Chemical Name: Dibutyl Phthalate
Common Names: DBP
Chemical Formula: C16H22O4
CAS Number: 84-74-2
Synonyms: 1,2-Benzenedicarboxylic acid, dibutyl ester
Recommended Uses: Plasticizer in plastics, adhesives, printing inks, and coatings
Supplier Details: Manufacturer or supplier name, address, and emergency contact number printed on container label and accompanying documentation
Hazard Classification: Reproductive toxicity (Category 1B), Acute aquatic toxicity (Category 1), Chronic aquatic toxicity (Category 2)
Signal Word: Danger
Pictograms: Health hazard, Environmental hazard
Hazard Statements: May damage fertility or the unborn child, very toxic to aquatic life, toxic to aquatic life with long lasting effects
Precautionary Statements: Avoid breathing vapors, wear protective gloves/eye protection, do not release into environment, wash thoroughly after handling, obtain special instructions before use, keep container tightly closed
Substance: Dibutyl Phthalate
Concentration: 99% or greater
Impurities/Other Ingredients: Minor impurities from production such as isomeric phthalates can occur in trace amounts, rarely exceeding 1% total
EC Number: 201-557-4
Inhalation: Remove person to fresh air, keep warm and at rest, medical attention if symptoms persist or breathing becomes difficult
Skin Contact: Remove contaminated clothing immediately, wash skin thoroughly with soap and water, seek medical advice if irritation develops
Eye Contact: Rinse eyes cautiously with plenty of water for at least 15 minutes, lift upper and lower eyelids, get medical attention if irritation occurs
Ingestion: Rinse mouth with water, do not induce vomiting, seek immediate medical attention, never give anything by mouth to a person who is unconscious
Most Important Symptoms: Can irritate skin and eyes, inhalation might lead to headache or dizziness, reproductive system may be affected by long-term exposure
Suitable Extinguishing Media: Foam, dry chemical powder, carbon dioxide, water spray (not direct jet)
Unsuitable Media: Do not use high-pressure water stream
Specific Hazards: Heated containers can burst, combustion can generate toxic gases such as carbon monoxide, carbon dioxide, phthalic anhydride, and irritating fumes
Special Protective Equipment: Firefighters need self-contained breathing apparatus and full protective clothing
Advice for Firefighters: Remove unaffected containers from fire area if safe, cool containers exposed to fire with water spray, control run-off water to prevent environmental contamination
Personal Precautions: Wear chemical resistant gloves, safety goggles, and appropriate clothing, prevent skin and eye contact, ensure adequate ventilation
Environmental Precautions: Prevent entry into sewers, soil, and waterways, notify authorities if a significant spill occurs
Methods for Clean-up: Absorb liquid with inert material such as sand or earth, collect in labeled containers for disposal, clean contaminated area with detergent and water, ventilate area thoroughly
Safe Handling: Use only in well-ventilated areas, avoid contact with skin, eyes, and clothing, do not eat, drink, or smoke during handling, wash hands after use
Storage Requirements: Store in tightly closed containers, in a cool, dry, and well-ventilated location away from heat or open flames, keep away from incompatible substances such as strong oxidizing agents and acids, clearly label containers, keep away from foodstuffs and animal feed
Occupational Exposure Limits: OSHA PEL: 5 mg/m³ (8-hour TWA), ACGIH TLV: 5 mg/m³ (8-hour TWA)
Engineering Controls: Use process enclosures, local exhaust ventilation, or other engineering controls to keep airborne levels below recommended limits
Personal Protective Equipment: Chemical-resistant gloves (nitrile, neoprene), approved safety goggles, protective clothing to prevent skin contact, use organic vapor/particulate respirators for exposure above limits or during spill cleanup
Appearance: Colorless to faint yellow oily liquid
Odor: Slight aromatic
Odor Threshold: 0.21 ppm
pH: Not applicable
Melting Point: -35 °C
Boiling Point: 340 °C
Flash Point: 157 °C (closed cup)
Evaporation Rate: Not determined
Vapor Pressure: 2.7 × 10⁻³ mmHg at 25 °C
Vapor Density: 10.6 (air = 1)
Relative Density: 1.05 g/cm³ at 20 °C
Solubility: Insoluble in water, soluble in organic solvents such as ethanol, acetone, benzene
Partition Coefficient (n-octanol/water): log Kow 4.5
Decomposition Temperature: >400 °C
Viscosity: 77 mPa·s at 25°C
Chemical Stability: Stable under normal conditions of storage and handling
Conditions to Avoid: Heat, sparks, open flame, prolonged exposure to elevated temperatures
Incompatible Materials: Strong oxidizers, strong acids, alkalis
Hazardous Decomposition Products: Upon combustion or breakdown, produces carbon monoxide, carbon dioxide, phthalic anhydride, and various hydrocarbons
Polymerization: Not known to occur
Acute Toxicity: Oral LD50 (rat): 8000 mg/kg, Dermal LD50 (rabbit): >20000 mg/kg
Skin Corrosion/Irritation: Slightly irritating to skin
Serious Eye Damage/Irritation: May cause mild irritation
Respiratory Sensitization: Not classified as a respiratory sensitizer
Germ Cell Mutagenicity: Not classified as mutagenic
Carcinogenicity: Not classified as carcinogenic to humans by IARC; some animal studies show increased risk
Reproductive Toxicity: Impacts reproductive systems causing reduced fertility, developmental issues in animal studies
Other Health Effects: Prolonged exposure may cause dizziness, headache, fatigue
Ecotoxicity: Very toxic to aquatic organisms (LC50 for fish ranges from 0.42 to 3.2 mg/L)
Persistence and Degradability: Moderately persistent in the environment, slow degradation under anaerobic conditions
Bioaccumulative Potential: Significant (log Kow 4.5), accumulates in aquatic organisms
Mobility in Soil: Moderately mobile, binds to organic matter
Other Adverse Effects: Disrupts reproductive function in aquatic species, may contribute to long-term ecosystem harm
Waste Treatment Methods: Collect and transfer to labeled containers for disposal by licensed hazardous waste contractor
Disposal of Contaminated Packaging: Triple rinse then dispose of containers according to local, national, and regional regulations
Precautions: Do not release into drains, soil, or natural waterways, incineration under controlled conditions preferred
UN Number: 3082
Proper Shipping Name: Environmentally hazardous substance, liquid, n.o.s. (Dibutyl Phthalate)
Transport Hazard Class: 9 (Miscellaneous dangerous substances and articles)
Packing Group: III
Environmental Hazards: Marine Pollutant
Special Precautions for User: Avoid release during transport, keep containers upright and secure
US Regulations: Listed on TSCA Inventory, subject to SARA Title III Section 313 (Toxic Release Inventory), regulated as a hazardous substance by OSHA
EU Regulations: Listed as a Substance of Very High Concern (SVHC) under REACH, restrictions under Annex XVII for use in toys and childcare items
Canadian Regulations: Listed on the Canadian Domestic Substances List (DSL), subject to CEPA restrictions
Other National/International Listings: Included in AICS (Australia), IECSC (China), ENCS (Japan), KECI (Korea), PICCS (Philippines)
Labeling Requirements: Hazard statements, precautionary statements, product identification, supplier identification required on containers
