© 2026 Sinochem Nanjing Corporation,
All Right Reserved
Product Name: Tert-Butyl Peroxypivalate Stable Dispersion
Chemical Formula: C9H18O4
Synonyms: Peroxypivalic acid tert-butyl ester, TBPP
Use: Polymerization initiator, industrial intermediate
Supplier Identification: Manufacturer name, contact address, emergency telephone number
Recommended Use Restrictions: Industrial use only, not for food, drug, cosmetic, or household use
Classification: Organic peroxide, Eye irritation, Skin irritation
Label Elements: Signal word: Danger, Hazard pictograms: flame, exclamation mark
Hazard Statements: Heating may cause a fire or explosion, Causes skin and eye irritation, Harmful if inhaled
Precautionary Statements: Keep away from heat, sparks, open flames, Avoid breathing mist, Wear protective gloves, eye protection, Wash thoroughly after handling, In case of fire: evacuate area
Physical Hazards: May decompose explosively under confinement, Sensitive to shock, friction, and heat
Environmental Hazards: Harmful to aquatic life, Avoid release to environment
Other Hazards: May cause respiratory irritation, Can aggravate pre-existing lung or skin conditions
Chemical Name: Tert-Butyl Peroxypivalate
Concentration Range: ≤52% in aqueous dispersion
CAS Number: 614-45-9
Other Components: Water (balance), Stabilizers (non-reactive surfactants)
Impurities: Contains no substances with occupational exposure limit values
Inhalation: Remove to fresh air, provide oxygen if breathing difficult, seek medical attention if symptoms persist
Skin Contact: Remove contaminated clothing, wash skin with soap and plenty of water for at least 15 minutes, obtain medical advice for persistent irritation
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses, continue rinsing, get medical help immediately
Ingestion: Rinse mouth, do not induce vomiting, never give anything by mouth to an unconscious person, seek medical help right away
Most Important Symptoms/Effects: Irritation, redness, burns to skin and eyes, respiratory discomfort
Suitable Extinguishing Media: Water spray, foam, dry powder, do not use carbon dioxide or dry chemical on large fires
Specific Hazards: Decomposes under heat to release flammable vapors, risk of violent rupture of containers
Protective Equipment: Self-contained breathing apparatus, full chemical protective suit
Fire Fighting Instructions: Evacuate area, cool exposed containers with water, avoid inhalation of fumes, stay upwind
Hazardous Combustion Products: Carbon monoxide, carbon dioxide, various organic fragments
Personal Precautions: Evacuate unnecessary personnel, ventilate area, use personal protective equipment
Environmental Precautions: Contain run-off, prevent entry into drains, sewers, waterways
Methods for Clean-Up: Absorb with inert non-combustible material (sand, earth), collect in appropriate containers for disposal, avoid sources of ignition, clean residue with plenty of water
Decontamination: Wash area thoroughly after pick-up, properly dispose of used cleaning materials
Precautions for Safe Handling: Use only in well-ventilated areas, avoid contact with eyes, skin, clothes, keep away from heat and open flames, ground and bond containers during transfer
Incompatible Materials: Acids, bases, heavy metals, reducing agents, strong oxidizers, combustible materials
Storage Conditions: Store in tightly closed original container in cool (below 25°C), dry place, segregate from food and incompatible materials, store away from sunlight and ignition sources
Technical Measures: Provide spill containment in storage area, use explosion-proof electrical equipment, post warning signs
Exposure Limits: No established national occupational exposure limits
Engineering Controls: Use fume hoods or local exhaust ventilation, eyewash and safety shower required
Personal Protection: Chemical-resistant gloves (nitrile or neoprene), flame-retardant clothing, safety goggles, face shield, respiratory protection for mist or insufficient ventilation (organic vapor cartridge mask), do not eat or drink while working with product
Hygiene Measures: Wash hands and face after handling, launder contaminated clothing before reuse
Appearance: Milky white to pale yellow liquid
Odor: Faint, characteristic peroxide odor
pH: Approximately 3.5 – 5.5
Melting Point/Range: Below 0°C
Boiling Point/Range: Decomposes before boiling
Flash Point: Not applicable for aqueous dispersion, but concentrate is below 23°C
Vapor Pressure: Not available
Solubility in Water: Miscible as dispersion
Density: Around 1.00 g/cm³
Partition Coefficient (log Pow): Data not available
Decomposition Temperature: Approximately 60°C
Viscosity: Not available
Explosive Properties: Sensitivity to heat, friction, and shock
Chemical Stability: Stable within recommended storage conditions, unstable above 25°C
Possibility of Hazardous Reactions: Rapid decomposition may occur on heating or on contact with incompatible materials, risk of explosion under confinement
Incompatible Materials: Metal salts, acids, alkalis, reducing agents, combustible substances
Decomposition Products: Carbon monoxide, carbon dioxide, tert-butanol, acids, other organic vapors
Conditions to Avoid: Heat, sunlight, impact, friction, contamination
Acute Toxicity: Oral LD50 (rat) > 300 mg/kg (concentrate), inhalation and dermal routes data limited
Skin Corrosion/Irritation: Causes irritation, possible burns with prolonged contact
Serious Eye Damage/Irritation: High risk of irritation and damage
Respiratory Sensitization: May irritate airways, chronic exposure increases risk
Carcinogenicity: No data on human or animal carcinogenic potential
Mutagenicity: Not classified as mutagenic by available studies
Reproductive Toxicity: Animal studies insufficient
Repeat Dose Toxicity: Possible effects on liver and kidneys at high doses in animal studies
Other Health Effects: Dizziness, headache, nausea from inhaling vapors, possible allergic skin reactions
Ecotoxicity: Harmful to aquatic organisms, potential to cause long-term adverse effects in aquatic environment
Persistence and Degradability: Organic peroxide component slowly hydrolyzes in water, not readily biodegradable
Bioaccumulation Potential: Low likelihood of bioaccumulation due to rapid decomposition
Mobility in Soil: Mobile in water, possible ground and surface water contaminant
Other Adverse Effects: Avoid release into waterways, toxic breakdown products may persist
Waste Treatment Methods: Consult with hazardous waste disposal experts, use approved incineration facility
Contaminated Packaging: Rinse containers well, destroy by incineration or high-temperature combustion
Disposal Regulations: Dispose under local, regional, national, or international regulations for organic peroxides
Precautions for Disposal: Never dump into drains, soils, or uncontrolled environments, avoid accumulation with incompatible wastes
UN Number: 3107
Proper Shipping Name: Organic peroxide type E, liquid (Tert-Butyl Peroxypivalate, ≤52%, dispersion in water)
Transport Hazard Class: 5.2 (Organic Peroxide)
Packing Group: II (medium danger)
Labels: Flame symbol, 5.2 hazard
Special Precautions: Keep containers upright and secured, segregate from food, strong acids and bases
IMDG Code: Controls marine transport; dot points for stowage and handling; not to be transported in bulk
Air Transport (IATA): Registered as hazardous material; check airline restrictions before shipping
OSHA Regulations: Covered under U.S. OSHA Hazard Communication Standard
EPA Regulations: Listed in Toxic Substances Control Act (TSCA); specific requirements for reporting and management
EU Regulations: Classified under CLP and REACH, safety data sheet requirements under Annex II
Other Regional Requirements: Subject to national chemical registries in major markets, tracking and reporting required for hazardous chemicals
Workplace Controls: Health and safety workplace monitoring required in use and storage
Labeling Rules: Product requires standard hazard communication and pictograms under GHS
