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Product Name: Mixture of Tert-Butyl Peroxy-2-Ethylhexanoate and 2,2-Di-(Tert-Butylperoxy)Butane
Recommended Uses: Polymerization initiator, cross-linking agent for plastics and rubbers
Supplier: Chemical manufacturing facility certified for hazardous materials
Contact Information: Emergency response available 24/7 through supplier's hotline listed on original product documentation
Product Code: Tert-Butyl Mix TBPEH/DTBPB
CAS Numbers: Tert-Butyl Peroxy-2-Ethylhexanoate: 3006-82-4, 2,2-Di-(Tert-Butylperoxy)Butane: 2167-23-9
Classification: Organic peroxide, type C; skin irritant; eye irritant; possible respiratory irritant
Signal Word: Danger
Hazard Symbols: Flame over circle, exclamation mark
Hazard Statements: Causes serious eye irritation; causes skin irritation; may cause or intensify fire; oxidizer
Precautionary Statements: Avoid breathing vapors; wash exposed skin thoroughly after handling; keep away from heat, sparks, and open flame; wear chemical-resistant gloves, protective eye equipment, and respiratory protection if required
Tert-Butyl Peroxy-2-Ethylhexanoate: Content up to 31% by weight; CAS No. 3006-82-4; EC No. 221-110-7
2,2-Di-(Tert-Butylperoxy)Butane: Content up to 36% by weight; CAS No. 2167-23-9; EC No. 218-508-0
Type B Diluent: Content at least 33% by weight; helps reduce the risk of rapid exothermic decomposition and controls volatility; contains proprietary solvent base classified as a hydrocarbon blend, specifics provided by supplier on request
Eye Contact: Rinse cautiously with water for several minutes; remove contact lenses if present and easy to do; continue rinsing for at least 15 minutes; seek medical attention, especially if irritation or pain persists
Skin Contact: Wash with plenty of clean water; remove contaminated clothing; if skin irritation occurs, seek prompt medical advice
Inhalation: Administer fresh air; move affected person to a well-ventilated area; if symptoms such as shortness of breath, coughing, or dizziness persist, consult medical services
Ingestion: Rinse mouth with water; do not induce vomiting; contact poison control or medical provider immediately for guidance
Suitable Extinguishing Media: Dry chemical powder, foam, or CO2 extinguishers; avoid direct water streams
Specific Hazards: Thermal decomposition yields toxic fumes such as carbon monoxide, carbon dioxide, and irritating vapors; runaway polymerization possible under fire conditions
Protective Equipment for Firefighters: Full protective gear, including self-contained breathing apparatus and heat-reflective clothing; maintain a safe distance from storage areas exposed to fire
Special Procedures: Cool exposed containers with water spray to prevent pressure build-up and rupture; prevent runoff from contamination of water bodies or drains
Personal Precautions: Restrict area access; wear protective gloves, goggles, and anti-static clothing; ensure proper ventilation to avoid inhalation risks
Environmental Precautions: Prevent entry into soil, surface water, or drains by using absorbent barriers and secondary containment
Methods for Cleaning Up: Use inert absorbents such as vermiculite or sand, scoop into secure compatible containers; avoid generation of dust or vapor during cleanup; handle waste as hazardous according to disposal regulations
Handling: Keep away from sources of heat, sparks, open flames, and strong oxidizers; ground containers during transfer; operate with explosion-proof equipment; avoid physical shocks and use tools or utensils that do not create friction or sparks
Storage: Store in a tightly closed, original container at temperatures below 30°C in a cool, dry, well-ventilated area equipped with temperature monitoring and spill control; avoid sunlight and incompatible substances such as strong acids, alkalis, and reducing agents; maintain strict inventory rotation with clear labeling; segregate from combustible materials and foodstuffs
Engineering Controls: Local exhaust ventilation, chemical fume hoods, explosion-proof electrical fixtures in storage and handling areas
Personal Protection: Nitrile or neoprene gloves, splash-proof safety goggles or face shields, chemical-resistant suits, and respiratory protection such as NIOSH-approved organic vapor cartridges for large-scale handling or accidental exposures
Occupational Exposure Limits: No established OSHA or ACGIH limits for either peroxide; suppliers may recommend internal exposure thresholds; monitor workplace air for volatile organic concentrations and provide regular training for workers on safe handling practices
Appearance: Clear to pale yellowish liquid with faint aromatic odor
Odor: Slightly sweet, hydrocarbon-like
Melting Point/Range: Below 0°C
Boiling Point/Range: Ranges from 80°C to 150°C depending on composition
Flash Point: Between 60°C and 80°C, determined by lowest component
Auto-Ignition Temperature: Above 170°C
Vapor Pressure: Moderate at ambient temperature
Solubility in Water: Insoluble; soluble in organic solvents such as hydrocarbons and ethers
Density: Around 0.95–1.02 g/cm³
Viscosity: Varies with temperature but typically fluid at room temperature
Stability During Storage: Stable under recommended storage conditions, but may generate gas and heat beyond safe temperature thresholds
Chemical Stability: Stable under proper storage; susceptible to rapid and uncontrolled decomposition if heated, contaminated, or exposed to strong acids, bases, or reducing agents
Possibility of Hazardous Reactions: Violent decomposition and pressure buildup from heating, mechanical shock, or contamination
Incompatible Materials: Strong acids, alkalis, heavy metals, reducing agents, and combustible substances
Hazardous Decomposition Products: Generates toxic gases, including carbon monoxide, carbon dioxide, and volatile organic compounds during decomposition or in fire
Conditions to Avoid: Temperatures above recommended limits, sunlight, contact with incompatible substances, and sources of ignition
Acute Toxicity: Skin and eye irritant; may cause mild respiratory irritation; swallowing or inhalation can produce gastrointestinal discomfort, dizziness, or headaches
Chronic Exposure: Repeated contact promotes dermatitis, skin sensitization, and persistent respiratory complaints in sensitive individuals
Carcinogenicity: No classification according to IARC, NTP, or OSHA
Other Effects: Sensitizing properties possible with repeated exposure; no clear evidence for developmental toxicity; limited data on reproductive impacts
Medical Observation: Direct contact with eyes or skin should prompt observation for delayed reactions such as redness, burning, or blisters; sensitized persons may show increasing symptoms over time
Aquatic Toxicity: Harmful to aquatic organisms; can cause long-term adverse effects in aquatic environments
Persistence and Degradability: Organic peroxides tend to decompose naturally, but products from breakdown may retain toxicity
Bioaccumulation Potential: Low to moderate, based on physical properties and environmental fate
Mobility in Soil: Low solubility in water restricts widespread movement, but spillage can result in localized contamination
Other Environmental Effects: Release to waterways or soil threatens ecosystem stability; responsible users must implement spill control and recovery solutions to reduce footprint
Waste Disposal: Dispose of through licensed hazardous waste contractors; incinerate under controlled conditions with destruction of by-products; containers require thorough triple rinsing before recycling or disposal
Handling of Empty Containers: Do not reuse for non-hazardous materials; treat as hazardous even after emptying since residue threatens health and environment; lock away from unauthorized access until proper disposal
Local Regulations: Follow regional and national hazardous waste handling rules; document all disposals and maintain records for audits
UN Number: 3105 (Organic Peroxide Type C, liquid)
Proper Shipping Name: Organic Peroxide Type C, Liquid
Transport Hazard Class: 5.2 (organic peroxides)
Packing Group: II (medium hazard level)
Labels Required: Red-and-yellow organic peroxide hazard label
Environmental Hazards: Marked as a marine pollutant if transported by sea
Special Transport Requirements: Temperature-controlled shipping advised; trained handlers must manage transit; avoid stacking with incompatible cargos like combustibles or oxidizers
Additional Information: Notify receiving facilities in advance since emergency measures may be needed in case of delays or accidents
TSCA Status: Components listed on the US Toxic Substances Control Act inventory
SARA/OSHA: Subject to SARA 302 and SARA 313 reporting as hazardous chemical; listed under OSHA hazardous substances
EU Regulations: Covered by REACH as dangerous preparations; labeled under CLP Regulation with appropriate warning symbols and safety phrases
Other National Standards: Subject to Canadian WHMIS, Australian ADG Code, Japanese ISHL, and China’s GB hazardous chemical list
Workplace Labeling: Maintain updated safety signs and emergency contact numbers in all storage and handling areas; display physical and health hazard icons clearly for all workers
Community-Right-To-Know: Notify local governments of storage and usage volumes; ensure emergency services possess updated guidance on response to fires, spills, and exposures
