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Product Name: Tert-Butyl Peroxy-2-Ethylhexanoate
Recommended Use: Industrial initiator, crosslinking agent, polymerization process aid
Supplier: Manufacturer and distributor details included on packaging label
Emergency Phone: Contact details found on shipment document
Synonyms: Peroxide, tert-butyl, 2-ethylhexanoate
CAS Number: 3006-82-4
Type B Diluent: Proprietary hydrocarbon mixture (≥68%)
UN Number: UN 3105 (Applicable to diluted peroxide mixtures)
Recommended Restrictions: Not suitable for consumer use, laboratory reference only under strict supervision
Classification: Organic peroxide type B, Acute toxicity (oral), Skin irritation, Eye irritation, Specific target organ toxicity (single exposure), Hazardous to the aquatic environment
Signal Word: Danger
Hazard Statements: Heating may cause fire or explosion. Harmful if swallowed. Causes skin irritation. Causes serious eye irritation. May cause drowsiness or dizziness. Toxic to aquatic life with long lasting effects.
Pictograms: Flame, Exclamation Mark, Environment
Precautionary Statements: Keep away from heat, sparks, open flames, and hot surfaces. Store in original container at recommended temperature. Avoid breathing vapors or mists. Use only outdoors or in well-ventilated area. Do not eat, drink, or smoke during use. Avoid release to the environment.
Chemical Name: Tert-Butyl Peroxy-2-Ethylhexanoate
Concentration: Not more than 32%
CAS Number: 3006-82-4
Type B Diluent: Hydrocarbon solvent (paraffinic / aliphatic), not less than 68%
Impurities: Residual stabilizers and additives negligible for risk assessment
Additives: None intentionally added
Hazardous Constituents: Tert-Butyl Peroxy-2-Ethylhexanoate as primary concern, dilution controls overall reactivity
Inhalation: Remove person to fresh air. Support breathing if needed with oxygen. Get medical attention if symptoms worsen.
Skin Contact: Remove contaminated clothing, rinse skin with water for at least 15 minutes. Soap can reduce residue. Seek medical advice for persistent irritation.
Eye Contact: Rinse with clean water for 15 minutes, lifting eyelids. Remove contact lenses if present and easy to do. Obtain prompt medical aid.
Ingestion: Rinse mouth. Do not induce vomiting. Seek immediate medical attention. Never give anything by mouth to someone unconscious.
Most Important Symptoms: Burning, redness, tearing, nausea, dizziness, headache.
Special Advice to Physician: Treat symptomatically, possible aspiration hazard. Risk of delayed effects due to hydrocarbon solvent.
Suitable Extinguishing Media: Water spray, large volumes of water, foam, dry chemical powder. Do not use carbon dioxide on fire involving large quantities.
Specific Hazards: Heating triggers violent decomposition and explosion. Releases toxic fumes, including carbon oxides and hydrocarbons.
Protective Equipment: Self-contained breathing apparatus and full protective gear. Keep containers cool with flooding quantities of water.
Special Procedures: Evacuate area. Avoid breathing decomposition gases. Prevent runoff from entering drains and natural water sources.
Explosion Sensitivity: Sensitive to shock, friction, heat. Diluent reduces, but does not eliminate, peroxide reactivity.
Personal Precautions: Evacuate unnecessary personnel. Wear chemical splash goggles, gloves, long-sleeve coveralls, and positive pressure respiratory protection.
Environmental Precautions: Block entry to soil, waterways, drains. Inform environmental authorities in case of large-scale release.
Spill Response: Absorb spill with inert noncombustible medium (clay, sand, vermiculite). Shovel into approved, labeled waste container for proper disposal.
Decontamination: Wash spill area thoroughly with water and detergent once material is removed.
Avoid: Use of combustibles or reducing agents during cleanup. No smoking in cleanup zone.
Handling: Work in dedicated, well-ventilated areas away from food and incompatible substances. Minimize exposure by using personal protective equipment. Do not handle broken or leaking containers.
Storage: Use original container with vented cap. Keep below 30°C, away from direct sunlight, heat sources, reducing agents, acids, alkalis, and ignition sources. Segregate from incompatible materials like strong oxidizers, combustibles, or amines.
Separation: Store apart from organic acids, metals, and peroxides of different class.
Storage Stability: Avoid freezing or temperatures above recommended range.
Exposure Limits: No established occupational exposure limits for this mixture.
Engineering Controls: Provide mechanical exhaust or general room ventilation to keep vapor concentrations low. Prevent build-up of static electricity.
Respiratory Protection: Use NIOSH-approved chemical cartridge respirator if vapors exceed safe limits or ventilation is insufficient.
Skin Protection: Wear chemical-resistant gloves (nitrile or neoprene), apron, and boots. Replace contaminated gear promptly.
Eye Protection: Chemical splash goggles, faceshield during pouring or clean-up.
Work Practices: Avoid contact with skin, eyes, clothing. Wash hands thoroughly after handling. Do not eat, drink, or smoke in use areas.
Hygiene Measures: Remove and launder contaminated clothing before reuse.
Appearance: Clear, colorless to pale yellow liquid
Odor: Mild, hydrocarbon-like odor
Odor Threshold: Not available
pH: Not applicable (non-aqueous)
Melting/Freezing Point: Below -20°C
Boiling Range: Not measured, mainly determined by diluent, above 150°C
Flash Point: Above 61°C (diluent suppresses peroxide reactivity)
Autoignition Temperature: Not determined
Decomposition Temperature: Starts above 40°C, rapid above 60°C
Vapor Pressure: Low at 20°C
Solubility: Insoluble in water, miscible with organic solvents
Partition Coefficient (log Kow): Not established
Viscosity: Moderate, flows easily at room temperature
Density: 0.87–0.91 g/cm³ (mixture dependent)
Evaporation Rate: Slower than diethyl ether
Explosive Properties: Violent decomposition at elevated temperatures or confinement
Oxidizing Properties: Strong due to organic peroxide functional group
Chemical Stability: Stable only with proper dilution and below recommended temperatures. Pure peroxide decomposes rapidly.
Reactivity: Vigorous reaction with acids, reducing agents, heavy metals, and incompatible organics.
Conditions to Avoid: Contamination, heat, open flame, shock, friction, UV light, and static discharge.
Incompatible Materials: Strong acids, amines, heavy metal salts, accelerators, organic substances liable to rapid oxidation.
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, irritating organic vapors.
Polymerization: Not a polymerization initiator but can violently decompose if triggered.
Acute Toxicity: Harmful if swallowed, symptoms include abdominal pain, nausea, drowsiness, dizziness. Limited skin absorption but irritation possible.
Skin Corrosion/Irritation: Causes moderate irritation with prolonged or repeated exposure.
Serious Eye Damage/Irritation: Risk of redness, pain, and tearing, particularly with direct splash.
Respiratory Sensitization: Vapors may cause headache, lightheadedness, or respiratory discomfort.
Carcinogenicity: No component listed by IARC, NTP, or OSHA as suspected human carcinogen.
Mutagenicity: No data indicating mutagenic effects.
Other Effects: Prolonged exposure could affect central nervous system due to solvent. Chronic effects not well established.
Routes of Exposure: Inhalation, skin, eyes, ingestion.
Aquatic Toxicity: Toxic to aquatic life with long-lasting effects. Diluent increases persistence in environment.
Persistence and Degradability: Decomposition driven by sunlight, oxygen, microbial activity. Hydrocarbon diluent may persist.
Bioaccumulative Potential: Insoluble in water, risk of accumulation in aquatic organisms.
Mobility in Soil: Tends to remain in upper soil layers, low leaching potential due to insolubility.
Other Adverse Effects: Avoid uncontrolled environmental release which harms aquatic life.
Waste Handling: Treat as hazardous waste. Transport to licensed waste facility with chemical incineration capabilities.
Container Disposal: Triple rinse and puncture empty container; send to permitted recycler or hazardous waste facility.
Local Legislation: Observe all national and local environmental and safety requirements.
Precautions: Do not flush to drains, sewers, or water bodies.
UN Number: UN 3105
Proper Shipping Name: Organic Peroxide Type B, Liquid (contains Tert-Butyl Peroxy-2-Ethylhexanoate, stabilized, mixture, not more than 32%)
Hazard Class: 5.2 (Organic peroxide)
Packing Group: II
Labeling: Flame over circle, proper precaution pictograms
Marine Pollutant: Yes (danger to aquatic environment)
Special Transport Precautions: Keep away from sources of ignition and direct sunlight in transit. Do not stack containers to prevent friction or impact risk.
Transport Documentation: Requires emergency response guide and notification of authorities during accidents or leaks.
Regulations: IMDG, IATA, ADR applicable for international transport.
Workplace Safety: Subject to OSHA Process Safety Management, EPA Risk Management, and local chemical control laws in many countries.
Environmental Regulation: Listed substance under EU REACH, US TSCA; hazardous to environment categories apply.
Label Requirements: GHS classification, handling, hazard pictograms, supplier contact information on shipping and storage labels.
Occupational Health: Training in peroxide handling, spill, and fire emergency procedures strongly advised.
Community Right-to-Know: Requires disclosure to local environmental agencies in case of storage above threshold limits.
Other Regulation: DOT, IMDG, and air transport safety rules strictly enforced for shipment.
