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Chemical Name: 2,2',3,3',4,5',6'-Heptabromodiphenyl Ether
Synonyms: Heptabromodiphenyl Ether, BDE-183
CAS Number: 128-14-9
Appearance: Off-white to light brown powder or solid
Odor: Practically odorless
Primary Uses: Used in flame retardant applications, especially in electronic equipment and plastics
Physical Hazards: No strong reactivity with water or general construction materials, but can pose dangers in case of fire due to toxic combustion products
Health Hazards: Suspected carcinogen, chronic exposure can possibly impact endocrine function, reproductive health, and neurodevelopment
Environmental Hazards: Persistent in soil and water, bioaccumulates up the food chain, harmful to aquatic life
Signal Words: May be considered hazardous depending on local regulations
Main Ingredient: 2,2',3,3',4,5',6'-Heptabromodiphenyl Ether (BDE-183), typically found in purity above 98% in industrial forms
Impurities: Lower brominated diphenyl ethers such as tetrabromo- and pentabromo- congeners can be present in minor quantities
Inhalation: Remove to fresh air, monitor for respiratory symptoms, and seek medical attention if symptoms persist
Skin Contact: Wash affected area with soap and water, avoid rubbing, remove contaminated clothing
Eye Contact: Rinse gently with water for several minutes, remove contact lenses if present and easy to do, call for medical support if irritation remains
Ingestion: Rinse mouth, never induce vomiting unless told by medical personnel, seek immediate medical help
Suitable Extinguishing Media: Use dry chemical, foam, or CO₂; water spray may help cool fire-exposed containers
Combustion Products: Can release brominated dioxins, hydrogen bromide, and carbon monoxide, all of which are highly toxic
Protective Gear: Firefighters should wear self-contained breathing apparatus and protective clothing
Personal Precautions: Avoid contact with skin and eyes, avoid breathing in dust, use personal protective equipment such as gloves and masks
Cleanup Procedures: Carefully sweep, scoop, or vacuum to minimize dust, transfer to a properly labeled container for safe disposal, ventilate area
Environmental Precautions: Prevent entry into drains, waterways, or soil to limit ecosystem exposure
Handling Practices: Use in areas with proper ventilation, minimize dust formation, avoid generating aerosols, handle with nitrile or neoprene gloves
Storage Recommendations: Store in tightly closed containers, away from direct sunlight, heat sources, or incompatible materials like strong oxidizers
Special Considerations: Keep storage and handling areas clean and free from spills, label containers clearly, restrict access to trained personnel
Engineering Controls: Work in fume hoods or use local exhaust ventilation to reduce airborne contaminants
Personal Protective Equipment: Respiratory protection (N95 mask or higher) when risk of dust exists, chemical-resistant gloves, goggles, lab coats
Hygiene Measures: Wash hands thoroughly after handling, do not eat or drink near the product, change contaminated clothing promptly
Occupational Exposure Limits: No official limit exists internationally, but prudent workplaces establish internal benchmarks due to known toxicity concerns
Physical State: Fine powder or crystalline solid
Color: Off-white to slight brown hue
Odor: Very mild, similar to most brominated compounds
Melting Point: 176-183°C
Boiling Point: Decomposes before reaching boiling point
Solubility: Low water solubility, higher in organic solvents such as acetone or toluene
Vapor Pressure: Extremely low at room temperature
Density: Typically above 3 g/cm³
Chemical Stability: Chemically stable under normal conditions, does not readily degrade
Hazardous Reactions: Strong oxidizing agents may pose reactivity concerns
Decomposition: Releases toxic brominated fumes and particulate matter under high heat or in fire situations
Conditions to Avoid: Open flames, strong acids or oxidizers, high temperatures
Routes of Exposure: Inhalation, ingestion, dermal contact
Acute Effects: Short-term exposure may irritate nose, throat, or skin, causing itching or redness
Chronic Effects: Studies indicate possible disruptions to thyroid hormone balance, neurodevelopmental effects in children, and impacts on fertility
Carcinogenicity: Research shows potential but inconclusive links to increased risk of some cancers
Developmental Toxicity: Animal studies point to behavioral changes and lowered cognitive function from prenatal exposure
Environmental Persistence: Resists breakdown in soil and sediment, can remain for decades
Bioaccumulation: Clearly accumulates in fish and wildlife, concentrations rise up the food chain
Aquatic Toxicity: Harms fish and invertebrates even at low levels, can persist in aquatic tissues and sediment
Mobility: Stays mostly in sediment or particulate matter, with limited movement through water columns
Long-Term Risks: Research around the world documents buildup in remote regions and in high-level predators like birds of prey
Waste Management: Do not discharge into waterways or soil
Disposal Methods: Use licensed hazardous waste facilities equipped to break down persistent organic pollutants
Regulatory Guidance: Many national guidelines ban open burning or landfilling, recommend incineration at facilities with high-temperature controls and scrubbers
Transport Classification: Not typically considered dangerous under major transport codes, but should travel as hazardous waste under regional laws
Packaging Methods: Sealed, leak-proof containers designed to withstand rough handling
Special Precautions: Ensure accurate labelling, restrict access during transit, keep records and manifest documentation as required by local law
International Restrictions: Included on the Stockholm Convention list for persistent organic pollutants, targeted for elimination or restriction in many regions
National Controls: Widely regulated in North America, Europe, and parts of Asia, often via strict usage and disposal rules
Workplace Safety: Many health and environmental agencies recommend substitution with less hazardous alternatives and regular monitoring of workplace air and employee health
Product Labeling: Labels need clear hazard communication in line with GHS or local requirements, including warnings about persistence and bioaccumulation
