© 2026 Sinochem Nanjing Corporation,
All Right Reserved
Name: Bis(Tert-Butylperoxy)Phthalate in paste form, capped at 52% active ingredient.
Type: Organic peroxide compound, used for polymer initiators and curing agents in plastics and rubbers.
Appearance: Paste, with a faint ester-like odor, viscous texture, and creamy to pale yellow color depending on storage conditions.
Industry Use: Designed for chemical manufacturing environments, especially in curing applications where temperature control gets tricky.
Exposure Risks: Regular handling by trained workers, commonly in batch production roles or maintenance support.
Classification: Considered a hazardous material under GHS standards for organic peroxides.
Major Hazards: Exposure can trigger skin and eye irritation, respiratory tract discomfort, potentially severe allergic skin responses, and, at elevated levels, chemical burns.
Fire and Explosion Risk: Heat or physical shock can set off decomposition, with risk of explosive release.
Sensitization: Extended skin contact might leave some workers with chronic dermatitis or respiratory issues.
Chronic Effects: Long-term exposure, without solid PPE and ventilation, brings cumulative toxic risk—especially for the liver and kidneys according to some animal studies.
Active Chemical: Bis(Tert-Butylperoxy)Phthalate, making up to 52% of total weight.
Additives: Mixture usually includes stabilizers to prevent runaway reactions and thickeners or carriers like mineral oils or inert pastes.
Impurities: Trace peroxides or stabilizer breakdown products, which may increase sensitivity to light or heat.
Ingredient Blend: The product’s reactivity hinges on the purity and ratio of the ingredients, so batch variability stands out as a workplace concern.
Eye Contact: Immediate flushing with flowing water, holding eyelids apart, can help limit damage.
Skin Exposure: Drenching affected zones with soapy water—don’t delay glove removal—often curbs further penetration.
Inhalation: Fresh air, sitting upright, and removing from exposure area support rapid recovery; cough or throat irritation calls for a medical evaluation.
Ingestion: Swallowing isn’t common but urges quick rinsing and immediate medical attention—don’t induce vomiting.
Follow-Up: Persistent irritation, visual disturbances, or symptoms like wheezing should always prompt emergency assessment.
Extinguishing Media: Dry chemical powder and CO₂ knock down flames best since water can scatter paste, risking spread of burning material.
Precautions: Ordinary firefighting gear won’t cut it; full chemical suits and positive-pressure breathing masks provide a real line of defense.
Combustion Products: Fumes from breakdown include carbon monoxide, carbon dioxide, tert-butanol, and phthalic anhydride, all potentially toxic.
Special Advice: Tackling fires quickly matters because, left unchecked, thermal decomposition builds pressure fast and can rupture stored containers.
Personal Protection: Standard spill response involves donning gloves, splash goggles, and, in confined spaces, using a respirator.
Containment: Non-sparking tools work best for scooping up the paste and placing it in sealed drums for a safe hold.
Clean-Up: Avoid wetting agents that react with peroxides; inert absorbents such as vermiculite or sand keep things under control.
Ventilation: Running exhaust fans or opening doors cuts down airborne vapors, slashing inhalation risk.
Disposal: Store all contaminated tools and cleanup media in secure, clearly marked hazardous waste containers to prevent accidental reactions down the line.
Handling Practices: Pour and transfer the paste only with non-sparking, corrosion-resistant equipment. Never mix remnants from old containers with new stock.
Environmental Control: Avoid direct sunlight, heat sources, and keep storage areas cool—thermal stability drops quickly above 30°C.
Segregation: Never store organic peroxides with acids, bases, reducing agents, or anything combustible.
Labeling: Every drum and batch should display hazard labels and expiry dates clearly—workers need to see what they’re up against at a glance.
Training: Regular safety briefings make the difference, with drills to handle splashes, accidental mixing, and containment.
PPE: Chemical-resistant gloves, eye protection, splash aprons, and sometimes full body suits form the basic lineup for direct handling.
Ventilation: Fixed fume hoods and local exhaust systems cut vapor concentrations to a minimum.
Monitoring: Spot checks for peroxy residue in workspaces and regular air sampling reduce risk for chronic exposure.
Work Practice: No food, drink, or smoking anywhere near handling areas; handwashing facilities get constant use.
Medical Surveillance: Routine health screenings look for subtle signs of overexposure, particularly skin or respiratory changes.
Physical State: Dense, pasty mass; doesn’t flow easily at room temperature.
Odor: Mild, ester-like smell.
Color: Ranges from white to pale yellow, depending on age and storage.
Solubility: Insoluble in water; soluble in some organic solvents like acetone or toluene.
Decomposition Temperature: Begins to break down at temperatures above 50°C with self-accelerating decomposition starting not much higher.
Vapor Pressure: Low under normal conditions, but vapor generation shoots up if kept warm.
Chemical Stability: Stable under controlled, cool, and dry storage but prone to rapid breakdown above prescribed temperatures.
Incompatibility: Reacts dangerously with acids, bases, reducing metals, or strong oxidizers. Spilled material left near sunlight, friction, or contaminated tools has led to storage room fires.
Decomposition Products: Carbon oxides, alcohols, phthalic acids. Fume exposure has caused headaches or nausea among staff not using proper masks.
Polymerization: Violent, non-controlled polymerization risks rise sharply if the paste is heated, pressurized, or combined with incompatible chemicals.
Acute Toxicity: Short-term exposure reports focus on skin, eye, and nasal irritation with moderate redness and itching. Swallowing the paste causes abdominal pain, burning sensations, and—on rare occasions—more severe symptoms.
Chronic Exposure: Repeat contact without gloves often brings eczema, with studies in test animals pointing to potential effects on the liver over prolonged periods.
Respiratory Effects: Workers in poorly ventilated spaces occasionally complain of coughing, throat discomfort, or mild chest tightness on busy mixing days.
Allergic Reactions: Sensitized individuals can develop itches or rashes after even small touches, underlining the need for rapid PPE changes after spills.
Aquatic Impact: Runoff or improper spillage rocks aquatic organisms, harming reproduction cycles and causing rapid oxygen demand in tanks or rivers, leading to fish die-offs.
Breakdown in Environment: Doesn’t persist long in open air due to photochemical reactivity, but sticky paste can cling to soil and plant roots, slowing natural breakdown.
Bioaccumulation: Evidence suggests low tendency to build up in food chains, yet environmental releases threaten local water and soil quality.
Wildlife Response: Past ordinance has flagged accidents with dead insects and reduced plant health in factory-adjacent wetlands.
Waste Management: Leftover paste and contaminated disposables qualify as hazardous waste and deserve treatment in specially licensed incinerators or chemical treatment plants.
Containers: Empty drums retain dangerous residues—triple rinsing and proper drum crushing prevent risks.
Spill Waste: Double-bagging and segregating all cleanup substances safeguards disposal crews from accidental ignition.
Local Laws: Disposal should follow regional and national hazardous waste codes, with documentation provided for all outgoing shipments.
UN Classification: Organic peroxide, typically falling under UN 3106 or similar codes for regulated transport.
Packaging: Only specially certified, vented packages limit internal pressure build-up—no shortcuts using standard drums or bins.
Labelling: Highlighted hazard diamonds and clear warnings support safe handling during transit.
Emergency Response: Hauling companies follow defined protocols for spills or heat exposure, keeping routes away from busy public spaces where possible.
Workplace Limits: Occupational health authorities set strict thresholds for daily and weekly exposure, often referencing OSHA and equivalent standards abroad.
Labeling Standards: GHS mandates clear, prominent risk statements and pictograms. EU and US practice share most hazard codes and classification rules.
Permit Requirements: Workers need documented training and periodic recertification to legally work with the paste.
Environmental Reporting: Spills over certain volumes must be reported to regional safety agencies, with follow-up monitoring and waste management inspections built in.
