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Chemical Name: Bis(2-ethylhexyl) Adipate
Common Names: DEHA, Dioctyl Adipate
Chemical Formula: C22H42O4
Physical Appearance: Clear, oily liquid
Odor: Mild, almost undetectable
Uses: Softener in plastics, food packaging, hydraulic fluids
Health Hazards: Skin or eye irritation can develop after frequent handling. Vapors may irritate the respiratory tract if a person works in confined or unventilated spaces. High exposures can bring digestive system discomfort, especially in workplaces that involve direct handling.
Fire Hazards: Liquid will burn if exposed to sufficient heat or flame, and vapors may fuel combustion.
Environmental Hazards: Persistent in soil and water, with potential to cause long-term effects in aquatic life.
Main Ingredient: Bis(2-ethylhexyl) Adipate (CAS No. 103-23-1)
Purity: Generally above 98% in industrial applications
Impurities: Very low concentrations of other adipates or residual catalyst may appear; contaminant levels barely reach occupational exposure limits in modern facilities
Skin Contact: Wash exposed skin with soap and tepid water for several minutes. Remove contaminated clothing.
Eye Contact: Flush eyes with clean water for at least 15 minutes. Seek a medical opinion if redness or irritation continues.
Inhalation: Move the affected person outdoors or into fresh air immediately. Provide oxygen if breathing seems labored. Get medical help for severe symptoms.
Ingestion: Do not induce vomiting. Rinse mouth out with water; medical attention is necessary if discomfort persists or large amounts are swallowed.
Suitable Extinguishing Methods: Use dry chemical, foam, CO2, or water spray for small fires. Water jets can help cool down sealed containers.
Special Hazards: Thermal decomposition can release irritating fumes or smoke; in confined fires, build-up of pressure can cause containers to rupture.
Protective Equipment: Firefighters should wear self-contained breathing apparatus and full protective gear, especially in poorly ventilated hazard zones.
Personal Precautions: Wear chemical-resistant gloves, goggles, and appropriate clothing. Evacuate unnecessary personnel from spill areas.
Environmental Precautions: Prevent entry into drains, waterways, or soil. Use dikes to contain large spills.
Cleanup Methods: Absorb liquid with sand, earth, or inert material. Collect in sealed, labeled drums for proper disposal. Ventilate affected areas to disperse lingering vapors.
Handling: Use with good local ventilation to minimize build-up of fumes. Wash hands and face after working with the substance. Eating, drinking, or smoking in work areas raises accidental exposure risk.
Storage: Store in tightly sealed containers, away from direct sunlight and sources of heat or ignition. Keep out of reach of untrained personnel; use clearly labeled drums in designated storage zones. Avoid stacking containers above recommended limits to reduce chances of leaks.
Engineering Controls: Use exhaust fans or local fume extraction systems when working with large volumes or in closed settings.
Personal Protective Equipment: Wear safety goggles that fit snugly, chemical-resistant gloves, and long-sleeved garments. Use respirators designed for organic vapor exposure when airborne levels rise.
Occupational Exposure Limits: Some regions have established exposure limits for workplace air, often measured as time-weighted averages; occupational health departments set these based on animal studies and signals from long-term worker data.
State: Oily liquid
Color: Colorless to faint yellow
Boiling Point: Around 214°C to 216°C at 13 mmHg
Melting Point: Typically below -50°C
Density: About 0.92 g/cm³ at 20°C
Solubility: Virtually insoluble in water; miscible with organic solvents
Vapor Pressure: Very low, under normal laboratory and industrial temperatures
Flash Point: Ranges from 196°C to 210°C, so unlikely to ignite except in major fire incidents
Stability: Maintains chemical stability in sealed containers under recommended storage conditions. Degrades only slowly when exposed to extreme heat or strong acids.
Reactivity: Avoid contact with strong oxidizers and materials known to encourage combustion; very little reactivity under ordinary use.
Hazardous Products of Decomposition: Strong heating or burning releases CO or CO2 gases, plus acrid organic compounds.
Routes of Exposure: Inhalation, skin, eye, and ingestion
Short-Term Effects: Minor irritation of skin and mucous membranes; more notable at higher exposures
Long-Term Effects: Laboratory animals given high doses developed mild liver changes and reproductive effects; real-world exposures fall well below those levels, so risks stay low for most workers
Cancer Risks: Classified by international agencies as not classifiable for human carcinogenicity based on current animal and worker data; evidence points to minimal concern from typical environmental or workplace levels
Persistence: Breaks down slowly in water, soil, and sediments
Bioaccumulation: Laboratory studies show limited potential to build up in fish or wildlife tissues, but ecosystem monitoring continues around high-use facilities
Aquatic Toxicity: Low toxicity to fish and invertebrates at concentrations higher than those measured near plastics manufacturing sites
Environmental Concerns: Spills or ongoing industrial discharges can add to local contamination, stressing aquatic organisms and sediment balance
Waste Handling: Collect unwanted material in secure, labeled containers; keep away from incompatible chemicals
Disposal Methods: Professional hazardous waste services manage transportation and destruction by high-temperature incineration. Landfill disposal is rarely accepted, particularly in regions with strict chemical controls
Regulatory Pressures: Some districts demand documentation and proof of safe transfer, so tracking paperwork stays essential
Shipping Rules: Moves as a non-dangerous liquid according to many international guides, but hazards from spills and fire don’t disappear.
Labeling: Clear chemical labeling required on every container crossing warehouses or borders.
Packing Recommendations: Use leak-proof drums or totes, and keep upright throughout transit to prevent seepage or accidental contact with other shipments
Workplace Controls: Occupational exposure guidelines set air concentration thresholds for employees.
Environmental Laws: Most authorities demand monitoring of air and water around manufacturing plants that use or process Bis(2-ethylhexyl) Adipate.
Consumer Product Limits: Several countries set upper concentration limits in items that touch food or children’s products, based on the latest toxicology reviews.
Notification Duties: Companies often must notify regulators about imports, exports, and accidental releases, with breach penalties ranging from warning notices to fines.
