Tert-Butyl Peroxy-2-Ethylhexanoate (TBPEH): A Close Look at an Important Organic Peroxide

Historical Development

People working in the chemical industry have long searched for compounds that could kickstart reactions with a good amount of control and safety. Back in the middle part of the twentieth century, manufacturers started exploring ways to build bigger, better plastics, which called for more efficient initiators. TBPEH entered the scene during the growth years of the plastics boom. Industrial labs saw potential in tert-butyl peroxides, so chemists dug into various esters and their uses. Through the years, patents and technical journals have shown TBPEH gaining ground as the industry edged away from less stable, more hazardous choices. Its role as a polymerization initiator—especially for polyvinyl chloride (PVC)—drew plenty of attention, so standards for quality and use followed pretty quickly. Seeing the evolution of TBPEH shows how much demand shapes both product discovery and improvement.

Product Overview

TBPEH stands out as a clear or pale yellow liquid with a faint, fruity smell and a practical value for those working in specialty chemicals. It doesn’t stand alone as just another organic peroxide—its high activity paired with lower volatility helps users manage health and safety concerns, especially compared to more volatile peroxides. Chemists looked for a balance between reactivity and control, and TBPEH delivers well in that area. I remember engineers at a large resin plant explaining their switch to TBPEH for batch runs—less downtime from runaway reactions, and fewer headaches dealing with waste byproducts. These stories put a face on how technical progress moves practical choices for those who handle the stuff every day.

Physical & Chemical Properties

Pure TBPEH boasts a molecular formula of C12H24O4, with a molecular weight of about 232.32 g/mol. It boils up at roughly 120°C at reduced pressure, and it melts below –50°C, putting it far away from the dangers of solidification at room conditions. As a peroxide ester, TBPEH contains a relatively weak O-O bond, so it can release free radicals under controlled temperatures—making it invaluable to polymer chemists. Density measures in at roughly 0.89-0.91 g/cm³ at 20°C. This compound doesn’t mix much with water but dissolves well in most organic solvents. I’ve watched technicians check batches visually and by density as a fast screen for purity, something I respect for catching issues long before analytical labs return results.

Technical Specifications & Labeling

Most commercial TBPEH supplies carry a purity over 95%, with no more than 0.4% water content. Labels show hazard symbols in line with the Globally Harmonized System (GHS): flame over circle (oxidizer), exclamation mark (irritant), and health hazard icons. Safety data sheets lay out storage limits—not above 30°C, and usually with tempered glass or coated steel containers. Manufacturers must register with chemical control authorities in North America (EPA, OSHA), Europe (ECHA, REACH), and Asia, and these agencies push for clear information about safe use, transport, and disposal. I’ve found it’s essential for workplace safety—knowing the difference between old-style, patchy labeling and today’s bright, standardized warnings literally saves lives, especially for new hires or field support teams.

Preparation Method

TBPEH synthesis starts with the reaction of tert-butyl hydroperoxide and 2-ethylhexanoic acid, using an acid catalyst under careful temperature control. The process puts an emphasis on precision—run the reaction too hot or too long, you start getting unwanted byproducts or, even worse, an uncontrolled exotherm. Plant chemists tune the protocol to ensure complete conversion and cut down post-processing steps. Filtration, washing, and distillation remove residual acids and unreacted hydroperoxide. From my time shadowing process teams, I saw first-hand how scaling up lab reactions into safe, commercial practice means walking a fine line between efficiency and risk, keeping a close eye on everything from glass breaks to pH shifts.

Chemical Reactions & Modifications

TBPEH serves mostly as a radical initiator—its structure allows easy breakdown into tert-butoxy radicals under heat. These radicals set off chain reactions in vinyl chloride, acrylates, and unsaturated polyesters. In more specialized work, chemists tweak the parent structure to change reactivity or boost downstream compatibility, for example by swapping the acid ester or playing with tert-butyl groups. For research, TBPEH takes part in studies that probe kinetics of free radical mechanisms, helping scientists understand timing and rates in everything from resin hardening to latex production. I’ve read papers showing TBPEH modifications shave minutes off batch times or help achieve better polymer branching, which means smoother product quality out on the factory floor.

Synonyms & Product Names

TBPEH pops up under a bunch of names. Some chemists call it tert-butyl peroxy(2-ethylhexanoate), or TBPEH for short. Suppliers may list it as Perkadox 16, Trigonox 21, or Luperox 120. Each name usually connects with a particular technical grade or trusted manufacturer, so plant buyers pay attention to which trade names suit their application specs. I’ve heard experienced purchasing managers mention that catching small differences in a name can spell the difference between smooth process performance and lost batches, especially when regulatory standards have to line up between countries.

Safety & Operational Standards

Organic peroxides always need serious respect, and TBPEH is no exception. Handlers wear face shields, nitrile gloves, flame-resistant lab coats, and keep fire extinguishers nearby. TBPEH breaks down above roughly 60°C, so plant design usually sticks with water-cooled jackets, explosion-proof electricals, and regular ventilation checks. Emergency plans cover spill and fire containment—absorb spilled material with inert sand, carefully sweep up, and manage waste using standards for hazardous organic peroxides. OSHA and European DIRECTIVE 2012/18/EU list TBPEH as a monitored substance, so companies must report inventories and incident plans. I recall an incident years ago where poor monitoring led to a near-miss at a resin production plant; the aftermath underlined just how much routine drills and honest safety culture matter, compared to shortcutting for production speed.

Application Area

Plastic manufacturers prize TBPEH for controlled polymerization of PVC, polyethylene, and acrylic resins. Its steady radical release helps to build polymer chains with fewer side reactions. Fiberglass-reinforced plastics and composite producers use TBPEH during curing, making tough, crack-resistant materials for boats, pipes, and wind turbine blades. In elastomer processing, it steps in to crosslink rubber and improve temperature durability, which automotive and cable industries demand. Paints, coatings, and adhesives sometimes feature TBPEH-activated resins for faster setting and better bonding. From my own experience watching troubleshooting teams at specialty chemical plants, switching to TBPEH often shortens cycle times, trims waste, and helps manufacturers meet environmental rules on byproducts—a clear reminder how innovation pays back in real production settings.

Research & Development

Chemists keep searching for more efficient, safer, and greener initiators, and TBPEH stands as both a benchmark and a work in progress. Ongoing studies focus on temperature response curves, compatibility with new monomers, and ways to capture or recycle breakdown products. Research groups also take a hard look at substituting TBPEH with bio-based or less toxic alternatives, but for now, TBPEH’s reliability holds it in favor. Development teams explore packaging innovation—unit-dose sachets or safer ‘paste’ forms—for safer handling in small and medium shops. I’ve heard from lab managers at innovation centers that requests for custom TBPEH formulations—tailored purity, alternative solvents, or mixed blends—come in every quarter, so the R&D pipelines don’t rest idle.

Toxicity Research

Like most organic peroxides, TBPEH brings a risk profile that includes skin and eye irritation, respiratory tract issues, and—if handled recklessly—fire or explosion. Animal studies point to moderate acute toxicity, and regulators have flagged chronic effects with regular high-level exposure. Work crews carefully track time-weighted averages (TWA) and short-term exposure limits (STEL) in workplace air; monitoring badges and air-sampling pumps turn up in both big plants and pilot facilities. Proper waste treatment cuts down environmental leakage, which matters for surrounding communities as well as downstream users. My contacts in industrial hygiene repeat that the near-misses come from small lapses—leftover residues in cracked drums, or a slip in glove use. Sharing these stories drives better habits, especially with entry-level teams.

Future Prospects

Demand for TBPEH ties closely to trends in construction, automotive, and renewables. With global pressure building for cleaner performance and tighter controls on chemicals in workplaces, TBPEH’s profile could change. Researchers look at ways to improve energy efficiency, lower hazard profiles, and simplify transport rules. Advances in automation—remote sensors, AI-driven batch control—may boost handling safety, opening the door for wider use in places with limited chemical infrastructure. Sustainable chemistry projects eye TBPEH’s structure for clues on next-gen initiators, focusing on lower toxicity, ready biodegradability, and renewable feedstocks. Engineering teams who learn lessons from TBPEH’s history stand ready to apply those insights, whether tweaking reactor setups or mapping out future safety code updates.



What is Tert-Butyl Peroxy-2-Ethylhexanoate (TBPEH) used for?

The Workhorse Behind Plastic and Rubber Manufacturing

Tert-Butyl Peroxy-2-Ethylhexanoate, or TBPEH, isn’t a term most people throw around at the dinner table. Yet, it’s hard to go a day without touching something that owes its existence to this chemical. TBPEH makes its biggest mark in the world of plastics and rubbers, playing a crucial role in the creation of everyday things like auto parts, garden hoses, and those sturdy plastic containers stacked in kitchen cupboards.

The secret to this compound’s importance boils down to its job as a polymerization initiator. In the simplest terms, TBPEH helps start the reaction that turns small molecules, called monomers, into long chains we call polymers. With polyethylene and polypropylene, this step can decide the toughness, durability, and even the clarity of the final product. Without a good initiator, you’re left with weak, crumbly plastics that don’t survive real-world use. I’ve toured factories where one small slip in chemical ratios or mixing order meant thousands of pounds of wasted material—real money down the drain over a detail most folks don’t even see.

Why TBPEH Wins Out

Many other chemicals can get a polymerization reaction going, but TBPEH holds a few advantages that keep it in demand. Its stability means it won’t break down or explode just from sitting in a warm warehouse, unlike some older options. This feature cuts down on storage headaches and keeps production lines running safer and smoother. Also, its ability to kick off reactions at relatively low temperatures fits nicely with modern energy-saving goals in manufacturing. Less wasted energy translates into lower costs and a nod to environmental concerns that governments and communities have started to crack down on.

Safety Matters, and the Concerns Are Real

Handling peroxides always brings risk. Even stable compounds like TBPEH call for proper procedures. Factories using this chemical invest in special storage rooms, safety training, and strict handling rules. In the years I’ve spent consulting for manufacturing plants, I’ve seen how a focus on safety culture can make all the difference. Even one spill or fire could threaten dozens of workers and cause costly downtime. Statistics from the Occupational Safety and Health Administration (OSHA) show the value in regular training—facilities with constant safety refreshers report far fewer peroxide incidents.

Regulatory agencies watch chemicals like TBPEH closely. In the U.S., the Environmental Protection Agency (EPA) asks companies to report how much they buy and store. This oversight helps first responders prepare for emergencies and pushes manufacturers to use less hazardous materials where possible. As countries tighten chemical inventories and transport rules, finding greener alternatives or safer processes will likely shape the next chapter for TBPEH’s place in industry.

Can Anything Replace TBPEH?

So far, TBPEH hasn’t met a perfect replacement. Its mix of stability and effectiveness keeps it at the front of the pack, especially for challenging manufacturing runs. Researchers are hunting for bio-based or less hazardous molecules that could take its place, yet testing takes years and lots of investment. For now, the prudent move for chemical companies is focusing on responsible stewardship—better containers, real-time monitoring equipment, and transparent reporting. It’s not just about ticking regulatory boxes; workers, nearby communities, and the reputation of entire industries ride on how chemicals like TBPEH get managed.

What are the storage and handling requirements for TBPEH?

Understanding TBPEH’s Risks

TBPEH, also known as tert-Butyl peroxy-2-ethylhexanoate, plays a vital role in manufacturing, especially when creating polymers and resins. It sits on the list of organic peroxides that demand respect for their potential hazards. This substance can break down and trigger fires if not treated the right way. Knowing its threats is not just about reading the label—safe storage and handling routines protect workers and keep businesses running without trouble.

Temperature and Ventilation Matter

Heat acts as the enemy for TBPEH. Left around in a warm warehouse or forgotten near processing equipment, this compound starts to lose its stability. Refrigeration helps, but not every facility has cold storage. At a minimum, TBPEH deserves a cool, shaded section of the building, away from direct sunlight and heat sources.

Air movement helps as well. Fumes from TBPEH cause headaches and worse, so the room storing it should have reliable ventilation. In my time walking through chemical plants, I’ve learned that good airflow can make all the difference on a summer day.

Fire Separation and Spill Preparation

Organic peroxides and open flames never get along. Storing TBPEH near combustibles can turn a minor mistake into a serious accident. A fire-resistant cabinet or isolated chemical locker cuts down the risk. Some companies use automated alarms that detect leaks early. I’ve seen these save the day more than once, catching small problems before they grew out of hand.

Leaks happen. That’s just reality in an industrial setting. Absorbent materials, proper neutralizers, and clear markings get workers ready if the drum tips over. A plan for quick cleanup goes hand-in-hand with safe storage.

Labels and Rules Pay Off

Plain, sturdy labels—easy to read from a distance—help everyone know what’s in each drum. That might sound simple, but in fast-moving warehouses, confusion finds its way into corners when labels fade or fall off. In my early days, a nearly faded tag on a drum led to a frantic scramble just because no one knew what was inside.

Access control also plays a big part. Only trained workers should handle TBPEH, and regular reminders about the PPE (like gloves and goggles) help them stay sharp. Chemical safety training often gets tucked into a Monday morning meeting, but the message sticks with routine practice, not just slides.

Reliable Supply Chains and Regular Checks

Every month, take a walk through the storage area. Watch for broken seals, missing labels, or questionable containers. Regulations require this, but the real value comes from spotting a problem before inspectors do. Solid inventory controls keep old stock from being overlooked and unused drums from sitting until they become a headache.

Sustainable Practices Build Trust

Proper storage isn’t about chasing paperwork. Responsible handling convinces communities, staff, and inspectors that a business cares about health and safety. News spreads fast about chemical mishaps, but quiet diligence goes a long way in protecting everyone involved. Good neighbors in industry aren’t measured by their words but by their careful routines around compounds like TBPEH.

What are the safety precautions for working with TBPEH?

The Risks Are Real

Talking about TBPEH (tert-Butyl peroxy-2-ethylhexanoate) isn’t just for chemists or folks in industrial plants. Handling chemicals like this turns routine jobs risky—quickly. It’s a strong organic peroxide found in plastic factories and labs, and with energy packed into its bonds, things go south fast without care. The fumes hit hard, and spills ramp up fire risks. It’s not fear-mongering to say a splash can do real harm or that vapors cause lasting problems to the lungs; it’s what years on the floor have hammered in. Mistakes have cost good workers their health, burned skin, and shut down whole lines.

Personal Responsibility on the Floor

In the field, rules written down aren’t just paperwork. Too many times, I’ve seen new guys shrug off goggles or rush the job because breaks are up. Splashes to the eyes or lungs gulping fumes make the danger real in seconds. Always treat TBPEH like a loaded gun. Lab coats and gloves are basic—nitrile types, not the cheap latex ones. Goggles with side shields stop splashes. Face shields matter during pouring or mixing. Long sleeves and closed shoes keep splashes off skin; short sleeves have brought regrets. Respirators aren’t for show; you know how your nose tingles if you catch a whiff of this stuff. More than once, they kept us out of the hospital during accidents.

Ventilation and Work Zones

I started out in workspaces with poor airflow—bad move. You can sense heat and shorts in the air, and those fumes linger right at nose level. Ventilation stands as the unsung hero. Keep fans running, hoods in prime shape, and sniff out leaks before problems stack up. Regular checks help. Spills got far fewer once we stuck to working over spill trays and kept containers closed outside the work area. Simple routines make disasters less likely.

Storage Keeps Trouble at Bay

One of my mentors stressed this: TBPEH and heat don’t mix. Never store drums by the loading dock, or anywhere direct sun hits. Fridges or cool, shaded areas matter more than people think, even if it means lugging heavy drums farther. Shocks and friction trigger explosions. Always keep separate from acids, metals, and anything flammable. Dedicated shelves with clear labels prevent rookie mistakes, and I’ve seen double-checking storage lists save lives.

Fire Control Means Real Preparation

The first time a drum leaked and smoke started, the team scrambled. Fire extinguishers made for peroxides—never the cheap foam ones—stood ready, but only because we ran weekly checks. Practice fire drills once a month. Know the exit routes and muster points. A little muscle memory goes a long way when alarms blare. I’ve watched too many skip drills, thinking it’s just company policy, but drill practice means fewer panics and fewer mistakes when time crunches.

Emergency Eyewash and Showers: Non-Negotiable

During a spill, you don’t want to run down halls dripping chemicals. Eye wash stations and safety showers sit right beside the work zone for good reason. Everyone in the workshop practices reaching one with their eyes shut. I’ve seen quick rinses limit injuries from what could’ve been hospital cases to a good scare and cautionary tale at lunch.

Training Makes It Routine, Not Scary

I’ve found that the folks most at risk are the ones who skip the training because they've “done it for years.” New regulations, new formulations—it all changes fast. Refresher courses every few months don’t waste time; they build habits. TBPEH isn’t forgiving, but regular drills and safety walk-throughs shape confident, steady hands and sharp eyes for danger. In the end, safety with TBPEH isn’t fear—it’s respect for chemistry, experience, and the people working beside you.

How should TBPEH be transported?

Understanding TBPEH Risks in Transit

Transporting TBPEH—tert-butyl peroxy-2-ethylhexanoate—should always start with a clear understanding of what it can do under stress. Just a small temperature shift can trigger violent breakdown, which puts drivers, warehouse crews, and the surrounding environment at real risk. Growing up in a chemical manufacturing town, I saw trucks carrying substances that demanded respect. TBPEH falls right in that category. Its instability makes it more than just another hazardous material on the road.

Temperature Control Takes Priority

Most chemical incidents I've followed through the years trace back to sloppy handling or ignorance about the material inside the drum. TBPEH wants a cool ride, with temperatures well below 30°C. I remember a story from a regional depot: they lost an entire shipment due to a refrigeration glitch. The clean-up caused a shutdown, and folks nearby got sick from the fumes. To avoid those kinds of emergencies, refrigerated trucks or insulated containers should always take center stage. Relying on basic weather forecast apps or hurried checks doesn’t cut it. Digital temperature loggers and real-time monitoring put everyone in a better spot. If managers see a spike toward danger levels, they can quickly choose a safer route or stop the journey.

Packaging and Securement Save Lives

A good container means fewer nightmares for drivers and warehouse staff. TBPEH should travel in tightly sealed, certified drums made from materials that won’t react or break under pressure. It’s not just about preventing leaks; even a sealed drum that tips or splits inside a moving truck can unleash disaster. Regulatory labels, solid fastenings, and secondary containment add extra layers of safety.

Having helped out in a friend’s freight business during a summer break, I saw the headaches caused by small oversights—straps left slightly loose, containers missing warning stickers. Once, a drum of industrial cleaner broke open, ruining thousands in merchandise and sending fumes through the warehouse. Multiply that by TBPEH’s risk profile, and a small slip suddenly becomes national news.

Clear Communication and Trained Personnel

Nobody benefits from secrecy or confusion on the road. Any crew handling TBPEH must know what’s inside, how to spot trouble, and what to do if something goes wrong. Regular drills run by the company sharpen fast reaction skills. Emergency authorities and route planners also deserve up-to-date, clear-cut information. If a truck with TBPEH gets into an accident, a swift, informed response keeps damage and panic to a minimum.

Direct communication never feels like a waste. The haulage manager should keep in touch with the driver, sharing weather alerts, road closure updates, or even just a heads-up about rest stops that suit hazardous loads. That kind of teamwork cuts down mistakes.

Strict Routes and Risk Awareness

City streets and residential roads shouldn’t see TBPEH trucks. Industrial routes, planned with the help of local emergency planners, steer clear of schools, hospitals, and homes. The less public exposure, the better. Technology helps here, letting companies pick smart detours or monitor traffic problems before they become accidents.

No transport job will ever be without risk, but tough standards—backed by training, airtight containers, temperature management, and steady communication—make a world of difference. People’s lives, land, and air all get a bit more breathing room.

What is the shelf life of TBPEH?

Basic Facts About TBPEH Storage

TBPEH—known in full as tert-butyl peroxy-2-ethylhexanoate—lands in that category of industrial chemicals that demand respect. It shows up in polymer production, especially for plastics, and also acts as an initiator in various chemical reactions. Talking to engineers and lab techs who work with TBPEH, the first thing they stress is how much storage matters. Like most organic peroxides, TBPEH doesn’t last forever. It needs careful handling to avoid nasty surprises, not just for quality but for safety.

How Long Does TBPEH Last?

Manufacturers usually mark a shelf life of twelve months for TBPEH when stored below 25°C (77°F) in tightly closed containers, away from light and moisture. This counts as a best-case scenario. If the temperature creeps up—or containers get exposed to air and water—decomposition speeds up. Anyone using older stock runs the risk of lowered reactivity. Worse, the risk of runaway decomposition increases, and nobody wants a storage room full of unstable peroxides.

Stories from the Field

In labs where I’ve watched TBPEH handled, staff never treat the expiration date as soft guidance. There’s a reason people keep temperature logs for peroxide cabinets and run checks on old bottles before use. In one plant, they pulled a routine sample for titration and found active oxygen levels had dropped well below spec—six months before expiry. Turns out the storage room had a busted cooling vent and TBPEH sat at 32°C for weeks. The chemical wasn’t just weak; it was turning yellow and sticky, raising alarms.

Why This Matters for Safety and Business

Sticking to shelf life isn’t nitpicking for people who use TBPEH. Chemists want reliable results and safe work spaces. TBPEH past its prime brings wildcards—unexpected reactivity, absence of performance, or even explosions. A report from the European Chemicals Agency spells out the hazards of decomposed organic peroxides. Some of the worst lab accidents trace back to expired or improperly stored stocks.

Business takes a hit, too. A plastics maker using out-of-date peroxide ends up with incomplete polymerization, leading to batches that can’t hit quality standards. That trickles down the chain as lost time, wasted materials, and broken contracts. The companies that keep tight inventory controls and stick to rotating their stock don’t just avoid emergencies—they stay profitable.

Practical Steps to Keep TBPEH Fresh

Safe storage comes down to diligence. Store TBPEH in original, tightly sealed containers made of materials that can handle its oxidizing nature. Use chemical refrigerators set to the right ranges, double-checking thermostat accuracy every month. Label every batch clearly and track arrival and opening dates. Rotate the oldest-stock-first, just like grocers with milk. Train all workers to recognize early warning signs of peroxide degradation—off smells, color shifts, viscosity changes, or crystalline deposits.

Facilities committed to safe handling also invest in quick disposal routes. Once bottles cross expiry, they leave for incineration or approved chemical waste disposal sites. Some labs build in reminders on their digital inventory systems, making sure nothing overstays.

Looking Forward

Attention to shelf life doesn’t end with a date on paper. Whether in a start-up plastics plant or a research university’s chem lab, everyone wins by keeping TBPEH inside its safe window. Fresh peroxide means safe facilities, strong products, and peace of mind.

Tert-Butyl Peroxy-2-Ethylhexanoate Tbpeh
Names
Preferred IUPAC name 2-ethylhexanoic acid, 1,1-dimethylethyl peroxy ester
Other names Trigonox 21
Tert-butyl peroxyneodecanoate
TBPEH
tert-Butylperoctoate
Tert-butyl peroxyethylhexanoate
Pronunciation /ˌtɜːrtˈbjuːtɪl pəˈrɒksi tuː ˌiːθəlˈhɛk.sə.neɪt/
Preferred IUPAC name 2-ethylhexanoic acid tert-butylperoxy ester
Other names tert-Butyl peroxyneodecanoate
t-Butyl peroxy-2-ethylhexanoate
Peroxide, tert-butyl peroxy-2-ethylhexanoate
2-Ethylhexanoic acid, tert-butyl peroxide
TBPEH
Pronunciation /ˈtɜːrt ˈbjuːtɪl pəˈrɒksi tuː ˌiːθəlˈhɛk.səˌneɪt/
Identifiers
CAS Number 3006-82-4
3D model (JSmol) CC(C)CCCC(=O)OOC(C)(C)C
Beilstein Reference 633983
ChEBI CHEBI:87763
ChEMBL CHEMBL1671342
ChemSpider 88244
DrugBank DB11295
ECHA InfoCard 03-2119480872-46-0000
EC Number 208-744-4
Gmelin Reference 1620868
KEGG C19183
MeSH D01.268.556.100.220.099.425
PubChem CID 11315
RTECS number RG1250000
UNII KOA2VGP23W
UN number UN3105
CAS Number 3006-82-4
3D model (JSmol) `3DModel='CCCCC(C)(CC)C(=O)OOC(C)(C)C'`
Beilstein Reference 1461046
ChEBI CHEBI:30098
ChEMBL CHEMBL1669679
ChemSpider 157364
DrugBank DB11264
ECHA InfoCard ECHA InfoCard 100.016.926
EC Number 214-836-8
Gmelin Reference 1897238
KEGG C19609
MeSH D000080255
PubChem CID 60781
RTECS number OG9800000
UNII 7B91X2V523
UN number 3115
CompTox Dashboard (EPA) DTXSID0022523
Properties
Chemical formula C12H24O4
Molar mass 288.41 g/mol
Appearance Clear, colorless liquid
Odor Characteristic
Density 0.89 g/cm3
Solubility in water insoluble
log P 5.5
Vapor pressure 0.2 mmHg (20 °C)
Acidity (pKa) 11.2
Magnetic susceptibility (χ) -7.44 × 10⁻⁶ cm³/mol
Refractive index (nD) 1.420
Viscosity 12 mPa.s (25°C)
Dipole moment 2.42 D
Chemical formula C12H24O4
Molar mass 242.36 g/mol
Appearance Clear, colorless liquid
Odor Characteristic odor
Density 0.895 g/cm³
Solubility in water Insoluble
log P 3.73
Vapor pressure 0.2 mmHg (20°C)
Basicity (pKb) pKb: 12.8
Magnetic susceptibility (χ) -6.8×10⁻⁶ cm³/mol
Refractive index (nD) 1.412
Viscosity 20 mPa.s at 20°C
Dipole moment 2.44 D
Thermochemistry
Std molar entropy (S⦵298) entropy (S⦵298): 489.6 J·mol⁻¹·K⁻¹
Std enthalpy of formation (ΔfH⦵298) -477.8 kJ/mol
Std enthalpy of combustion (ΔcH⦵298) -8878 kJ/mol
Std molar entropy (S⦵298) 376.6 J·mol⁻¹·K⁻¹
Std enthalpy of formation (ΔfH⦵298) -471.8 kJ/mol
Std enthalpy of combustion (ΔcH⦵298) -9402 kJ/mol
Hazards
GHS labelling GHS02, GHS07, GHS09
Pictograms GHS02,GHS07
Signal word Danger
Precautionary statements P210, P220, P234, P235, P240, P241, P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P337+P313, P370+P378, P403+P235, P405, P501
NFPA 704 (fire diamond) 1-4-2-X
Flash point 50°C
Autoignition temperature 130 °C (266 °F)
Lethal dose or concentration LD50 Oral Rat 11300 mg/kg
LD50 (median dose) Rat oral LD50: 13,000 mg/kg
PEL (Permissible) There is no specific PEL (Permissible Exposure Limit) established for Tert-Butyl Peroxy-2-Ethylhexanoate (TBPEH) by OSHA.
REL (Recommended) 7 mg/m³
IDLH (Immediate danger) Unknown
GHS labelling GHS02, GHS07, GHS08
Pictograms GHS02,GHS07
Signal word Danger
Hazard statements H242, H302, H315, H317, H319, H332, H335
Precautionary statements P210, P220, P234, P280, P302+P352, P305+P351+P338, P311, P370+P378
NFPA 704 (fire diamond) 1-4-1-🔥
Flash point “> 80 °C”
Autoignition temperature 230 °C (446 °F)
Explosive limits Explosive limits: 1–7%
Lethal dose or concentration LD50 Oral Rat 9950 mg/kg
LD50 (median dose) LD50 (median dose): Oral, rat: 11,950 mg/kg
NIOSH SN2875000
PEL (Permissible) PEL (Permissible Exposure Limit) for Tert-Butyl Peroxy-2-Ethylhexanoate (TBPEH) is not specifically established by OSHA.
REL (Recommended) 7 mg/m³
IDLH (Immediate danger) Unknown
Related compounds
Related compounds tert-Butyl hydroperoxide
tert-Butyl peroxybenzoate
tert-Butyl peroxyacetate
tert-Butyl peroxyisobutyrate
Di-tert-butyl peroxide
Cumene hydroperoxide
Related compounds tert-Butyl peroxybenzoate
Methyl ethyl ketone peroxide
Dicumyl peroxide
Cumene hydroperoxide
tert-Butyl hydroperoxide
Pharmacology
ATC code D01AE19