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Chemical Name: Tert-Butyl Peroxy-2-Ethylhexanoate
Synonyms: Peroxyester TBPEH
CAS Number: 3006-82-4
Recommended Use: Polymerization initiator, crosslinking agent for plastics and rubbers
Supplier: Manufacturer contact details on label or package
Emergency Contact: Refer to national poison control center or local emergency response numbers
Product Form: Liquid, colorless to pale yellow, distinct odor
Classification: Organic peroxide type E (self-accelerating decomposition temperature below 60°C), skin irritant (Category 2), specific target organ toxicity (single exposure, Category 3), hazardous to the aquatic environment (acute Category 2, chronic Category 3)
Signal Word: Danger
Hazard Statements: May cause fire or explosion (strong oxidizer), causes skin and eye irritation, may cause respiratory irritation, harmful to aquatic life with long lasting effects
Precautionary Statements: Keep away from heat, sparks, open flames, incompatible materials, and direct sunlight; avoid breathing fumes or vapors; avoid contamination with combustibles; wash hands thoroughly after handling; use outdoors or in well-ventilated area
Chemical Identity: Tert-Butyl Peroxy-2-Ethylhexanoate
Concentration: 52% to 100% by weight
Impurities: May include stabilizers or inert diluents depending on supplier, check specific batch data
Other Ingredients: Typically not present above reportable thresholds (consult supplier SDS for detailed trace ingredient breakdown)
Inhalation: Move affected person to fresh air as quickly as possible; seek medical attention for breathing difficulty or persistent cough
Skin Contact: Remove contaminated clothing immediately; flush skin with soap and water for at least 15 minutes; medical attention for persistent redness or irritation
Eye Contact: Rinse eyes with water for 15 minutes, lifting eyelids occasionally; avoid rubbing; obtain medical attention if irritation continues
Ingestion: Do not induce vomiting; rinse mouth with water; seek immediate medical attention; never give anything by mouth to an unconscious person
Symptoms: Itching, burning sensation, redness, shortness of breath, headache, nausea
Suitable Extinguishing Media: Water spray, foam, dry chemical, carbon dioxide (CO2)
Unsuitable Media: Do not use a solid water stream as it may spread fire
Specific Hazards: Decomposition may release flammable gases, risk of explosive rupture from closed containers exposed to heat; thermal decomposition produces carbon oxides and acrid fumes
Protective Equipment for Firefighters: Self-contained breathing apparatus (SCBA), full protective gear, chemical-resistant suit
Special Procedures: Cool containers with flooding quantities of water from a safe distance; remove containers from fire area if safe; avoid contact with water-reactive substances
Personal Precautions: Evacuate unprotected personnel; avoid inhalation, skin, or eye contact; wear chemical protective clothing and respiratory protection
Environmental Precautions: Keep away from drains, surface water, and soil as product may impact aquatic organisms
Methods for Clean-Up: Absorb spill with non-combustible, inert material (vermiculite, sand); collect residues in dedicated container for disposal; ventilate affected area thoroughly; dispose material according to local, regional, and national regulations
Handling: Use only in areas with proper ventilation and away from ignition sources; avoid damaging containers; prevent contamination with incompatible substances such as strong acids, bases, reducing agents, and combustible materials
Storage Conditions: Store in original, tightly closed container in a cool, well-ventilated place below 30°C, out of direct sunlight, and away from all sources of ignition; keep separated from flammable, corrosive, or reactive materials; temperature control and monitoring highly recommended; keep away from food and drink
Special Requirements: Do not return unused product to original container; do not reuse empty containers; maintain inventory control to minimize storage times; inspect containers regularly for signs of leakage or decomposition
Exposure Limits: No OSHA PEL or ACGIH TLV established for this product; use workplace exposure limits for similar organic peroxides if applicable
Engineering Controls: Forced ventilation, local exhaust, explosion-proof equipment, and process enclosure when feasible
Personal Protective Equipment: Chemical safety goggles; face shield during handling operations; solvent-resistant gloves (nitrile or neoprene recommended); flame-retardant or chemically resistant clothing; suitable respirator such as organic vapor cartridge or air-supplied respirator during high-risk or spill conditions
Hygiene Measures: Wash hands and exposed skin thoroughly before breaks and at the end of the work shift; do not eat, drink, or smoke in work area; launder contaminated clothing before reuse
Appearance: Colorless to pale yellow liquid
Odor: Fruity, distinct odor
Molecular Weight: 230.3 g/mol
pH: Not applicable
Melting/Freezing Point: Not available (remains liquid at ambient temperatures)
Boiling Point: Decomposes before boiling
Decomposition Temperature: 60°C (self-accelerating), avoid exceeding storage temperature guidelines
Vapor Pressure: Low at room temperature
Solubility: Insoluble in water; soluble in organic solvents (esters, hydrocarbons, ketones)
Density: Approx. 0.89 g/cm³ (20°C)
Flash Point: Not applicable (decomposes)
Explosion Limits: Product is an explosive hazard when heated or contaminated
Partition Coefficient: Not established (expected logP >3, high organic phase solubility)
Stability: Unstable at elevated temperatures or when in contact with incompatible materials; decomposes rapidly above 60°C
Hazardous Reactions: Violent reaction with strong acids, bases, reducing agents, amines, and combustible substances
Decomposition Products: Carbon oxides (CO, CO2), hydrocarbons, and potentially toxic fumes
Conditions to Avoid: Heat, sunlight, mechanical shock, sources of ignition, contamination with other chemicals
Acute Toxicity: Low to moderate toxicity by inhalation, ingestion, and skin absorption
Potential Health Effects: Skin irritation, eye irritation, possible allergic reactions, headaches, dizziness, respiratory discomfort
Chronic Effects: Prolonged exposure may result in dermatitis or respiratory sensitization; limited evidence regarding carcinogenicity or reproductive toxicity
LD50: Oral rat >3,000 mg/kg (reported for similar peroxides, refer to supplier data)
Symptoms: Burning sensation, nausea, coughing, shortness of breath, headache, skin dryness or cracking
Medical Conditions Aggravated: Existing respiratory, skin, or eye conditions
Aquatic Toxicity: Harmful to aquatic organisms in short-term and long-term exposures
Persistence and Degradability: Breaks down over time via hydrolysis and biodegradation, but may persist in sediment or when transferred to soils
Bioaccumulation: Potential for moderate to high bioaccumulation based on logP analysis
Mobility in Soil: Mobile in the environment due to organic phase solubility
Other Information: Avoid release to environment; spills on soil or water need immediate attention using absorbents and safe disposal procedures
Disposal Methods: Dispose of at a licensed hazardous waste facility in compliance with local, state, and federal regulations; do not pour unused product down drains or sewers
Contaminated Packaging: Rinse with suitable solvent, then destroy container by landfill or incineration per local ordinances
Precautions: Do not return spilled or contaminated product to storage; keep waste containers tightly closed and properly labeled
UN Number: UN 3109
Proper Shipping Name: Organic Peroxide Type E, Liquid (Tert-Butyl Peroxy-2-Ethylhexanoate)
Hazard Class: 5.2 (Organic Peroxides)
Packing Group: II
Labels: Oxidizer, organic peroxide
Special Transport Precautions: Keep container upright and secure during transit; avoid stacking; maintain temperature control below decomposition thresholds; ensure trained personnel handle transport procedures
Regulatory Transport Codes: ADR/RID, IMDG, IATA rules apply; environmental hazards must be labeled where required
TSCA Status: Listed
SARA Title III: Subject to reporting as an immediate and delayed health hazard
OSHA Status: Regulated under Process Safety Management Standard as hazardous chemical
European Classification: EC No 221-109-1; classified as dangerous according to European Directive 67/548/EEC; symbol: O (Oxidizer), Xi (Irritant); risk phrases R7, R36/38, R52/53
WHMIS Classification: Class C (oxidizing material), Class D2B (toxic material)
Other Regulations: Refer to national and regional guidelines, fire codes, workplace control laws, and environmental protection directives for organic peroxides and oxidizers
