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Tert-Amyl Peroxybenzoate: A Closer Look at a Crucial Organic Peroxide

Historical Context and Development

Looking back at the history of organic peroxides, Tert-Amyl Peroxybenzoate found its footing as chemists in the twentieth century began chasing safer and more efficient routes for free-radical initiation. Traditional peroxides often brought up major handling problems and unpredictable breakdown, so the search for alternatives pushed researchers to consider molecules with greater thermal stability and more reliable decomposition profiles. This not only changed the way plastics and rubbers were produced but helped set the stage for a world that relies on polymers for packaging, automotive parts, and thousands of other everyday applications. Over the years, the drive to improve chemical processes also nudged the industry to tweak production methods, making the use of peroxybenzoates more practical for large-scale manufacturing. Grasping this legacy, anyone working with polymerization today owes a nod to the persistent trial and error of past chemists, sharing in that common struggle to balance utility and safety.

Product Overview: Its Role and Relevance

Tert-Amyl Peroxybenzoate, with the formula C12H16O3, ranks among those specialized organic peroxides that get the job done without bringing too many surprises. It acts as a catalyst for several free-radical polymerization reactions, especially where precise control and cleaner processing matter. It tends to show up most in plastics manufacturing, from polyethylene pipes to coatings. My first hands-on experience with this chemical came during a summer research stint in a polymer lab, where batch after batch of resin simply wouldn’t cure right without it. Colleagues working in rubber compounding or resin casting recognize its contribution to boosting throughput and keeping undesired side reactions at bay. On a personal level, seeing how a pinch of Tert-Amyl Peroxybenzoate could make the difference between an average and a high-quality polymer sticks with me even now.

Physical and Chemical Properties

A solid understanding of its properties is more than technical trivia for the folks who work around it daily. Tert-Amyl Peroxybenzoate is typically a colorless to pale yellow liquid, but don’t let the mild appearance fool you — its decomposition can release a fair bit of energy, which calls for careful handling. Physically, it brings in a boiling point high enough to stay put in most processing environments, and a decomposition temperature that lets manufacturers time their reactions with a fine touch. It doesn’t mix easily with water, so spills or accidental releases stick mostly to surfaces and equipment rather than becoming a cleanup issue in wastewater. The distinctive benzoyl smell lingers in labs — not exactly pleasant but unmistakable once encountered, and a subtle cue to double-check ventilation or personal protection.

Technical Specifications and Labeling

Precision in labeling often gets underestimated, but it carries real weight in the handling of substances as reactive as this one. Most Tert-Amyl Peroxybenzoate on the market today arrives labeled within strict content and purity limits, usually close to the 100% mark but always certified for safe transit. Hazards include both the potential for explosive decomposition under high heat and health risks tied to long-term exposure, so regulatory standards push for clear hazard pictograms and transport designations. Even subtle variations in composition can change how batches behave, so technical data must match up exactly with internal protocols for storage and use. In my own lab experience, a missing warning symbol or ambiguous concentration detail has, more than once, set off serious debates among technicians and safety officers. Trust in the label doesn’t replace diligence, but it sure helps set expectations for what you’re dealing with.

Preparation Methods That Matter

The chemistry behind how Tert-Amyl Peroxybenzoate gets made reveals much about the evolution of the industry. The standard route links tert-amyl alcohol with benzoyl chloride, using an alkaline medium to drive the formation of the perester. This synthesis seems straightforward at scale yet pulls in the constant worry of controlling exothermic blips and avoiding contamination by related impurities. Purification steps, which include washing, distillation, and sometimes vacuum drying, keep the final product stable and safe for downstream use. My own attempts at small-scale synthesis drove home how important it is to keep an eye on temperature spikes and to work with glassware that can take a little rough handling, since even a minor slip can mean hours lost to cleanup or rework. Luckily, years of trial-and-error have left most commercial producers with highly tuned methods, and the resulting consistency makes life a bit easier for others down the chain.

Chemical Reactions and Modification Pathways

In reaction terms, Tert-Amyl Peroxybenzoate fits smoothly into the role of free-radical initiator, decomposing at a predictable rate to release radicals that start or promote polymer chains. Beyond that, it finds use as a platform for modification, since the peroxy and benzoate structure can be adjusted to tweak solubility, reactivity, or compatibility with specific monomers. Sometimes, downstream chemists loop in ligands or introduce catalysts that alter the breakdown pathway, letting them customize how polymers grow. Watching colleagues explore how subtle changes in the peroxide backbone steer the properties of end-use materials left a strong impression: there’s plenty of room for practical flexibility if you know what you’re aiming for, but one stray variable can sour a whole production run. It underscores why real-world chemical development always feels like a partnership between synthetic routes and the needs of the technicians grinding through day-to-day production problems.

Synonyms and Product Names

Keeping track of synonyms helps everyone in labs and on the production floor avoid mix-ups, since Tert-Amyl Peroxybenzoate shares its chemistry with a long parade of alternate names. You might find it listed as 1,1-Dimethylpropyl peroxybenzoate or by catalog entries that use trade names hinting only at function or grade. This creates confusion when reviewing literature or ordering supplies, especially for newcomers to the field. As a student, I learned the hard way how a mismatched synonym could bring research to a halt — our shipment of “peroxybenzoate” turned out to be a similar compound with a different peroxyalkyl group, throwing our schedules and supplies into chaos. Reliable cross-references in chemical catalogs, along with vigilance on the ordering side, make these headaches avoidable for more experienced hands, but the issue never completely fades.

Safety and Operational Standards

Handling Tert-Amyl Peroxybenzoate calls for respect, not just a token pair of gloves and the hope that nothing goes awry. Lab protocols drilled into me the importance of cool, dry storage and reinforced containers, ideally in explosion-proof cabinets and away from sources of ignition. Regulatory bodies demand clear risk communication, and rightly so — mishaps with peroxides leave no room for complacency. Regular health checkups for frequent handlers, organized training on emergency procedures, and consistently updated safety data sheets back up daily operations. Real accidents trace back more often to lapses in routine or overlooked maintenance than to any deep flaw in the material itself. It isn’t paranoia to double-check secondary containment or to keep detailed logs of storage temperatures; it’s just good routine when working around chemicals that pack this much energy in a bottle. Time spent on training and prevention pays off, with fewer close calls and smoother regulatory audits down the line.

Application Areas in Industry

Polymers and composite materials draw nearly all the attention here, but Tert-Amyl Peroxybenzoate has also cropped up in smaller roles in specialty synthesis, such as surfactants, adhesives, and certain coatings with unique mechanical qualities. From oversight on extrusion lines to troubleshooting batch inconsistencies, plant chemists and engineers find themselves relying on the predictable action of this compound to get more mileage and fewer defects out of monomer stocks. The chain reaction that takes place in a reactor — started and controlled by initiators like this one — decides whether pipes pass quality tests, automotive parts hold up on hot days, or film coatings stretch without tearing. My network of friends in the plastics sector swap stories of productive runs and, more rarely, cautionary tales of downtime caused by unexpected process upsets — most of which come down to misjudging the subtleties in initiator handling or storage. Even in pilot-scale innovation shops, the difference between a promising prototype and a shelf-ready material often hinges on the reliability of Tert-Amyl Peroxybenzoate to deliver reproducible initiation from one week to the next.

Research, Development, and Ongoing Challenges

Keeping pace with industry demands, chemists keep working to boost efficiency and lower the risks tied to the use of organic peroxides. The ongoing push for greener chemistry steers research toward making safer-by-design variants or embedding sensors that warn about breakdown before things get dangerous. Analysts and synthetic chemists pore over reaction mixtures, looking for ways to squeeze more reliability out of less, whether by blending in stabilizers or switching up the supporting solvents in production. I’ve watched research teams build elaborate pilot studies where every process variable gets tracked, hoping to flag weak points before launching into commercial-scale runs. Transparency in reporting, peer-reviewed process improvements, and global cooperation on best practices all feed into the evolution of Tert-Amyl Peroxybenzoate’s industry role. That legacy of incremental innovation, sometimes measured out in late nights or stubborn equipment repairs, builds resilience across the sector.

Toxicity Research and Worker Safety

Nobody wants to trade productivity for harm, so research on the toxicological side remains steady. Exposure risks span skin and eye irritation, respiratory effects from vapors, or more serious consequences after chronic contact. Animal studies signal caution without painting a picture as grim as some of the heavier industrial chemicals, but there’s plenty of unknown territory. Most operations today run under strict occupational exposure limits, and safety measures tend to get reviewed often. Medical monitoring and worker self-assessment catch minor symptoms before they turn into chronic issues. A forgetful moment with poorly fitting gloves or hurried cleanup can remind anyone just how real these risks become in daily routines. Progress in material safety will come not just from improved formulations, but from frontline practices: fostering a culture where reporting near-misses and sharing lessons learned gets treated as essential, not burdensome.

Future Prospects and Innovations

Looking forward, Tert-Amyl Peroxybenzoate lands right in the crosshairs of the next generation of polymer science. Pressure continues to mount for chemicals that work under tighter environmental limits, with less waste and stronger compatibility with bio-based monomers. I see the most exciting developments in how digital process controls and real-time analytics offer the next wave of control — tuning initiator delivery to match tiny shifts in reaction temperature and composition, squeezing out both inefficiencies and dangerous outliers before they scale up to real risks. Additive manufacturing and custom polymer blends create a premium for initiators with adjustable profiles, where a fine-tuned decomposition rate makes or breaks new product lines. To get there, research teams need steady funding, open lines of communication between suppliers and end users, and an appetite for real-world feedback. The broader push for sustainability, combined with a still-growing demand for high-performance plastics and elastomers, means the story of Tert-Amyl Peroxybenzoate remains deeply tied to the world's changing needs. Personal experience tells me that as the chemical toolbox diversifies, the market will keep circling back to compounds that deliver reliability and safety, not just theoretical promise.




What is the primary use of Tert-Amyl Peroxybenzoate [Content ≤ 100%]?

The Real Workhorse Behind Quality Plastics

Plastics show up in just about every corner of daily life, from the shiny dashboard in the car to the electrical outlets in the kitchen. People who build these goods depend on something behind the scenes: chemicals that control when and how materials harden and take shape. Tert-Amyl Peroxybenzoate often leads this charge in industrial settings. The primary reason for this chemical’s popularity comes down to its role as a radical initiator. It’s not a product most folks want to keep under the sink, but in the hands of a trained manufacturer, it can work real magic for everything from shoes to phone cases.

Why the Polymer Industry Trusts This Compound

I’ve talked with engineers who know their way around plastics. They don’t pick random ingredients. Tert-Amyl Peroxybenzoate often lands on their lists because it helps kickstart polymerization—the process that turns small chemical building blocks into the sturdy products people use every day. Its decomposing temperature sits right in a sweet spot for several resins, especially for unsaturated polyester resins and acrylics. That means less energy goes to waste, as opposed to other chemical initiators that demand more heat or special handling. In a world where energy prices and environmental impact keep making headlines, that efficiency matters.

In an industry where consistency remains king, this compound delivers predictable results batch after batch. A batch of bathroom tiles made today looks and feels the same as one produced last year. Companies rely on this type of performance. When I visit plastic processing plants, I've seen that quality control teams track these initiators closely. Tert-Amyl Peroxybenzoate can help reduce the creation of waste or defective parts—an important fact in keeping costs down and jobs secure.

Health and Environmental Considerations

No chemical comes without questions. Factory workers who handle Tert-Amyl Peroxybenzoate need solid safety training. This isn’t a household cleaning product. Mishandling can cause skin irritation or even fire hazards if basic precautions slide. Countries that take workplace safety seriously, like Germany or Japan, demand detailed handling protocols and investment in training. This level of oversight actually helps companies win public trust. News travels fast, and any carelessness can hurt not just a business’s bottom line but consumer faith in the entire industry.

Environmentally, the picture stays mixed. On one hand, efficient polymerization means less energy and fewer chemical leftovers. That’s a step forward. On the other, the risk remains from accidental spills or improper disposal. Modern plants use containment and waste treatment strategies to keep harmful chemicals far from groundwater or surrounding neighborhoods. In places lagging on environmental rules, more needs to be done. For lasting progress, regulators can push for transparent reporting and enforced consequences for sloppy practices.

Better Plastics Start With Smart Chemistry

Tert-Amyl Peroxybenzoate points to the quiet ways chemistry shapes everyday life. The broader public might never see or handle pure chemical compounds, but their impact shows up in long-lasting kitchen appliances and medical devices that don’t fail. The challenge lands in finding a balance: delivering reliable products while keeping people and the planet safe. With honest conversations between manufacturers, regulators, and consumers, real improvements can unfold—both in how things are made and in the quality of life for everyone who uses them.

What are the storage and handling requirements for Tert-Amyl Peroxybenzoate?

Why This Chemical Deserves Careful Attention

Tert-Amyl Peroxybenzoate shows up in many industrial applications, especially for polymer chemistry and as an initiator in certain plastics. Anyone who has worked in a plant or lab knows the extra care chemicals like this demand. Walk into a storeroom where peroxy compounds are on the shelf, and it’s clear—the rules protect people, not just property. Mishandling creates risks you can't ignore.

Physical Traits Call for Respect

This compound looks like a clear liquid. It doesn’t come with a strong odor that might alert you to its presence, and spills can spread fast. The real concern kicks in with its tendency to break down fast when warmed up or mixed with incompatible substances. It can release heat, flammable vapor, and cause fire even at lower temperatures than most people expect if the system loses control.

Safe Temperatures Trump Convenience

Facilities that use Tert-Amyl Peroxybenzoate rely on chilled storage. Never trusted leaving it on the regular shelf, even for a day. USDA and OSHA guidelines mark the line at below 30°C (86°F), but most safety sheets point to stricter targets: under 25°C, sometimes lower. Think of a walk-in fridge used only for reactive chemicals. Heat is the enemy, not just from the weather, but from nearby equipment or direct sunlight through windows. One good practice? Distance the storage from boilers, heaters, or any system with hot surfaces.

Container Choices Matter

Experience says always pick original containers or those rated for peroxides. Never improvise. Metals like iron and copper can trigger breakdown, so plastic or glass—certified for the compound—works best. Containers get tightly sealed, labeled, and never overfilled. Even a small leak turns into an emergency. Storing these in trays catches spills before they reach drains or react with flooring.

Spacing Avoids Cross-Reactions

Stories about fires spread by incompatible storage still haunt old supervisors. In practice, that meant separating oxidizers—including this one—from fuels, acids, flammable liquids, and reducing agents. Each chemical gets its own cubby, never stacked together. Shelves stand solid so that nothing falls—earthquake zones use straps, everywhere else follows the same caution.

Air Gets Managed, Not Trusted

Airing out rooms feels more important here. Mechanical ventilation beats open windows. Labs and warehouses need air changes to sweep out fumes, especially where drums get opened for sampling or mixing. Explosion-proof fans and light fittings may cost more, but memories of near misses always make that bill feel small.

Training Stops Trouble Before It Starts

Policies rarely work if no one follows them, so education matters. Teams go over the consequences, not just the rules. Personal protective equipment—goggles, gloves, aprons—stays within arm's reach. Spills and leaks trigger set responses: block off the area, ventilate, clean up with trained staff only, and dispose of waste in drums picked up by certified handlers. Listening to old-timers who have seen mistakes keeps younger staff wary, not careless.

Better Planning Prevents Loss

Good records shrink risk down further. Only order what the crew uses within months, and rotate stock so nothing sits forgotten in the back. Regular inspections for bulging or corroded containers keep surprises to a minimum. Insurers know these routines lower costs, but to anyone who’s ever looked at a melted shelf, it means workers go home safe and companies avoid enforcement visits.

What are the potential hazards and safety precautions for this product?

Understanding the Real Risks

Over the last decade, stories about injuries and accidents from everyday products have grown more familiar. Hidden dangers aren’t always just fine print buried in user manuals—they can appear in homes, schools, or at work, where people expect safety. I’ve seen firsthand how easy it is for someone to skip a warning label, often because it feels like another legal afterthought, not a real threat. The trouble is, modern manufacturing blends convenience with risk. Shortcuts in storage, careless handling, or even assumptions during use can turn an ordinary product into a real hazard.

Common Hazards with Popular Products

Chemicals leap out as a leading concern, whether in cleaning agents, gardening supplies, or cosmetics. Breathing in fumes or direct skin contact can trigger allergies or much worse—hospital trips for chemical burns or poisoning. I’ve known a neighbor who developed respiratory problems from using a “harmless” air freshener in a small room. Battery-powered gadgets, from toys to power tools, carry electrical and fire risks. Left in the sun or connected to the wrong charger, batteries overheat fast, causing property damage or life-threatening burns.

Sharp edges, strong magnets, or small detachable parts create choking hazards, especially for kids. A news story last year covered a spike in ER visits for magnet ingestion. Even products designed for entertainment—hoverboards, electric scooters—can lead to broken bones if used without helmets or left charging overnight.

The Human Factor

People often trust familiar brands but accidents rarely discriminate. I remember being shocked by a blender lid flying off because someone hit the highest speed setting right away—hot soup shot across the kitchen. Sometimes it’s a rush to finish chores, or sometimes it’s a skipped step in setup. Preventing these accidents starts with respecting the real world, not just the instruction manual.

Taking Action: Practical Safety Precautions

  • Read the manual and warning labels. Nobody likes paperwork, but five minutes of reading can prevent hours in an emergency room. Look for specific cautions around electrical use, heat, or chemicals.
  • Use protective gear. Gloves, goggles, ventilation masks, and proper clothing may seem like overkill, but they matter. I once got mild chemical burns because I thought “just a quick wipe” with a cleaning spray wouldn’t hurt bare skin.
  • Keep products away from children and pets. Store sharp, small, or electric items up high or in locked cabinets. Child-resistant packaging adds a layer of security but isn’t foolproof.
  • Follow age and usage guidelines. Many products label minimum ages for a reason—misuse isn’t always obvious until it’s too late.
  • Maintain and inspect regularly. Check cords, plugs, and batteries for wear. Replace any part that’s cracked or frayed, whether or not it looks serious. Outdated or recalled items should go straight to recycling or hazardous waste disposal centers.
  • Be mindful of product recalls. Sign up for manufacturer alerts or government recall lists. I once discovered a major fire risk in a brand of kitchen appliance I’d used weekly for years.

Building a Culture of Safety

What really works is sharing real-life examples—at home, in schools, or at community meetings. Safety doesn’t come just from sealed boxes or factory checklists; it grows from everyday conversations. People trust stories and learn from experience far more than from cold instructions. By making safety a habit, families and businesses protect not just themselves, but everyone around them.

What is the shelf life and recommended storage temperature?

Understanding Shelf Life in Daily Life

A lot of what we buy—whether it’s food, medicine, or even household cleaning supplies—has guidance about how long it remains at its best. That information shows up as an expiration date or a “best before” stamp, and from personal experience, those dates shouldn’t be ignored. I once pulled out cold medicine from the back of a bathroom drawer during flu season; it had hung around a few years beyond its expiry. I took it anyway, hoping for the best, but relief never came. Later, I learned that active ingredients can lose punch as time passes, leaving you with a false sense of security.

The Science Behind Freshness

Shelf life isn’t just a suggestion. Studies by agencies like the U.S. Food and Drug Administration show that active ingredients change due to exposure to air, humidity, and light. Vitamins in food start to break down, and antibiotics lose their power. Canned soup or aspirin tucked away in a warm garage will age much quicker than a stash stored in a cool, dry kitchen cupboard. Microbes love moisture and warmth, too, making those spots a risky place for supplies meant to last.

Everyday Storage Lessons

Refrigerators and pantries aren’t just modern conveniences; they’re defenses against spoilage. Keep milk and eggs at 4°C (about 40°F) or colder. Shelf-stable snacks like granola bars do best below 25°C (77°F) and away from direct sunlight. I know someone who keeps chocolate in the car for road trips—it turns white and chalky, not only losing flavor, but changing texture because fats separate and oxidize above recommended storage temperature.

Even dry goods have their quirks. Flour kept in a humid spot can attract pantry moths or clump together, so I make it a habit to stash flour in an airtight container well above the kitchen floor, where it stays cooler and drier. Spices might look fine after a few years, but open the lid and the aroma hardly greets you. Food safety agencies, like the CDC, advise tossing foods with signs of mold, off-smells, or broken packaging.

Solutions for a Longer Shelf Life

Rotation comes in handy—use the oldest items first, and put new purchases in the back. For vitamins and over-the-counter medicine, check labels every few months and safely get rid of expired stock. For professional environments, the World Health Organization advises periodic reviews to avoid accidentally using old or ineffective materials.

The same principles apply to critical items like insulin or vaccines. Improper storage or using expired stock can have life-threatening consequences, which is why pharmacists and hospitals rely on electronic logs and regular checks.

Building Good Habits

Small changes make a difference. After losing money tossing spoiled groceries, I invested in airtight storage bins and even a thermometer for the fridge. Foods last longer, and I waste less. Clear labeling and organization keep everything visible and within safe reach. This mindful approach not only saves cash, but supports health and safety at home.

Shelf life ties directly into both food security and public health. Following the science and using simple storage tips protects more than just our wallets; it keeps households, communities, and even businesses running smoothly.

Is Tert-Amyl Peroxybenzoate compatible with other chemicals or materials?

A Closer Look at Everyday Chemistry in Industry

Working with chemicals in manufacturing brings a lot of hidden challenges. Tert-Amyl Peroxybenzoate often pops up in conversations about polymerization, curing, or composite production. Its role is pretty clear—it kickstarts reactions that turn resins or monomers into tough plastics or rubbers. The big question always comes down to compatibility. Will mixing this peroxide with an additive, stabilizer, or filler end up creating more problems than it solves?

Risks in the Mix

There’s a reason experienced chemists keep a careful eye on Tert-Amyl Peroxybenzoate’s use. This organic peroxide packs a punch, releasing free radicals that jumpstart chemical changes. Drop it in with certain strong acids, amines, or heavy metal compounds and you get rapid breakdown—or sometimes, outright dangerous reactions. These problems stem from the substance’s tendency to decompose if it encounters incompatible materials. Fire, fume generation, or runaway reactions have happened when people brushed off the warnings.

Real-World Examples

I've seen shops push scheduled work because a shipment of this initiator arrived alongside strong reducing agents. Tossing the two into one staging area amps up risk. It isn’t paranoia. Data from industrial safety boards show loss of control incidents that trace right back to stacking or blending reactive chemicals. In the lab, even something as simple as storing Tert-Amyl Peroxybenzoate near bases or using unlined iron vessels can degrade it. Someone always thinks a product label is just legal fine print. Then storage drum pressure rises, seals split, and waste costs go through the roof.

Material Choices Matter

Containers—what holds the chemical during shipping or processing—play a huge part. Stainless steel or polyethylene hold up, but galvanized iron or regular steel spark trouble. The peroxide chews through coatings and leads to deposits that can further react. Gaskets, too, have tripped up operations. Nitrile rubbers stand up well, but swap in natural rubber and softening or leaks begin fairly fast. Checking for chemical resistance before buying new hoses or seals can save real money and downtime. An incident caused by not checking compatibility typically means lost batches or clean-up costs that dwarf any savings from cheaper materials.

Solutions Through Vigilance and Information

Compatibility problems don’t require high-end technology to spot. Honest Material Safety Data Sheets (SDS) supply clear lists of what to avoid. I’ve learned to read the technical documentation of every material used alongside Tert-Amyl Peroxybenzoate, no matter how routine it seems. Real training—where teams see pictures of drum failures or ruptured vessels—makes safety concrete in a way that memos never could. Common-sense steps, like only preparing mixes right before use and double-checking suppliers, really cut down on near-misses.

The Value of Respecting the Risk

No one signs up for accidents or product failures. Reliability grows from a culture where asking “Are these materials a good fit?” never gets dismissed. Even seasoned teams check in with vendors and run small-batch trials before producing materials at scale. Everyone, from managers to handling staff, benefits from getting the basics right. Assuming Tert-Amyl Peroxybenzoate’s compatibility without verification stands as a shortcut too costly for any operation wanting to deliver on safety and quality.

Tert-Amyl Peroxybenzoate [Content ≤ 100%]
Names
Preferred IUPAC name Peroxybenzoic acid, 1,1-dimethylpropyl ester
Other names Tert-amyl peroxybenzoate
Peroxybenzoic acid, 1,1-dimethylpropyl ester
tert-Pentyl peroxybenzoate
TBPB
TAPB
Pronunciation /ˌtɜːrtˈæmɪl pəˌrɒk.siˈbɛn.zəˌeɪt/
Identifiers
CAS Number 614-45-9
Beilstein Reference 2960061
ChEBI CHEBI:87153
ChEMBL CHEMBL564141
ChemSpider 23672773
DrugBank DB14163
ECHA InfoCard 03c8dde6-76e6-4f29-8415-4a1e4aaa256d
EC Number 246-678-3
Gmelin Reference 7875
KEGG C18623
MeSH D010708
PubChem CID 11498
RTECS number RG2100000
UNII U1QV8IN7SJ
UN number UN3105
Properties
Chemical formula C12H16O3
Molar mass 222.28 g/mol
Appearance Colorless to pale yellow transparent liquid
Odor Faint aromatic odor
Density 1.03 g/cm3
Solubility in water Insoluble
log P 3.6
Vapor pressure 0.2 mmHg (20°C)
Magnetic susceptibility (χ) -7.4e-6
Refractive index (nD) 1.496
Viscosity 3.5 mPa.s at 20 °C
Dipole moment 2.7 D
Thermochemistry
Std molar entropy (S⦵298) 365.0 J·mol⁻¹·K⁻¹
Std enthalpy of formation (ΔfH⦵298) -444.8 kJ/mol
Std enthalpy of combustion (ΔcH⦵298) -3639.7 kJ/mol
Hazards
GHS labelling GHS02, GHS07, GHS08
Pictograms GHS02, GHS07, GHS08
Signal word Danger
Hazard statements H242, H302, H332, H312, H318, H335, H400
Precautionary statements P210, P220, P234, P261, P264, P270, P271, P272, P273, P280, P301+P310, P302+P352, P305+P351+P338, P308+P313, P333+P313, P337+P313, P370+P378, P403+P235, P411+P235, P405, P501
NFPA 704 (fire diamond) 3-3-2-W
Flash point > 70°C (closed cup)
Autoignition temperature 215 °C
Explosive limits Explosive limits: 1.1–7.0%
Lethal dose or concentration LD50 Rat oral 4,862 mg/kg
LD50 (median dose) LD50 (median dose): Oral Rat 3000 mg/kg
NIOSH SN4225000
PEL (Permissible) PEL (OSHA): Not established
REL (Recommended) 0.2 mg/m³
Related compounds
Related compounds tert-Butyl peroxybenzoate
tert-Amyl hydroperoxide
Benzoyl peroxide
Cumene hydroperoxide