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Product Name: Dibutyl Oxalate
Chemical Formula: C12H22O4
CAS Number: 2367-07-1
Synonyms: Oxalic acid dibutyl ester
Recommended Use: Industrial applications including plasticizer, solvent usage, and laboratory synthesis
Supplier: Supplier details can be found on relevant purchase documentation
Contact Information: Emergency telephone numbers and company contact should be accessed directly from supplier safety teams
Classification: Flammable liquid, Eye irritant, Skin irritant, Harmful if swallowed
GHS Label Elements: Flame, Exclamation mark
Signal Word: Warning
Hazard Statements: Flammable liquid and vapor, Causes skin and eye irritation, May cause respiratory tract irritation, Harmful if swallowed
Precautionary Statements: Keep away from sources of ignition and heat, Use only non-sparking tools, Avoid inhalation of vapor, Wear suitable protective clothing and gloves, Wash exposed skin thoroughly after handling, Keep container tightly closed
Chemical Identity: Dibutyl Oxalate
Purity: Typically above 98%
Impurities: Trace amounts of oxalic acid, dibutyl phthalate, and by-products from synthesis
Other Ingredients: No other significant components
CAS Number: 2367-07-1
Inhalation: Move person to fresh air immediately, keep at rest, monitor for breathing difficulty, seek medical attention if symptoms persist
Skin Contact: Remove contaminated clothing promptly, rinse skin thoroughly with plenty of water and soap, do not reuse clothing until laundered, call a physician if irritation continues
Eye Contact: Hold eyelids apart, rinse cautiously with water for several minutes, check and remove contact lenses if easy to do so, continue rinsing, obtain medical help if discomfort or irritation develops
Ingestion: Rinse mouth with water, avoid inducing vomiting, never give anything by mouth to an unconscious person, seek medical attention promptly
Suitable Extinguishing Media: Use water fog, dry chemical powder, foam, or carbon dioxide
Unsuitable Extinguishing Media: Direct streams of water
Specific Fire Hazards: Vapors may form explosive mixtures with air, combustion releases carbon monoxide, carbon dioxide, and acrid smoke
Protective Equipment: Firefighters should wear self-contained breathing apparatus and protective firefighting clothing
Special Procedures: Move containers from fire area if safe to do so, cool exposed containers with water spray, prevent runoff from entering drains or watercourses
Personal Precautions: Evacuate unnecessary personnel, ventilate area, avoid contact with skin and eyes, avoid breathing vapors
Protective Equipment: Wear chemical-resistant gloves, splash goggles, and respiratory protection as appropriate
Environmental Precautions: Prevent entry into waterways, sewers, and drains
Clean-up Methods: Absorb spill with inert material such as sand or earth, collect and place in a suitable closed container, use non-sparking tools, wash spill site after material pickup is complete
Handling: Handle in a well-ventilated area, avoid open flames, avoid generation of mist or vapor, avoid prolonged or repeated skin contact, keep containers away from incompatible materials like oxidizers
Storage: Store in a cool, dry place, away from direct sunlight and heat sources, use containers tightly sealed and clearly labeled, segregate from food and drinking water, use secondary containment for large amounts, regularly inspect surroundings for leaks or weaknesses
Engineering Controls: Use local exhaust ventilation, keep work area well-ventilated and clean, use closed handling systems for large quantities
Occupational Exposure Limits: No specific limits set by OSHA, NIOSH, or ACGIH for this compound, keep exposure to minimum practical levels
Personal Protection: Wear safety goggles or face shield, use nitrile or neoprene gloves, chemical-resistant clothing in large scale operations, provide eye wash stations, use NIOSH-approved respirators where vapor concentration exceeds control limits
Hygiene Measures: Wash hands before eating, smoking, or bathroom use, remove contaminated clothing and wash before reuse
Appearance: Clear, colorless liquid
Odor: Mild ester-like odor
Odor Threshold: Not established
pH: Not applicable (insoluble in water)
Melting Point: -10°C
Boiling Point: 279°C
Flash Point: 125°C (closed cup)
Evaporation Rate: Not readily available
Flammability: Flammable liquid
Vapor Pressure: 0.011 mmHg at 25°C
Vapor Density: Heavier than air
Relative Density: 1.02 (water = 1)
Solubility: Insoluble in water; soluble in most organic solvents
Partition Coefficient (n-octanol/water): Log Kow estimated at 2.9
Auto-ignition Temperature: 365°C
Decomposition Temperature: Decomposes on heating
Viscosity: Not determined
Chemical Stability: Stable under standard conditions for handling and storage
Conditions to Avoid: Exposure to heat, flame, and strong oxidizers, sparks, static discharge
Incompatible Materials: Strong oxidizing agents, strong acids, alkalis
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, oxides of carbon and various hydrocarbons
Hazardous Polymerization: Not expected to occur under normal handling
Routes of Exposure: Inhalation, ingestion, skin, and eye contact
Acute Toxicity: Oral LD50 (rat) estimated at 750 mg/kg
Symptoms of Overexposure: Skin and eye irritant, possible headaches, dizziness, confusion, drowsiness following significant inhalation, nausea, vomiting after ingestion
Chronic Effects: Possible central nervous system effects, prolonged or repeated contact may defat skin
Carcinogenicity: Not classified as carcinogenic by IARC, NTP, ACGIH, or OSHA
Mutagenicity: No reliable data available
Reproductive Toxicity: Evidence is limited; not expected to be a reproductive hazard at typical exposure levels
Ecotoxicity: Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment
Persistence and Degradability: Not readily biodegradable, may persist in soil and water
Bioaccumulation Potential: The potential to bioaccumulate in aquatic life is moderate based on partition coefficient
Mobility in Soil: Low water solubility leads to limited movement through soil
Other Adverse Effects: Spills may form surface films, affecting oxygen transfer in water bodies, exposure hazard for aquatic flora and fauna
Waste Disposal Methods: Dispose of in accordance with local, regional, and national regulations for organic solvents, do not discharge into drains, consult with qualified waste management firms
Container Disposal: Triple rinse containers, puncture or crush, then offer to authorized disposal agency
Precautions: Wear suitable protective gear during all disposal operations, label and store waste securely until disposal
UN Number: 3271
Proper Shipping Name: Esters, n.o.s. (contains Dibutyl Oxalate)
Transport Hazard Class: 3 – Flammable liquids
Packing Group: III
Environmental Hazards: Not designated as marine pollutant under IMDG
Special Precautions for Users: Keep containers upright and secure during transport, avoid movement in high-temperature conditions, carry appropriate spill remediation materials
Safety, Health, and Environmental Regulations: Complies with US OSHA Hazard Communication Standard, TSCA inventory listed, EINECS listed in the EU, subject to workplace exposure control and hazardous substances guidelines
Label Elements: Container label shows signal word, hazards, precautionary statements, GHS symbols
Other Regulatory Status: Check applicable state, national, and international transport and workplace safety frameworks for updates on classification and restrictions
