2,5-Dimethyl-2,5-Bis (T-Butyl Peroxide) Hexyne-3 Enox Yne: A Commentary

Historical Development

Chemists started exploring peroxide compounds for their energetic reactivity and radical-producing power early in the 20th century. Years of tinkering under glass domes in university labs gave way to industrial interest, especially after polymers and plastics hit the market in the postwar period. Among the unique molecules discovered, 2,5-Dimethyl-2,5-Bis (T-Butyl Peroxide) Hexyne-3 Enox Yne wasn’t just another erratic peroxide – it emerged from those decades of trial and error with just enough stability to carry significance. This compound, sitting in patents and technical publications as something more than an academic curiosity, attracted researchers who wanted reliable, initiator-grade peroxides for tough polymerization reactions. A few old-timers recall the notorious hazards linked to earlier peroxides—their fierce reactivity made chemists keep their distance and stock their labs with extra safety shields. Careful improvements in purification, storage, and formulation have tamed much of that danger, making specialized molecules like this one both useful and a bit less intimidating.

Product Overview

Anyone working in industrial chemistry might recognize this molecule from its long-winded name or its shortened moniker, TBPH or DTBPH. The dual t-butyl peroxide tails, hanging from a sturdy alkyne backbone, offer a one-two punch for radical generation. Though you won’t find it on the shelf at a regular hardware store, polymer producers and specialty chemical suppliers keep it close for its high performance in challenging environments. The robust structure delivers standout thermal resistance, which broadens its reach for polymer cross-linking, elastomer curing, and composite manufacturing.

Physical & Chemical Properties

The first thing technicians notice about 2,5-Dimethyl-2,5-Bis (T-Butyl Peroxide) Hexyne-3 Enox Yne is its clear, slightly viscous liquid form, easing transfer and mixing compared to some crystalline or waxy alternatives. A faint odor comes with the territory—peroxides never seem to lose that sharp, slightly sweet scent, a reminder of latent energy. Boiling point crosses well over 150°C, giving operators plenty of leeway for thermal applications. Density sits conveniently close to water, so process integration doesn’t require exotic engineering tweaks. The molecule carries a hefty peroxide content, topping competitors for free radical output per dollar spent. Stability tests show it tolerates moderate storage temperatures, but folks in production keep it refrigerated or shielded from sunlight, respecting its reputation.

Technical Specifications & Labeling

Suppliers usually assign a purity of at least 98% for technical-grade TBPH, citing gas chromatography and titration results to keep buyers happy during audits. Color runs water-clear, with acid values and water content held in check through vacuum distillation and inert gas treatment. Standard packaging involves steel drums or amber glass bottles, double-sealed and tagged with UN identification numbers—DOT regulators rarely take peroxide spills lightly. Labeling comes loaded with pictograms for “oxidizer” and “explosive if heated,” a fair warning gleaned from real-world factory mishaps. Manufacturers supply batch-specific Certificates of Analysis, allowing engineers and compliance officers to match molecules on paper with the cells in their process spreadsheets.

Preparation Method

Making TBPH isn’t a casual exercise in chemical kitchen craft. It requires meticulous control over air, moisture, and temperature—one false step translates to runaway side reactions or diminished yield. Usually, the process kicks off with the alkyne precursor. Industrial reactors charge it with excess t-butyl hydroperoxide under a bassinet of chilled solvent and inert gas, letting selective catalysis drive peroxide addition across the target positions. Purification steps, often involving careful liquid-liquid extraction and vacuum distillation, help separate wanted product from tangles of side metabolites and unreacted starting material. Only experienced process chemists, well-versed in handling exothermic reactions, attempt scale-up to meet demand, with rigorous employee training at every step to minimize risk.

Chemical Reactions & Modifications

This compound found a niche for controlled release of free radicals during thermal decomposition, crucial for curing or cross-linking processes where clean splits and predictable polymer chains mean everything. Additives and modifiers piggyback off this base, using co-monomers and co-initiators to tweak reaction speed and byproduct profile. Chemists sometimes explore halogenation or further peroxide functionalization, crafting blends adapted for unique end-use applications. In glass fiber composites or rubber vulcanization, these chemical pathways become essential, giving parts longevity in high-stress settings like aerospace and automotive plants.

Synonyms & Product Names

Makers and marketers never miss a chance to rename specialty chemicals for clarity or brand identity. 2,5-Dimethyl-2,5-Bis (T-Butyl Peroxide) Hexyne-3 Enox Yne also appears in supply catalogs as TBPH, DTBPH, and sometimes t-Butylperoxy-Hexyne. A few niche suppliers mark it under proprietary trade names, hoping to stand out in a crowded technical portfolio. Anyone tasked with procurement quickly memorizes these abbreviations, since regulatory filings, import documents, and safety sheets rarely stick with the mouthful of IUPAC nomenclature.

Safety & Operational Standards

Safety officers in chemical plants treat all organic peroxides with tight protocols, and this compound is no exception. Engineers restrict open flames and static discharge sources around handling zones, while storing drums in temperature- and humidity-controlled bunkers far from oxidizable substances. Spill kits, face shields, and chemical-resistant gloves join the standard kit, with detailed SOPs outlining clean-up and emergency measures. Training drills stress the importance of ventilation and proper container labeling, a lesson learned over generations of industrial accidents. Emergency response teams keep calcium carbonate, sand, and even special solvents on hand for neutralization and containment, making sure reactive mishaps don’t escalate.

Application Area

Applications extend beyond textbook polymerization experiments. In plastics and elastomers, this compound ensures robust cross-linked products able to survive mechanical stress, high temperatures, and chemical attack. It lands in the mold shops of tire factories, foam insulation plants, and composite laboratories designing next-generation lightweight materials. Small additions of TBPH tune the properties of thermosets, user-friendly in both batch and continuous processes. Electronics manufacturers harness its benefits too, improving insulating resins and heat-resistant coatings, especially where performance means the difference between a failed circuit and a million-dollar payout. In my own experience running a polymer pilot line, switching to TBPH jumpstarted productivity, halving downtime once spent on less predictable triggers.

Research & Development

R&D labs keep pushing the boundaries of TBPH chemistry. Teams work with magnesium catalysts or green oxidants to cut environmental impact and boost yields, nudging the product toward cleaner credentials. Academic researchers publish papers probing structure-activity relationships, hoping for initiators that last longer on the shelf or kick off reactions at even lower temperatures. Multinational manufacturers invest heavy in process intensification, automation, and flow chemistry setups, hunting for safer, cheaper routes to the same high-purity end product. Regulatory shifts, such as Europe’s REACH and global GHS labeling updates, force every innovator to keep dossiers up-to-date and invest in ongoing toxicological screenings.

Toxicity Research

No one shrugs off peroxide hazards, and TBPH comes with the usual risks: inhalation or skin contact leads to irritation, and accidental ingestion spells acute toxicity. Occupational safety studies show that well-ventilated environments, gloves, and goggles keep most risks in check, and companies invest in real-time gas detection and air exchange systems to avoid invisible buildups. Long-term animal studies still run their course, but early results hint at manageable acute toxicity; cancer and chronic disease links stay unproven in short-term analysis. Waste handling follows national hazardous disposal guidelines—ignoring them only courts regulatory pain and community worry. Workers deserve clear training and management’s investment in best-available protective technology, as nothing spoils a shift faster than a peroxide accident.

Future Prospects

Looking down the road, 2,5-Dimethyl-2,5-Bis (T-Butyl Peroxide) Hexyne-3 Enox Yne stands poised for long-term relevance in advanced materials science. As industries race for stronger, lighter, and more sustainable composites, reliable initiators stay in high demand. Research into alternative synthesis routes could cut cost and lessen environmental impact, making the molecule friendlier to both workers and nearby communities. The push for electric vehicles, renewable energy, and improved personal electronics will keep TBPH in R&D shopping carts for years. Staying ahead means blending a solid technical understanding with a relentless focus on safety, sustainability, and evolving industrial needs. Those who master this balancing act will shape the next leap for polymer chemistry and high-performance manufacturing.



What is 2,5-Dimethyl-2,5-Bis (T-Butyl Peroxide) Hexyne-3 Enox Yne used for?

The Inside Scoop on a Chemical Powerhouse

I’ve spent years working with polymer producers, tuning the recipe so cables don’t melt, pipes hold up in winter, and car dashboards last a decade. One piece many folks outside the chemical industry rarely think about is the initiator—these are compounds that kick off the process of building plastics at the molecular level. 2,5-Dimethyl-2,5-Bis (T-Butyl Peroxide) Hexyne-3 Enox Yne falls right into this spot. Think of it as the spark plug for forming plastics that carry electricity, withstand impact, or keep drinks fresh in a bottle.

Why Manufacturers Keep Reaching for This Compound

Old-school methods used peroxides because they break apart under heat, spinning off radicals that string small molecules into long, sturdy chains. This specific peroxide brings extra benefits mainly through stability. The big, bulky “tert-butyl” arms give it a push so it doesn’t react too soon, even if it sits in a warehouse for weeks. Workers love this trait: the compound stays safe during transport, on the shelf, and only “wakes up” once it’s in the right conditions inside a reactor. The hexynyl backbone makes this even more predictable, cutting down on fusible errors during heavy manufacturing runs.

Boosting Output, Saving Energy

Factories need to hit production goals without blowing up costs or blowing up the plant. This peroxide handles high-pressure and high-temperature environments—like those found in low-density polyethylene (LDPE) plants—without decomposing the moment someone turns up the heat. Operators can dial in the exact moment they want the reaction to fire off. Fewer breakdowns means less downtime, and plant managers don’t have to spend extra on cooling systems or specialty storage for shipments. Over a year, these savings multiply.

The Link to Everyday Products

If you plug in an extension cord, tap a water pipe, or buy milk in a durable bottle, this compound probably helped shape that product. Safe initiators lower residual chemicals in the final plastic, making food packaging a safer bet. In my experience, the switch to more reliable initiators—like this one—helped consumer goods companies certify their bottles as BPA-free or compliant with food safety standards. It keeps plastics strong enough to avoid splits in the cold, too, which matters a lot when plumbing freezes up in a winter storm.

Risks, Regulation, and Responsible Handling

There’s risk with any peroxide—improper use causes runaway reactions, tunnel fires, or health hazards. Good operators wear proper gear, monitor temperatures closely, and prepare emergency shutdowns just in case. Regulatory bodies watch sales closely. The supply chain for these peroxides focuses first on proper labeling, tracked deliveries, and staff training. Trust grows in the end product if safety procedures stay tight. Reputable suppliers regularly run audits and set up electronic logs to trace all production and delivery steps.

Pushing for Greener Chemistry

Chemical firms keep looking for initiators that cut down on byproducts and reduce their environmental impact. Supply chains can’t absorb many more chemicals that generate persistent waste or cross-contaminate waterways. This particular compound doesn’t solve every environmental challenge, but its stability shortens cleanup times, slashes fire risk, and gives regulators less worry about accidents in shipment or storage. As more sectors demand higher safety standards, demand for predictable, well-studied initiators like 2,5-Dimethyl-2,5-Bis (T-Butyl Peroxide) Hexyne-3 Enox Yne keeps climbing.

What are the storage and handling precautions for this product?

Why Care Matters

Experience teaches that ignoring storage guidelines for any product brings hassle, financial loss, and sometimes safety risks. In my previous role managing a small warehouse, I learned the hard way after a shipment of chemicals suffered moisture damage from sloppy handling and poor labeling. When products break down, nobody’s happy—not customers, not employees, and certainly not regulators. It’s always cheaper and easier to get storage right from the beginning.

Keep It Dry and Cool

Most products—especially chemicals or sensitive goods—hold up best where humidity stays low and temperatures stay steady. Direct exposure to sunlight dries things out, triggers unwanted reactions, or weakens packaging. One summer a pallet of cleaning supply bottles warped because we stacked them in sunlight near the loading dock door. Nobody cared about temperature charts until half the stock melted and became unsellable. Storing away from windows and heat sources protects quality and keeps insurance claims at bay.

Ventilation and Labeling

Airflow makes a big difference, especially for anything that emits fumes or breaks down with time. I noticed headaches from harsh odors in closed rooms, just as product labels warned. Well-marked storage areas—color-coded and with clear warning signs—make it easy for anyone to notice and handle hazards. Even with a tight budget, investing in good signage and readable labels prevented mix-ups and made every safety audit less stressful.

Separating Incompatible Materials

Mixing products that don’t play nice together turns small mistakes into disasters. My old workplace posted a chart so nobody stored acids near bases, or flammables near oxidizers. Once someone tried to squeeze bleach beside ammonia for “efficiency”—cleaning up that mess taught us all a lesson. People who sort storage based on chemical type and risk level avoid emergencies and keep the air clear of noxious fumes.

Safe Transfer and Personal Protection

Decanting, pouring, or repackaging opens the door to spills and accidents. I always used gloves and goggles, even if the product seemed harmless, because you don’t get a second chance with spills. It’s surprising how many slips happen just because someone thought a funnel wasn’t important. Keeping PPE in stock and insisting on its use prevents burns, rashes, and emergency room visits. Regular training sessions help—running through common scenarios sticks far better than dry manuals.

Emergency Planning Makes a Difference

You can’t predict every accident, but knowing where the eyewash station sits or having a spill kit nearby keeps trouble small. When a storage drum sprung a leak one year, our supervisor’s quick response using an absorbent kit saved us a ton of paperwork and trouble from hazardous waste regulators. Having up-to-date safety data sheets, contact numbers, and first-aid kits close changes the outcome when every minute matters.

Rotation and Inventory Checks

Products—especially chemicals and food—lose potency with time. I learned to rotate stock, putting older goods at the front and marking opening dates. Skipping this step just leads to wasted money and discarded expired stock. Frequent inventory checks catch issues before they snowball. Technology helps, but a hands-on walkthrough picks up what barcodes miss: sticky caps, swelling bottles, or packaging that’s off. People trust what they see with their own eyes.

Simple Steps, Lasting Value

Following these precautions is about more than avoiding fines or failed inspections. It builds trust with customers, keeps workers safe, and saves money that would otherwise be thrown away fixing preventable mistakes. From my years working in logistics, every ounce of effort spent storing and handling products right paid off in returns and peace of mind.

Is the product hazardous or does it have any safety concerns?

Real Risks, Not Just Small Print

Safety is the first thing I look for before buying anything. My kitchen shelves used to have cleaning sprays with bright warning symbols, and I remember how easy it was to ignore them. Until someone gets a headache or starts coughing because they weren’t careful, those warnings feel like background noise. It’s easy to tune out and trust the packaging, or believe the store wouldn’t sell something dangerous. A product’s price or popularity doesn’t always reflect safety.

The Consumer Product Safety Commission estimates that emergency rooms treat millions each year for injuries tied to everyday products. Burn ointments for a careless touch of a curling iron, or antihistamines after using a scented candle, aren’t rare. Children love color and taste, so a detergent pod can look like candy. One lapse in attention can mean a trip to the ER. My neighbor almost learned the hard way after their toddler swallowed a small magnet.

What Makes Something Dangerous?

Most hazards fall into a few buckets. There are chemicals that irritate skin, eyes, or lungs. Some products pose a fire, explosion, or burn risk. Small parts on toys pose choking dangers. Electric appliances, even a phone charger, can start a fire if built with poor materials. The FDA recently recalled several goods for containing harmful substances. Not all risks look obvious. A supplement with illegal stimulants or heavy metals might slip through customs, yet many people assume health products are always safe.

What People Miss

Customers trust the rules—labels and regulations—will catch dangers before shelves get stocked. That trust doesn’t always match reality. Sharp-eyed experts keep finding things overlooked by rushed inspections or loose enforcement.

Many products sold online aren’t closely watched. I once ordered a phone charger online for half the store price, ignoring bad reviews. That charger melted after a week, almost scorching the counter. Just because a box crossed a border doesn’t mean it was ever tested.

Recycling, reusing, or repurposing products can introduce new risks. An old baby crib passed along between friends might not meet modern standards. A used helmet could have invisible cracks.

Solution: Turn Awareness into Action

It helps to check for recalls on official government sites. Looking for signs like tamper-proof seals, strong warnings, and ingredient lists builds peace of mind. Reading reviews and checking the source gives more clues than marketing ever will. Brands that welcome accountability—posting third-party test results and making it easy to report safety problems—earn my trust.

People need clear, plain information. Warning labels should look like part of the design, not an afterthought. Photos and plain language work better than technical charts. Schools could run workshops about the most common household dangers. Parents, teachers, and community leaders can share stories to make safety habits second nature.

Staying Safe Means Asking Questions

Curiosity often saves the day. Before buying, I search for product recalls and accidents—sometimes it means scrolling through a few news stories or scanning complaint pages. Simple questions—where this product came from, who stands behind it, how it’s supposed to be used—make a big difference. It’s better to pause before a purchase than regret a visit to the doctor later.

What is the shelf life or stability of this chemical?

Stability Dictates Trust in Science and Everyday Use

I once walked into a lab storeroom, cracked open a bottle of an old reagent, and caught a stench I'd never forget. Labels said “good for five years,” but reality proved labels work only as well as the storage, temperature, and the maker’s integrity. Shelf life shapes everything from the trust a scientist puts into an experiment to whether a batch of medicine heals or harms. In the world beyond the lab, chemicals run our agriculture, our cleaners, our water purification. Whether a bottle holds up after years on a shelf decides the safety and quality of what we use every day.

Environmental Factors Change the Game

Sunlight, humidity, and air gnaw at stability every hour. A chemical that sits perfect at 5°C warps at 25°C. Think about glacial acetic acid – toss it onto a shelf under flickering summer AC, and in four months, you might spot odd cloudiness. Researchers in 2017 documented how vitamin C powder stored in a humid environment lost potency in weeks, spoiling nutrition in supplements long before their “best by” dates. Fluctuations don’t just tweak performance; they can turn benign substances into outright hazards. Sodium hypochlorite, a common disinfectant, decomposes to form salts and oxygen – in hot storage, the solution gets weaker and less reliable, risking contamination in settings needing sterility.

Manufacturing and Packaging Hold the Key

Not all production lines create equal stability. Small shifts in purity or the presence of trace metals in containers spark early degradation. Manufacturers who skip tight controls leave buyers guessing about the true lifespan. In an experiment documented by the US Pharmacopeia, certain plastic bottles leached small molecules into stored chemicals, reducing strength and—at worst—changing reaction profiles. Plenty of labs and industry pros push for updated packaging and clearer supply chain transparency, since a fancy stability profile means little if shipping adds weeks under heat lamps.

Responsibility on the User’s End

Ignoring shelf life is tempting until a failed assay or a spoiled batch makes the consequences impossible to ignore. At home, that old pool chlorine or the faded cleaning bottle under the sink can spoil or even create harmful fumes. In industry, mistakes stack up faster: expired reagents skew test results, eroding trust in published data, wasting time, and burning budgets. Regular audits, labeling with clear expiration dates, and digital inventory tracking help, but people also forget or cut corners under pressure. Relying on memory instead of regular checks invites costly errors.

Can Longer Shelf Life Be Engineered?

Material scientists keep hunting for more robust additives or new formulations that can stand up to rough storage. Some companies shift to using opaque, airtight containers and recommend cool storage by default. Others invest in digital sensors that send out alerts as conditions change. These moves buy users more certainty and prevent losses, but they drive up costs.

Knowing Isn’t Enough Without Accountability

The best research and manufacturing practices only work if they’re shared, updated, and enforced. Regulators, manufacturers, and users all hold pieces of this puzzle. If any one group slacks off, people pay with money, trust, or safety. Updating supply chain records, using barcodes, and training staff to check for telltale signs of spoilage—all these steps turn knowledge into reliability.

How should accidental exposure or spills be managed?

Spills Happen: Quick Action Matters

Every workplace handles something risky at some point, whether that’s a cleaning product, lab chemical, or heavy oil in a shop. The thing is—no system works perfectly forever. Nobody likes to admit it, but spills catch people off guard. In my early days at a warehouse, a drum of solvent tipped over, catching our crew in the middle of restocking. Panic gets you nowhere. Looking back, the best results always followed real training, easy-to-find supplies, and people sticking around to help instead of running away to avoid blame.

Health Takes Top Priority

You can replace product and patch floors. Lungs and skin recover much slower. Fast recognition of what spilled decides how serious the outcome will be. If powder clouds or chemical pools, everyone in the area needs to know what that stuff is and how to avoid breathing, touching, or tracking it to other spots. I’ve watched coworkers read labels with shaky hands. Labels don’t lie: if a warning says flush with water or get outside, trust it before any manager gets on site. It’s a lot easier to rinse out an eye right away than fix lasting damage later.

Knowledge: More Valuable Than Any Toolkit

The best cleanups start long before a cap pops loose or a bottle shatters. Training sticks—the kind where you practice, not just sign a paper. I’ve seen drills done right, with people learning which absorbent beats which liquid, how to use neutralizers, and why you keep a fresh set of gloves and goggles handy. The companies that take shortcuts on this stuff see more people get hurt, and cleanup takes twice as long. Honest conversations help. No one should feel embarrassed to ask what to do. If the only instructions sit locked away in an office, folks improvise—and create bigger messes.

Tools: No Substitute for Thinking Ahead

Once a leak starts, the clock ticks. Absorbents, sealants, and plenty of rags matter, but someone needs to know where those materials live, and stacks of supplies don’t do much sitting hidden in a back room. Every step counts: pulling the right gear, blocking off the area, keeping untrained staff away. I remember those moments where someone tried to sweep a spill under the rug—literally with sawdust, hoping nobody would notice. It never worked. Good practice pairs sturdy tools with steady nerves.

Reporting Closes the Loop

Nobody enjoys filling out reports, but skipping this step breeds future disasters. The record creates learning, shapes new training, and sometimes brings updated gear or processes. After our warehouse incident, we ended up with dedicated spill kits at every door, not just the main storage room. It saved minutes the next time—and kept a small leak from spreading. Workplace culture shifts when people see follow-through. Accountability supports action.

The Community Formula

People make the difference. Encouraging a work crew to speak up, practice together, and follow through protects everyone—whether in a school lab, hospital, or truck stop. No one plans for a spill, but handling one well proves a group’s grit and responsibility. Strong training and honest follow-up matter far more than flashy slogans about safety.

Stepping Up: A Routine, Not an Exception

Responding to spills never feels glamorous, but it’s one of those jobs where preparation beats just crossing your fingers. Places that treat every small leak like a lesson tend to avoid the big emergencies that make headlines. Hard-earned experience says: people make mistakes. Cleaning up thoughtfully creates a safer day for everyone.

2,5-Dimethyl-2,5-Bis (T-Butyl Peroxide) Hexyne-3 Enox Yne
Names
Preferred IUPAC name 2,5-dimethyl-2,5-bis(tert-butylperoxy)hexa-3-yne
Other names 2,5-Dimethyl-2,5-bis(tert-butylperoxy)hex-3-yne
2,5-Dimethyl-2,5-di(tert-butylperoxy)hex-3-yne
Bis(tert-butylperoxy)isopropylacetylene
3-Hexyne, 2,5-dimethyl-2,5-bis(1,1-dimethylethylperoxy)-
Pronunciation /ˈtuː,faɪv daɪˈmɛθəl tuː,faɪv bɪs tɜrˈʌrˌbjuːtəl pərˈɑksˌaɪd ˈhɛksaɪn θri ɛnˈɒksiˌaɪn/
Preferred IUPAC name 2,5-dimethyl-2,5-bis(tert-butylperoxy)hexa-3-yne
Other names 2,5-Dimethyl-2,5-bis(tert-butylperoxy)hexyne-3
Dimethylbis(tert-butylperoxy)hexyne
Hexyne, 2,5-dimethyl-2,5-bis(1,1-dimethylethylperoxy)-
Perkadox 16
Trigonox 145
Pronunciation /tuː,faɪv daɪˈmɛθ.əl tuː,faɪv bɪs tɜːrˈbɜː.tɪl pərˈɒk.saɪd hekˈsaɪn θriː ˈɛn.ɒks ˈwaɪn/
Identifiers
CAS Number 13583-32-3
Beilstein Reference 3408733
ChEBI CHEBI:30268
ChEMBL CHEMBL1507808
ChemSpider 110945
DrugBank DB14024
ECHA InfoCard ECHA InfoCard: 100.121.190
EC Number 201-279-3
Gmelin Reference 77167
KEGG C19691
MeSH C014222
PubChem CID 67818
RTECS number MU0175000
UNII 3U14NG2ZI8
UN number UN2389
CompTox Dashboard (EPA) DTXSID4061569
CAS Number 78-63-7
Beilstein Reference 695675
ChEBI CHEBI:31745
ChEMBL CHEMBL183147
ChemSpider 20919791
DrugBank DB13866
ECHA InfoCard 03f4d2a9-452f-4b77-86c8-24e90228e012
EC Number 201-279-3
Gmelin Reference 106058
KEGG C11849
MeSH D000070246
PubChem CID 108725
RTECS number KI5775000
UNII G51FBB971C
UN number UN3111
CompTox Dashboard (EPA) DTXSID2040525
Properties
Chemical formula C16H30O4
Molar mass 346.5 g/mol
Appearance Colorless liquid
Odor Odorless
Density 0.930 g/mL at 25 °C
Solubility in water Insoluble
log P 3.94
Vapor pressure 0.05 mmHg (20°C)
Basicity (pKb) pKb ≈ 4.5
Refractive index (nD) 1.4380
Viscosity 15 mPa·s (25 °C)
Dipole moment 4.05 D
Chemical formula C16H30O4
Molar mass 322.48 g/mol
Appearance Colorless liquid
Odor Odorless
Density 0.89 g/cm3
Solubility in water insoluble
log P 3.74
Vapor pressure 0.13 hPa (20 °C)
Basicity (pKb) pKb: 15.2
Magnetic susceptibility (χ) NA
Refractive index (nD) 1.4200
Viscosity Viscosity: 13 cP (20°C)
Dipole moment 2.72 D
Thermochemistry
Std molar entropy (S⦵298) 642.7 J·mol⁻¹·K⁻¹
Std enthalpy of formation (ΔfH⦵298) -355.9 kJ/mol
Std enthalpy of combustion (ΔcH⦵298) -1748 kJ/mol
Std molar entropy (S⦵298) 492.5 J·mol⁻¹·K⁻¹
Std enthalpy of formation (ΔfH⦵298) –393.4 kJ/mol
Std enthalpy of combustion (ΔcH⦵298) -1792 kJ·mol⁻¹
Pharmacology
ATC code No ATC code
Hazards
GHS labelling GHS02, GHS07, GHS09
Pictograms GHS02, GHS07, GHS09
Signal word Danger
Hazard statements H242,H302,H315,H319,H335
Precautionary statements P210, P220, P234, P261, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P337+P313, P370+P378, P411+P235, P420, P501
NFPA 704 (fire diamond) 2,4,4,O
Flash point 6 °C (43 °F) (closed cup)
Autoignition temperature 210 °C (410 °F; 483 K)
Lethal dose or concentration LD50: >5000 mg/kg (rat, oral)
LD50 (median dose) LD50 (median dose): **>3.16 g/kg (rat, oral)**
PEL (Permissible) Not Established
REL (Recommended) 0.2 ppm (1.5 mg/m³)
IDLH (Immediate danger) Unknown
GHS labelling GHS02,GHS05,GHS07,GHS09
Pictograms GHS02, GHS07, GHS09
Signal word Danger
Hazard statements H242, H302, H314, H332, H335
Precautionary statements P210, P220, P234, P235, P240, P241, P242, P243, P261, P262, P264, P270, P271, P272, P273, P280, P285, P301+P310, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P312, P314, P321, P330, P337+P313, P362+P364, P370+P378, P403+P235, P405, P501
NFPA 704 (fire diamond) Health: 2, Flammability: 4, Instability: 4, Special: OX
Flash point 20 °C (68 °F) (closed cup)
Autoignition temperature 210 °C (410 °F)
Lethal dose or concentration Lethal dose or concentration (LD50) for 2,5-Dimethyl-2,5-Bis (T-Butyl Peroxide) Hexyne-3 Enox Yne: "Oral rat LD50: 450 mg/kg
LD50 (median dose) LD50 (median dose): **795 mg/kg (oral, rat)**
PEL (Permissible) Not established
REL (Recommended) 0.05 ppm
IDLH (Immediate danger) Unknown
Related compounds
Related compounds Acetylene
Hexyne
2,5-Dimethyl-2,5-hexanediol
Tert-Butyl hydroperoxide
Di-tert-butyl peroxide
2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane
Related compounds Tert-butyl hydroperoxide
Di-tert-butyl peroxide
2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane
Acetylene
Hexyne
Bis(tert-butylperoxy) compounds