Product Name: Antimony Trioxide
Chemical Formula: Sb2O3
Synonyms: Antimony(III) oxide, Flowers of antimony, Valentinite, Senarmontite
Recommended Use: Flame retardant in plastics, textiles, rubber, paints, and coatings
Supplier Details: Manufacturer and distributor information should be listed with physical address, emergency contact number, and email
CAS Number: 1309-64-4
Emergency Phone: Company-provided line or CHEMTREC: +001-800-424-9300
UN Number: Not regulated
Classification: Acute toxicity (oral, inhalation), suspected of causing cancer, specific target organ toxicity (single, repeated exposure)
GHS Label Elements: Signal word: Warning; Pictograms: Health hazard and exclamation mark
Hazard Statements: May cause cancer by inhalation, may cause harm to organs through prolonged exposure, harmful if swallowed or inhaled
Precautionary Statements: Avoid breathing dust, do not eat, drink or smoke when handling, use PPE, wash thoroughly after handling
Other Hazards: Nuisance dust can aggravate existing respiratory conditions such as asthma, chronic bronchitis, emphysema, or other lung diseases
Chemical Name: Antimony Trioxide
Concentration: Typically >99%
Impurities: Trace amounts of arsenic, lead, bismuth, iron or silica may be present depending on manufacturer
EC Number: 215-175-0
Molecular Weight: 291.519 g/mol
Inhalation: Move to fresh air, seek medical attention if breathing becomes difficult or symptoms persist
Skin Contact: Wash thoroughly with soap and water, remove contaminated clothing
Eye Contact: Rinse immediately with plenty of water for at least 15 minutes, consult an ophthalmologist
Ingestion: If swallowed, rinse mouth, do not induce vomiting, seek medical advice promptly
Most Important Symptoms: Irritation to eyes, skin, and respiratory system; prolonged exposure may cause lung effects
Note for Physicians: Treat symptomatically, monitor patient for signs of irritation or potential poisoning
Suitable Extinguishing Media: Use dry chemical, foam, carbon dioxide or water spray as relevant for surrounding material
Unsuitable Media: Avoid heavy water streams that might spread the powder
Specific Hazards: Non-combustible, but releases heavy smoke if present in a burning material; toxic antimony fumes can form at high temperatures
Protective Equipment for Firefighters: Self-contained breathing apparatus (SCBA); full protective gear to prevent dust inhalation or skin contact
Advice: Move containers away from fire area, prevent runoff from entering drains, keep upwind of fire
Personal Precautions: Avoid breathing dust, use suitable respiratory protection, ventilate area
Environmental Precautions: Prevent spread into soil, sewers, and waterways as it poses a risk to aquatic life
Cleanup Methods: Sweep or vacuum spills using HEPA-filtered equipment, avoid generating dust, place in labeled waste container for disposal
Decontamination: Wash spill site with plenty of water after cleanup, ensure local regulations on waste disposal are followed
Advice for Non-Emergency Personnel: Keep away from spill area until proper cleanup is complete
Safe Handling: Keep exposure to a minimum with adequate ventilation, use closed handling systems, avoid creating dust clouds
PPE: Wear dust masks, safety glasses or full face shields, gloves, and protective clothing
Conditions for Storage: Store in tightly closed containers, in a cool, dry, ventilated place, separate from acids and food items
Incompatible Materials: Avoid contact with strong oxidizing agents, hydrogen fluoride, and acids
Special Precautions: Post warning signs in storage and work areas, implement regular training for personnel
OELs: OSHA PEL: 0.5 mg/m³ (TWA), ACGIH TLV: 0.5 mg/m³ (TWA)
Engineering Controls: Use local exhaust ventilation, process enclosure if feasible, regular air monitoring
Personal Protection: Dust respirators, safety goggles, impermeable gloves, lab coats or chemical-resistant clothing
Hygiene Measures: Wash hands and face thoroughly after handling, never eat or drink in work area, change clothes after exposure
Environmental Controls: Regularly monitor workplace and emissions, use containment to prevent environmental release
Appearance: White, odorless, crystalline powder
Odor: None
Odor Threshold: Not applicable
Melting Point: 656°C (1213°F)
Boiling Point: 1550°C (2822°F) at 1 atm
Solubility: Practically insoluble in water, soluble in strong acids and alkalis
Vapor Pressure: Negligible at room temperature
pH: Not applicable
Density: 5.67 g/cm³ at 25°C
Flash Point: Not flammable
Decomposition Temperature: Begins to decompose at >1400°C, releasing antimony and oxygen
Partition Coefficient: Not established
Chemical Stability: Stable under recommended storage conditions
Hazardous Reactions: Reacts with strong acids to produce toxic gases; exothermic reaction possible with strong oxidizers
Conditions to Avoid: Excessive moisture, high temperatures, incompatible substances
Incompatible Materials: Oxidizing agents, reducing agents, acids (especially hydrofluoric acid)
Decomposition Products: Antimony metal, antimony oxides, fumes when subjected to high heat or fire
Polymerization: Will not occur
Acute Exposure: Irritation of eyes, skin, and mucous membranes, cough, shortness of breath
Chronic Exposure: Prolonged inhalation linked to inflammation in the lungs, pneumoconiosis; possible carcinogen (IARC Group 2B)
Routes of Entry: Inhalation, skin contact, eye contact, ingestion
LD50 (oral, rat): >20000 mg/kg
Symptoms of Overexposure: Nausea, vomiting, abdominal pain, muscle pain, skin rashes
Carcinogenicity: Listed by IARC as possibly carcinogenic to humans; OSHA does not regulate as a carcinogen
Other Data: May interfere with potassium-dependent enzymes in the body, animal studies show effects on blood and lungs
Aquatic Toxicity: Harmful to aquatic organisms, low to moderate acute toxicity to fish and invertebrates
Mobility: Low in soil due to insolubility, may leach in presence of strong acids
Persistence and Degradability: Not biodegradable; persists in environment
Bioaccumulation: Moderate potential; accumulates in aquatic and terrestrial organisms
Other Ecological Risks: Long-term environmental impacts if released; special concern for contamination near water bodies and food chains
Waste Treatment Methods: Dispose of in accordance with local, regional, and national regulations; secure landfill preferred for solid waste
Contaminated Packaging: Rinse containers, offer for recycling or dispose as hazardous waste
Environmental Precautions: Prevent entry to sewers, soil, or surface water; report unintended releases
Additional Notes: Do not attempt to incinerate, as toxic fumes may be released
UN Number: Not classified as a hazardous material for land, sea, or air transport
UN Proper Shipping Name: Antimony Trioxide
Transport Hazard Class: Not regulated
Packing Group: Not regulated
Special Precautions: Avoid damage to containers and minimize risk of spills, label packages clearly according to local rules
Transport in Bulk: Use sealed containers designed to prevent dust emissions
Other Transport Information: Advise carriers about dust hazards and emergency procedures
USA: Subject to reporting under SARA Title III, Section 313; regulated under TSCA and listed on the TSCA inventory
Europe: Listed on REACH and EINECS (EC 215-175-0); subject to classification and labeling directives
Canada: Listed on DSL/NDSL; workplace hazard coded; regulated by WHMIS
Global: IARC classified as Group 2B carcinogen (possibly carcinogenic to humans); countries have own occupational exposure and labeling regulations
Other Regulations: Various local occupational and environmental standards may apply; recommended to reference country-specific guidelines for storage, handling, and labeling
