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Chemical Name: Tetramethyl Tert-Butyl 1,1,3,3-Peroxypivalate
Common Synonyms: TM-TBPP
Concentration: Up to 77% active ingredient in solution, with at least 23% diluent (Type A)
Physical State: Typically supplied as a clear, colorless to pale yellow liquid blend
Odor: Characteristic, faint chemical aroma
Major Use: Radical initiator in chemical synthesis, especially for polymer manufacturing
Hazard Classes: Organic peroxide, oxidizer, flammable liquid
Health Hazards: Causes skin irritation, serious eye damage, may trigger respiratory irritation
Environmental Risk: Toxic to aquatic environments, persistent in soil and water
Key Precautions: Avoid heat, sparks, and open flame. Store out of sunlight. Prevent release into drains
Main Component: Tetramethyl Tert-Butyl 1,1,3,3-Peroxypivalate, organic peroxide (content ≤ 77%)
Diluent: Type A diluent (hydrocarbon solvent content ≥ 23%)
Notable Impurities: Trace aldehydes, ketones, other peroxides from manufacturing process
Inhalation: Move person to fresh air immediately. Seek medical attention for continued symptoms—headache, dizziness, or breathing problems deserve urgent response.
Skin Contact: Remove contaminated clothing. Wash skin thoroughly with soap and water. Watch for blistering or redness.
Eye Contact: Rinse eyes continuously with water for at least 15 minutes. Keep eyelids open and seek medical care right after.
Ingestion: Do not induce vomiting; give a large glass of water if the person is conscious. Go straight to emergency care.
Extinguishing Methods: Water spray for largest fires, dry chemical or CO2 for smaller spills–never use dry combustibles to cover spills.
Special Hazards: Burns rapidly, can decompose explosively at high temperatures with toxic vapors released.
Protective Gear: Full fire suit, self-contained breathing apparatus, keep upwind.
Containment Advice: Cool containers exposed to fire with abundant water. Remove materials that may catch fire easily from the area.
Personal Precautions: Evacuate area, ventilate if safe, and wear protective gloves, goggles, and a mask.
Environmental Response: Prevent runoff into drains, storm water, or rivers. Use earth or inert materials to absorb spilled liquid.
Clean-up: Collect with non-combustible tools into plastic containers. Do not return spilled chemical to original containers.
Safe Handling: Work only in well-ventilated areas, avoid friction or build-up of static. Always keep away from sources of ignition.
Storage: Store in tightly closed containers, away from direct sunlight and heat sources. Recommended temperature is below 30°C. Separate from acids, reducing agents, and combustible materials.
Container Advice: Use containers made from compatible materials like HDPE or stainless steel.
Ventilation: Use local exhaust or general room ventilation to keep vapor concentrations low.
Personal Equipment: Splash-proof goggles, chemical-resistant gloves, flame-retardant overalls, closed footwear.
Respiratory Protection: Respirators required if concentration exceeds safety limits or ventilation is poor.
Exposure Limits: Regulatory thresholds differ by country. Values often align with general organic peroxide and hydrocarbon solvent standards.
Appearance: Transparent to yellowish, oily liquid
Boiling Point: Not defined due to decomposition
Decomposition Temperature: Decomposes dangerously above 80°C
Specific Gravity: Ranges around 0.96-0.99
Vapor Pressure: Low at room temperature
Solubility: Low in water, good in hydrocarbons
Flash Point: Below 23°C — highly flammable
Reactivity: Sensitive to shock, heat, and friction
Stability: Stable under recommended conditions, rapidly decomposes if exposed to higher temperatures or contamination
Incompatibles: Avoid acids, bases, reducing agents, copper, and iron
Hazardous Byproducts: Methyl tert-butyl ether, carbon monoxide, carbon dioxide, hydrocarbons from breakdown
Acute Toxicity: Vapors and liquid irritate eyes, nose, and skin. Inhalation may bring headaches, vertigo, nausea.
Chronic Exposure: Persistent skin contact could cause dermatitis or allergic reactions in sensitive people.
Carcinogenicity: Not generally recognized as a human carcinogen by major agencies, but chronic solvent exposure raises risks for some organ systems
Aquatic Toxicity: Toxic to freshwater and marine life. Even small spills damage local habitats.
Persistence: Decomposition produces stable organic compounds that linger in soil and water.
Bioaccumulation: Limited evidence, but breakdown products may build up in local food web.
Waste Disposal: Dispose only by high-temperature incineration at licensed facilities. Never dump into sewers, drains, or public landfills.
Container Disposal: Empty drums still contain residue—triple rinse and puncture before recycling or disposal.
Regulatory Shipping Name: Organic Peroxide Type C, Liquid
Packing Group: II (medium danger), UN number depends on exact formulation
Transport Hazards: Requires temperature control, secondary containment, and emergency response plans. Transport with compatible goods only.
Classification: Covered by chemical safety regulations for organic peroxides and flammable liquids in most countries.
Workplace Requirements: Safety signage, employee training, access to eye wash and shower stations.
Environmental Laws: Subject to reporting under major environmental protection statutes related to spill or release.
