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Product Name: Tert-Butyl Peroxypivalate Diluted Solution
Chemical Family: Organic peroxide, Dialkyl peroxide mixture
Manufacturer: Supplier and emergency contact information as per product packaging
CAS Number: 927-07-1 (active ingredient: Tert-Butyl Peroxypivalate); Diluent unspecified, commonly a phthalate or mineral oil blend
Product Use: Polymerization initiator, industrial chemical processing
Synonyms: Tert-Butyl peroxypivalate, Peroxide TBPP
UN Number: 3107
Recommended Restrictions: For industrial use only, keep away from food and feed materials, for use only by trained personnel
Signal Word: Danger
Hazard Category: Organic Peroxide Type C, Flammable Liquid, Acute Toxicity (oral, dermal, inhalation), Eye Irritant, Skin Sensitizer
GHS Label Elements: Flame over circle, exclamation mark, skull and crossbones
Hazard Statements: Highly reactive, may explode if heated, self-accelerating decomposition, causes severe skin burns and eye damage, toxic if inhaled or swallowed, may cause allergic skin reactions, highly flammable liquid and vapor
Precautionary Statements: Wear protective gloves and eye/face protection, wash hands thoroughly after handling, keep container tightly closed, store in a well-ventilated place away from direct sunlight, keep away from heat/sparks/open flames/hot surfaces, do not eat drink or smoke when using this product, avoid breathing vapor
Chemical Name: Tert-Butyl Peroxypivalate
Concentration: 67% to 77% (w/w)
Diluent Type A: ≥ 23%, commonly phthalate or mineral oil, non-reactive carrier
Other Ingredients: Stabilizers and impurities below regulatory thresholds
CAS Number (active): 927-07-1
CAS Number (diluent): Typically proprietary, available on request
Impurities: None with significant classification impact according to current knowledge
Inhalation: Remove person to fresh air, keep at rest, seek medical attention if symptoms persist, administer artificial respiration if indicated, do not leave unattended
Skin Contact: Remove contaminated clothing, thoroughly wash skin with soap and water, rinse for at least 15 minutes, seek medical attention if irritation develops
Eye Contact: Immediately flush eyes with plenty of water for at least 15 minutes, lift eyelids occasionally, remove contact lenses if present and easy to do, get medical attention
Ingestion: Rinse mouth, do not induce vomiting, never give anything by mouth to an unconscious person, seek immediate medical advice
Most Important Symptoms: Respiratory distress, irritation of mucous membranes, skin blisters or burns, nausea, loss of consciousness in severe cases
Note for Healthcare Providers: Support respiratory and cardiovascular functions, monitor for chemical pneumonia or pulmonary edema in cases of significant inhalation exposure
Suitable Extinguishing Media: Water spray (fog), foam, dry chemical, carbon dioxide; do not use direct water jets as liquid may float and spread fire
Specific Hazards: Substance decomposes on heating generating copious volumes of gas, risk of explosion, toxic fumes including carbon monoxide and organic vapors
Protective Equipment: Full protective suits, self-contained breathing apparatus (SCBA), chemical resistance gear
Specific Firefighting Procedures: Evacuate area, cool containers with flooding quantities of water from uphill/ upwind position, do not approach if containers are exposed to flames
Hazardous Combustion Products: Carbon monoxide, carbon dioxide, unidentified organic compounds
Special Notes: Release of vapors and heat can cause container rupture or explosion, initiate emergency protocols if fire involves large product quantities
Personal Precautions: Evacuate non-essential personnel, isolate release area, ventilate affected space, keep unprotected persons away, avoid inhalation of vapors, wear full chemical protective gear including respirator suitable for organic vapors
Environmental Precautions: Prevent substance from entering drains, surface water, and soil, contain spillage with appropriate diking material such as sand or earth
Methods for Cleanup: Absorb with inert materials (vermiculite, dry earth), transfer to labeled waste containers for disposal, keep waste cool and wet until disposal
Reference to Other Sections: Disposal considerations, personal protection and handling instructions
Decontamination Advice: Wash affected surfaces thoroughly with diluted sodium bisulfite solution to reduce peroxide residues, ventilate area after cleanup, handle contaminated absorbents as hazardous waste
Precautions for Safe Handling: Handle only with thoroughly clean, dry equipment, use spark-proof tools and explosion-proof electrical equipment, avoid friction, impact, and shock, ground all equipment and containers
Safe Storage Conditions: Store in tightly closed original containers, in a cool, dry, well-ventilated area away from sources of ignition, incompatible chemicals, oxidizable materials, and sunlight; storage temperature below 25°C (77°F) is strongly recommended
Incompatible Materials: Acids, bases, strong reducing agents, metals, combustibles, organic solvents
Other Handling Advice: Keep away from smoking and open flames, do not return unused material to storage, use only outdoors or in a well-ventilated area
Occupational Exposure Limits: No official TLV set for Tert-Butyl Peroxypivalate; limit vapor exposure to the lowest achievable level
Engineering Controls: Explosion-proof local exhaust ventilation, closed process systems, continuous atmospheric monitoring for vapor buildup
Personal Protection: Nitrile or butyl rubber gloves, chemical splash goggles or face shields, flame-resistant lab coat or coveralls, chemical-resistant shoes, suitable respirator (organic vapor cartridge or supplied air, depending on risk assessment)
Workplace Hygiene: Wash hands and exposed skin thoroughly after handling, separate storage for eating, drinking and smoking facilities, immediate removal of contaminated clothing, maintain eye wash and safety shower near work area
Physical State: Transparent or slightly turbid colorless to pale yellow liquid
Odor: Mild, pungent, ester-like
Boiling Point: Decomposes before boiling
Melting/Freezing Point: -10°C to -20°C (approximate)
Flash Point: 18°C to 23°C (closed cup, varies based on dilution)
Vapor Pressure: Not measurable due to decomposition, but low at room temperature
Explosive Properties: High, especially if heated or impacted above 25°C
Vapor Density: Heavier than air
Solubility in Water: Poor, partially miscible with organic solvents
Decomposition Temperature: Begins around 50°C, violent decomposition possible above 60°C
Specific Gravity: 0.97–0.99 g/cm³ at 20°C
Viscosity: Low to moderate, similar to light oils
Chemical Stability: Unstable at temperatures above 25°C, risk of spontaneous decomposition with evolution of heat and gas
Reaction Risks: May detonate under shock, impact, friction, or heat; dangerous with incompatible materials such as strong reducing or oxidizing agents, amines and acids
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, volatile organic compounds
Polymerization Risk: Not expected, though violent runaway reactions possible with certain contaminants
Stabilization: May contain stabilizers to prevent premature decomposition but requires proper temperature control at all times
Advice for Safe Handling: Do not reuse containers, always ground equipment and containers, store away from all ignition sources
Acute Toxicity: Oral LD50 (rat): 500-750 mg/kg; skin exposure causes severe irritation and chemical burns, primary eye irritant
Routes of Exposure: Inhalation, ingestion, skin and eye contact
Symptoms of Exposure: Respiratory distress, headache, dizziness, nausea, vomiting, skin erythema, blistering, eye pain and burns
Skin Sensitization: Sensitization reported with repeated or prolonged skin contact
Chronic Toxicity: Prolonged exposure may result in damage to mucous membranes, skin, and respiratory tract
Carcinogenicity / Mutagenicity: Not classified as carcinogen or mutagen under current EU and US guidelines, though long-term effects are still under review
Other Information: No reproductive or developmental toxicity evidence found at tested doses
Ecotoxicity: Harmful to aquatic life, data indicate short-term LC50 for fish <1 mg/L, potential for bioaccumulation considered low
Mobility: Substance floats on water, volatility may cause atmospheric release in event of spill
Persistence and Degradability: Decomposes in environment to carbon dioxide and organic acids, not considered persistent
Bioaccumulation Potential: Low, due to high reactivity and instability in natural waters
Other Environmental Hazards: May damage aquatic environments through oxygen depletion following rapid breakdown and release of gases
Waste Treatment Methods: Incinerate under controlled conditions in a licensed facility equipped to handle organic peroxides, do not dump into sewers or waterways, consult local and national regulations
Container Disposal: Triple rinse empty containers with compatible solvent, puncture before recycling or disposal, manage all residues as hazardous waste
Special Precautions: Never dispose of with general refuse due to risk of delayed ignition or decomposition
Disposal Code: Consult regulatory authorities for appropriate waste code and restrictions
UN Number: 3107
Proper Shipping Name: Organic Peroxide Type C, Liquid (Tert-Butyl Peroxypivalate, mixture)
Hazard Class: 5.2 (Organic peroxides)
Packing Group: II, as per transport requirements
Labels: Organic Peroxide, Flammable Liquid (subsidiary hazard)
Transport Precautions: Keep container upright, avoid jolting and vibration, use dedicated carriers trained for hazardous material transport
Environmental Hazards: See ecological information; may require marine pollutant label for bulk quantities
Inventory Listings: Listed in the TSCA inventory (US), EINECS (EU), and comparable Asian and South American chemical inventories
EU Classification: C (Corrosive), E (Explosive), F (Highly Flammable), N (Dangerous to the Environment); subject to REACH registration
US Regulations: Covered under OSHA Process Safety Management, SARA Title III, Section 313 (due to reactivity and flammability)
WHMIS (Canada): Class B (Flammable/Combustible Material), Class F (Dangerously Reactive Material)
Other Regulations: Subject to strict national and international transportation, environmental and workplace safety controls, product safety and environmental statements required for professional users
