Product Name: Dibenzoate Di(propylene glycol)
Chemical Family: Glycol ester
Chemical Formula: C22H26O5
CAS Number: 27138-31-4
Synonyms: Di(propylene glycol) dibenzoate, Benzene-1,2-dicarboxylic acid, dipropylene glycol ester
Recommended Use: Plasticizer, industrial solvent, chemical intermediate
Supplier Contact: Manufacturer or distributor address, phone, and emergency contact information
Emergency Phone: Available through CHEMTREC and other global hotlines
GHS Classification: Not classified as hazardous according to current GHS standards
Potential Health Hazards: Eye irritation, skin irritation, mild respiratory discomfort if inhaled as mist or vapor
Signal Word: None required
Hazard Statements: May cause mild transient irritation to eyes and skin
Precautionary Statements: Avoid direct contact with eyes, skin, and clothing; do not ingest; ensure adequate ventilation
Pictograms: No hazard pictograms required
Other Hazards: Spills create slip hazard; product may burn if involved in a fire; decompose with irritant fumes at high temperatures
Chemical Name: Di(propylene glycol) dibenzoate
CAS Number: 27138-31-4
Concentration: 98 - 100% by weight
Impurities: Trace residuals of dipropylene glycol and benzoic acid may remain from manufacture (typically below 1%)
Molecular Weight: Approximately 370 g/mol
Eye Contact: Immediately flush with plenty of clean water for at least 15 minutes, keeping eyelids open. Remove contact lenses if present. Seek medical attention if irritation persists.
Skin Contact: Remove contaminated clothing and footwear. Wash affected area thoroughly with soap and water. Do not use solvents. Seek medical advice if skin redness or discomfort continues.
Inhalation: Move person to fresh air. Rest in a position comfortable for breathing. Call for medical help if symptoms such as coughing or difficulty breathing occur.
Ingestion: Rinse mouth with water. Do not induce vomiting. Drink water to dilute. Get medical attention if feeling unwell or symptoms develop.
Most Important Symptoms: Eye and skin irritation, coughing, headache from inhalation of vapors
Notes to Physician: Symptomatic treatment with supportive care; no specific antidote available
Suitable Extinguishing Media: Water fog, foam, dry chemical, or carbon dioxide (CO2)
Unsuitable Extinguishing Media: High-pressure water jets may spread product
Specific Hazards: Burning releases dense smoke and toxic fumes such as carbon monoxide, carbon dioxide, and benzoic vapors
Special Protective Equipment: Firefighters should use self-contained breathing apparatus and operate from the upwind side
Precautions: Cool containers exposed to flames with water spray; dike fire-control water for later disposal; prevent fire-fighting run-off from entering waterways and sewers
Thermal Decomposition Products: Carbon oxides, benzoic acid, trace aromatic compounds
Personal Precautions: Avoid contact with eyes and skin; ventilate area; use appropriate personal protective equipment (PPE) such as gloves and goggles
Environmental Precautions: Prevent entry into sewers, watercourses, and confined spaces; contain with sand or inert absorbent material
Spill Cleanup Methods: Absorb large spills with inert material, sweep up, and place in suitable containers for disposal. Clean residual material with detergent and water.
Waste Disposal: See Disposal Considerations section
Notification Requirements: Notify authorities if major release contaminates water or soil
Safe Handling: Avoid direct contact with product; keep containers closed when not in use. Practice good industrial hygiene by washing hands after use.
Storage Conditions: Store in original containers tightly closed, in a cool, dry, well-ventilated place away from heat sources, sparks, and incompatible materials such as strong oxidizers
Incompatible Materials: Strong acids, bases, and oxidizing agents
Specific End Use: As a plasticizer for resins, adhesives, and coatings, or as directed in industrial settings
Transfer Precautions: Ground and bond containers when transferring to reduce static discharge risk
Occupational Exposure Limits: No current ACGIH, OSHA, or NIOSH limits established for this material
Engineering Controls: Use with local exhaust or adequate general ventilation to keep airborne concentrations low
Personal Protection:
Eye Protection: Safety glasses or goggles
Skin Protection: Chemical resistant gloves (nitrile, neoprene); protective clothing for frequent or prolonged contact
Respiratory Protection: Not typically needed unless vapor or mist is generated. Use NIOSH-approved organic vapor respirators if risk warrants.
Hygiene Measures: Wash hands, arms, and face after contact; remove contaminated clothing promptly
Environmental Controls: Implement spill and release prevention methods for workplaces handling bulk material
Appearance: Clear, colorless to pale yellow, oily liquid
Odor: Mild aromatic, faintly sweet
Odor Threshold: Not available
pH: Neutral, not applicable for non-aqueous material
Melting Point/Freezing Point: Below -50°C
Boiling Point: 220 - 230°C (estimated)
Flash Point: 195°C (open cup)
Evaporation Rate: Very low
Flammability: Not readily flammable under normal conditions
Upper/Lower Flammability Limits: Not established
Vapor Pressure: Negligible at room temperature
Vapor Density: >1 (air = 1)
Relative Density: 1.14 - 1.16 (water = 1)
Solubility in Water: <0.01%, very low
Solubility in Solvents: Soluble in alcohols, acetone, aromatic hydrocarbons
Partition Coefficient (n-octanol/water): 3.4 - 4 (estimated)
Autoignition Temperature: Approx. 420°C
Decomposition Temperature: >245°C
Viscosity: 55 - 75 cP (at 25°C)
Chemical Stability: Stable under normal storage and handling conditions
Reactivity: No hazardous reactions expected under recommended use
Hazardous Reactions: Contact with strong oxidizers can create combustion risk
Conditions to Avoid: Excessive heat, sources of ignition, direct sunlight, incompatible materials
Incompatible Materials: Strong acids, bases, oxidizing agents
Hazardous Decomposition Products: Oxides of carbon, benzoic acid, aromatic decomposition products
Polymerization: Not expected to occur
Assessment of Acute Toxicity: Low acute toxicity by oral, skin, or inhalation exposure
Oral LD50 (Rat): >5,000 mg/kg
Dermal LD50 (Rabbit): >2,000 mg/kg
Inhalation LC50 (Rat, 4h): Not determined, but low volatility suggests minimal risk
Skin Irritation: Mild, reversible irritation possible in sensitive skin
Eye Irritation: Mild, transient irritation
Respiratory Sensitization: Not expected under normal conditions of use
Skin Sensitization: Not classified as a skin sensitizer
Chronic Toxicity: Long-term exposure expected to present low risk based on similar glycols
Carcinogenicity: Not listed as carcinogen by IARC, NTP, ACGIH
Reproductive Toxicity: No evidence from animal or epidemiological studies
Mutagenicity: No data indicating mutagenic potential
Target Organ Effects: None expected
Ecotoxicity: Low acute toxicity to aquatic life expected. LC50 (Fish, 96hr): >100 mg/L
Persistence and Degradability: Readily biodegradable based on component data; breaks down by microbial action in soil and water
Bioaccumulation: Low potential due to low water solubility and expected rapid metabolism
Mobility in Soil: Expected to have low mobility; tends to adsorb to soil particulates
Other Adverse Effects: Product can create slick surface over water, posing risk for birds and aquatic mammals
Relevant Regulations: Discharge in large volumes may require permit and must follow local environmental regulations
Waste Handling Methods: Collect for disposal in accordance with local, regional, national, and international regulations. Do not allow to enter drains or watercourses.
Recommended Disposal: Incinerate in approved facility; landfill only if allowed by regulation.
Empty Container Handling: Remove product residues from containers, then recycle or dispose according to guidelines.
Waste Codes: Not hazardous waste under US RCRA; consult local listings for waste code assignments
Special Precautions: Follow all federal, state, and municipal guidelines for chemical waste
UN Number: Not regulated under UN Model Regulations
Proper Shipping Name: Dibenzoate di(propylene glycol) or chemical name as required
Transport Hazard Class: Not classified as hazardous material for transport
Packing Group: Not applicable
Marine Pollutant: Not a marine pollutant under IMDG
Special Precautions for User: Avoid releases; carry sealed containers upright; ensure labeling meets country and carrier requirements
Additional Requirements: Emergency response information and spills protocol should travel with shipped product
Inventory Status: Listed on TSCA (US), EINECS/ELINCS (Europe), DSL (Canada), AICS (Australia), ENCS (Japan), and other chemical inventories
SARA Title III: Not listed as a reportable substance under Sections 302, 304, 313
OSHA Classification: Not regulated as hazardous under OSHA Hazard Communication Standard
State Regulations: May appear on state-specific lists; check California Proposition 65 and other lists annually
REACH Status: Registered substance within Europe; data dossiers available from suppliers
WHMIS (Canada): Not classified as hazardous
Other Regulatory Information: Product safety and workplace control standards apply globally; refer to specific workplace regulations and national standards for chemical use
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