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Product Name: Butyl Phthalate
Chemical Description: Di-n-butyl phthalate (DBP)
CAS Number: 84-74-2
Molecular Formula: C16H22O4
Use: Plasticizer in manufacturing plastics, rubber, adhesives, inks, cosmetics
Manufacturer Contact: Supplier details on purchase documentation or package label
Synonyms: Dibutyl phthalate, DBP, 1,2-Benzenedicarboxylic acid, dibutyl ester
Emergency contact: National chemical safety hotline
Hazard Class: Reproductive toxicity, skin and eye irritant
GHS Label Elements: Signal word: Warning; hazard pictograms: exclamation mark, health hazard
Possible Effects: Nausea, headache, skin irritation, reproductive harm
Routes of Exposure: Inhalation, skin contact, eye contact, ingestion
Hazard Statements: Causes serious eye irritation, suspected of damaging fertility or the unborn child, may cause drowsiness or dizziness, causes skin irritation
Precautionary Statements: Avoid breathing vapor or mist, wear protective gloves and eye protection, wash thoroughly after handling, avoid release into environment
Main Ingredient: Di-n-butyl phthalate (purity typically > 99%)
CAS Number: 84-74-2
EC Number: 201-557-4
Impurities: May contain trace levels of phthalic acid, butanol, and water depending on batch and supplier
Mixtures: Not typically sold as a mixture, though lab-grade samples might contain stabilizers identified on the package label
Inhalation: Move affected individual to fresh air, keep at rest, consult physician if symptoms appear
Skin Contact: Remove contaminated clothing, wash exposed skin with soap and water for several minutes, seek medical advice if irritation develops
Eye Contact: Rinse eyes gently with plenty of water for at least 15 minutes, keep eyelids open, get immediate medical attention
Ingestion: Rinse mouth thoroughly, do not induce vomiting, contact poison control center or local physician without delay
Notes for Doctor: Treat symptomatically based on exposure, monitor for signs of respiratory distress, irritation, or reproductive effects
Suitable Extinguishing Media: Use carbon dioxide, dry chemical powder, alcohol-resistant foam, or water spray
Unsuitable Extinguishing Media: Straight streams of water may spread burning product
Specific Hazards: Vapors may form explosive mixtures with air, decomposition products include carbon monoxide, carbon dioxide, and toxic fumes
Protective Equipment for Firefighters: Self-contained breathing apparatus, full protective clothing
Special Instructions: Cool exposed containers with water spray to prevent fire spread; avoid runoff into drains and watercourses
Personal Precautions: Wear protective equipment including gloves, goggles, and respiratory protection if ventilation is inadequate
Environmental Precautions: Prevent product from entering watercourses, drains, and soil
Cleanup Methods: Absorb with inert material (sand, earth, vermiculite), collect into chemical waste containers, ventilate area thoroughly
Decontamination: Wash residues from spill area with plenty of water and non-flammable detergent
Disposal: Dispose of as hazardous chemical waste according to local regulations, do not hose down drains
Handling: Work under fume hood where possible, avoid inhalation of vapors, prevent direct skin or eye contact, wash hands after use, prohibit eating and drinking in work areas
Storage Conditions: Store in tightly closed, labeled containers, cool dry place, separate from strong acids, bases, and oxidizers, ventilation in storage area recommended
Packaging Material: Use original containers or chemically compatible bottles, check for leaks regularly
Incompatibilities: Strong oxidizing agents, alkalies, strong acids
Occupational Exposure Limits: ACGIH TLV: 5 mg/m3 (8-hour TWA), OSHA PEL: Not established for DBP
Engineering Controls: Local exhaust ventilation or chemical fume hood, eye wash stations in immediate area
Personal Protective Equipment: Nitrile or PVC gloves, chemical splash goggles, protective clothing for skin exposure, appropriate respirator in poorly ventilated spaces
Hygiene Measures: Wash hands before breaks and after handling, do not breathe vapor or mist
Environmental Controls: Prevent release into drains, surface water, or soil, adopt spill mitigation measures
Appearance: Colorless to pale yellow oily liquid
Odor: Faint aromatic
Melting Point: -35°C
Boiling Point: 340°C
Flash Point: 166°C (closed cup)
Vapor Pressure: 0.0012 mmHg at 25°C
Solubility: Slightly soluble in water (13 mg/L at 25°C), soluble in organic solvents
Relative Density: 1.045 g/cm3 at 20°C
Viscosity: Thick
pH: Not applicable (neutral in aqueous solution)
Partition Coefficient (log Kow): 4.5 – 4.9 (estimate)
Chemical Stability: Stable at ambient temperature and pressure under normal storage and handling conditions
Reactivity: No significant reactivity under normal conditions
Potentially Hazardous Reactions: May react with strong oxidizers causing fire hazard
Conditions to Avoid: Heat, flames, sparks, contact with incompatible chemicals (bases, acids, strong oxidizers)
Decomposition Products: Carbon dioxide, carbon monoxide, phthalic anhydride, other toxic gases under fire conditions
Acute Toxicity: Oral LD50 (rat): 8,000 mg/kg
Skin Corrosion/Irritation: May cause mild irritation in prolonged or repeated exposure
Serious Eye Damage/Irritation: Causes moderate irritation
Respiratory Sensitization: Inhalation of vapor may lead to throat irritation, cough, drowsiness, dizziness
Reproductive Toxicity: Evidence from animal studies suggests risk of reproductive effects in prolonged or high dose situations
Carcinogenicity: Not classified as carcinogen by IARC, NTP, or OSHA
Chronic Toxicity: Extended exposure may affect liver, kidneys, testicular tissue
Medical Considerations: Personnel with pre-existing skin, liver or reproductive disorders should avoid prolonged contact
Ecotoxicity: Harmful to aquatic organisms, may cause long-term adverse effects in aquatic environments
Persistence and Degradability: Moderate persistence, slow biodegradation in soil and water
Bioaccumulative Potential: Recognized potential to bioaccumulate in aquatic species
Mobility in Soil: Low mobility, binds to sediment and organic material
Other Adverse Effects: Phthalates have been detected in aquatic environments and are subject to environmental regulations and monitoring programs; advisable to prevent any spillage or release into waterways to protect aquatic life
Waste Treatment Methods: Treat as hazardous chemical waste, use chemical incineration with afterburner and scrubber
Disposal Containers: Seal in approved containers compatible with DBP, label properly for hazardous waste
Local Regulations: Consult local, state, and national hazardous waste regulations to ensure compliance
Recycling: Not suitable for recycling or landfill disposal
Contaminated Packaging: Decontaminate before reuse or preferably dispose of as hazardous waste
UN Number: 3082
UN Proper Shipping Name: Environmentally hazardous substance, liquid, n.o.s. (includes di-n-butyl phthalate)
Transport Hazard Class: 9
Packing Group: III
Environmental Hazards: Marine pollutant
Transport Precautions: Keep containers tightly closed, upright, avoid rough handling and storing with incompatible substances, label all transport containers, notify carriers of hazards
Regulatory Packing Instructions: Follow ADR, IMDG, ICAO/IATA guidelines based on shipping method
OSHA Status: Regulated as hazardous chemical
TSCA: Listed on US Toxic Substances Control Act Inventory
SARA Title III: May be subject to Section 313 (Toxic Chemical Release Reporting)
EU Regulations: Classified as SVHC (Substance of Very High Concern) under REACH, subject to authorization for some uses
California Proposition 65: Listed as chemical known to the State of California to cause reproductive toxicity
International Inventories: Included in Australia AICS, Canada DSL, Japan ENCS, Korea ECL, Philippines PICCS, New Zealand NZIoC
Labeling Requirements: Follow GHS and local standards for labeling on all containers, workplace postings, and transport documentation
