information from the specific manufacturer or distributor
Emergency Contact: Refer to local poison control and emergency medical services

Hazard Identification

GHS Classification: Eye irritation, Specific organ toxicity (single exposure), Acute toxicity (oral)
Signal Word: Warning
Hazard Statements: Harmful if swallowed, causes serious eye irritation, may cause damage to organs if swallowed or inhaled
Pictograms: Exclamation mark, Health hazard
Precautionary Statements: Do not eat, drink, or smoke when using; avoid inhalation and contact with eyes, skin, and clothing; wash thoroughly after handling

Composition / Information on Ingredients

Chemical: Barium Molybdate
Common Name: Barium molybdate
Concentration: 100%
CAS Number: 12026-57-2
Impurities: Trace impurities may include other barium or molybdenum compounds from the manufacturing process, generally not present in hazardous quantities under typical industrial conditions

First Aid Measures

Inhalation: Move individual to fresh air; seek medical attention if symptoms persist; give oxygen if breathing difficulty develops
Skin Contact: Remove contaminated clothing; wash skin with plenty of water and soap for at least 15 minutes
Eye Contact: Rinse cautiously with water for several minutes; remove contact lenses if present and easy to do; seek prompt medical attention
Ingestion: Rinse mouth immediately; do not induce vomiting; seek immediate medical care as barium compounds can have significant systemic toxicity

Fire-Fighting Measures

Suitable Extinguishing Media: Use dry chemicals, CO2, or foam; water spray can be used to cool down surfaces
Specific Hazards: Decomposes when heated to release toxic fumes of barium and molybdenum oxides
Protective Equipment for Firefighters: Full protective gear including self-contained breathing apparatus
Advice for Firefighters: Keep upwind and avoid breathing dust or fumes from decomposed material

Accidental Release Measures

Personal Precautions: Use personal protective equipment recommended for handling toxic powders; ensure adequate ventilation
Spill Cleanup Methods: Avoid generating dust; collect spilled material using a wet method or HEPA-filtered vacuum and transfer to suitable container for disposal; clean area with water
Environmental Precautions: Avoid contaminating soil and waterways; prevent large amounts from entering drains or local water bodies

Handling and Storage

Handling: Use only in well-ventilated areas; avoid creating and breathing dust; keep containers tightly closed
Storage: Store in a cool, dry, ventilated area away from incompatible materials such as strong acids
Incompatibilities: Avoid contact with acids, oxidizers, and reducing agents; these reactions can generate hazardous byproducts

Exposure Controls and Personal Protection

Occupational Exposure Limits: Barium compounds (as Ba) – OSHA PEL 0.5 mg/m³, ACGIH TLV 0.5 mg/m³
Engineering Controls: Local exhaust ventilation and process enclosure to limit airborne exposure
Personal Protective Equipment: Protective gloves, chemical safety goggles, lab coats, and appropriate respiratory protection for dust
Hygiene Practices: Wash hands and face after handling; do not eat, drink, or smoke in work areas; remove and wash contaminated clothing before reuse

Physical and Chemical Properties

Appearance: Fine white to off-white crystalline powder
Odor: Odorless
Odor Threshold: Not applicable
pH: Not determined in solution
Melting Point: 1,018°C (1,865°F)
Boiling Point: Decomposes before boiling
Flash Point: Non-flammable
Solubility: Insoluble in water; soluble in acids
Density: 4.65 g/cm³
Vapor Pressure: Not applicable
Partition Coefficient: Not applicable
Auto-ignition Temperature: Not applicable
Decomposition Products: Barium oxide and molybdenum oxides

Stability and Reactivity

Chemical Stability: Stable under normal ambient and anticipated storage conditions
Hazardous Reactions: Barium molybdate reacts with strong acids or reducing agents; releases hazardous fumes if decomposed at high temperature
Conditions to Avoid: Avoid exposure to moisture and excessive heat
Incompatible Materials: Strong acids (releases toxic gases), strong oxidizing or reducing agents
Hazardous Decomposition Products: Barium oxides, molybdenum oxides, toxic metal fumes

Toxicological Information

Acute Toxicity: Harmful if swallowed; may cause serious gastrointestinal injuries, vomiting, diarrhea, abdominal pain, and systemic toxicity
Inhalation: Dust can irritate the respiratory tract; high exposure causes symptoms similar to ingestion
Skin and Eye Contact: Results in local irritation, redness, and possible rash or burns in some individuals
Chronic Effects: Prolonged exposure to barium compounds may affect the nervous system, gastrointestinal tract, and muscles
Carcinogenicity: Components not listed by IARC, NTP, or OSHA as carcinogens
Mutagenicity: No known significant mutagenic effects
Reproductive Toxicity: Not classified based on available data

Ecological Information

Ecotoxicity: Toxic to aquatic life in case of significant release; barium ions can persist in soil and water
Persistence and Degradability: Inorganic compound, no inherent biodegradability; remains in the environment unless physically removed
Bioaccumulation: Barium and molybdenum may bioaccumulate in aquatic organisms
Mobility in Soil: Limited movement in soil; soluble barium and molybdenum ions migrate if pH allows
Other Adverse Effects: Chronic exposure affects certain plants and animals; avoid release into the environment

Disposal Considerations

Waste Disposal Methods: Dispose in accordance with federal, state, and local regulations; hazardous waste classification likely
Container Disposal: Use containers that prevent dispersion; triple rinse containers before disposal or recycling
Recommendation: Contact licensed professional waste disposal service to deal with substantial quantities

Transport Information

UN Number: Not classified as dangerous under UN transport regulations
Proper Shipping Name: Barium molybdate
Transport Hazard Class: Not regulated
Packing Group: Not regulated
Environmental Hazards: Not a marine pollutant under most shipping criteria, but environmental release should be avoided
Special Precautions: Protect packages against physical damage, moisture, and spillage during transport

Regulatory Information

TSCA Status: Listed on the Toxic Substances Control Act Inventory
REACH Registration: Not subject to REACH registration under current EU rules
SARA 313: Not subject to reporting under the Superfund Amendments and Reauthorization Act (Title III)
California Prop 65: Not listed as a chemical known to cause cancer or reproductive toxicity
Other Regulations: Local workplace safety, environmental, and health regulations may apply; always check details for jurisdictions where the material is used or stored