Di-Tert-Butyl Peroxide (DTBP), cum formula chemica (CH₃)₃C-O-O-C(CH₃)₃ et CAS numero 110-05-4, peroxidum dialkylum late adhibitum est ut initiator liberorum radicalium et summus temperatus transmissionis agentis. Est sine colore ad liquidum luteum cum miti, distinctivo odore, hypotheticum pondus 146,23 g/mol, et dimidia vita 10 horarum circiter 126°C — unum e peroxidis organicis stabilissimis peroxis commercium in promptu faciens.
Dissimiles diacyl peroxides vel peroxyestria, DTBP in radicalia tert-butoxy pure corrumpit, ac tandem acetona et methana, nullas productas acidicas producens. Haec profile dissolutio munda facit eam maxime pretiosum in processibus ubi residua acorem degradat qualitatem vel apparatum exedunt.
Global postulatio pro peroxidis organicis — quarum DTBP segmentum clavis est — exceditur 350,000 millia talentorum metrica per annum ut recentes opiniones, aucta processuum polymerorum, nutrimentorum additivorum et specialitatis chemicae synthesis.
Key Physica et Chemical Properties
Intelligere proprietates DTBP essentiales est ad eligendam illam super initiatores modo et ad tractationem tutam in ambitus productionis.
| Property | Precium |
| CAS Number | 110-05-4 |
| Formulae hypotheticae | C₈H₁₈O₂ |
| M. Pondus | 146.23 g/mol |
| Aspectus | Hyalina ad flavum liquorem |
| fervens | 109–111°C |
| Flash Point | 18°C (poculum clausum) |
| Density | ~0.794 g/cm³ at 20°C |
| Auto-acceleratio Decomposition Temp (SADT) | ~80°C (bulk) |
| Active Oxygen Content | 10.95% |
| Medium-Vita apud CXXX°C | ~ 6.6 horae |
Table 1: Clavis physicae proprietatum Di-Tert-Butyl Peroxide (DTBP)
DTBP est miscible cum maxime organicum menstrua et in aqua fere insolubilis, quae usum suum faciliorem facit ut commodata gerens vel mixta in portantibus hydrocarbon. Relative humilis activum oxygeni contentum (10,95%) comparatum cum peroxyestribus consequitur in fluxu radicali leniori, moderatior — commodum in formulis polymerorum sensitivorum ubi immoderata transversio defectus causaret.
Primae Industrial Applications DTBP
Polymerus Crosslinking et Vulcanization
DTBP est extensively employed as a crosslinking agentis polyethylene (PE), ethylene-propylene fricatores (EPR/EPDM), et silicone elastomers . In velitatione filum et funem, polyethylene (XLPE) nexum efficit ut signanter emendavit resistentiam caloris, vires mechanicas, et diuturnum tempus electricae operationis comparatae ad UNcrossininctum PE. Typical usus gradus range ex 1-3 phr (partes per centum resinae) temperaturis supra 160°C processit ut plenam compositionem et generationem radicalem curaret.
In silicone vulcanizatione Flexilis, DTBP praeponitur articulis diaphanis vel levibus coloratis, quia eius dissolutio nullas maculas producit — limitationem systematum peroxidei alicuius benzoyl substructi.
Cibus et Lubricant Additive (Cetane Improver)
Una quamprimum-crescentis applicationis locis pro DTBP est ut a cellae numerus melior pellentesque cibus . In facies rates of 500–2,000 ppm , DTBP cellae numerum Diesel per 3-8 puncta suscitare potest, efficientiam combustionem emendare, moram ignitionis minuere, emissiones frigidae initium summittere. Haec applicatio renovatam attentionem assecutus est ut expolitiones componunt rationes superiorum partium cellae inferioris (exampla, hydrotracta olea vegetabilium, distillata Fischer-Tropsch) in piscinam pellentesquealem ut obviam humili sulpure et renouabilibus mandatorum fomite.
Nitras 2-ethylhexyl comparatus (2-EHN), DTBP nitrogen nullum continet, quod commodum praebet in profiles emissione - praesertim pertinet in mercatis cum normis severis NOx.
Polymerization Initiator in Proprium Resins
Ob summam compositionem temperatus DTBP est initium electionis propter summus temperatus mole et solutione polymerizations de styrene, acrylate, et acetate vinyllae, praesertim ubi initiatores humilis temperatus praemature dissolveret in componendo vel dissolvendo processus. Solet etiam inchoare copolymerizationem ethyleni sub alta pressione in LDPE autoclave reactoria.
Synthesis chemica intermedia
In fabricatione chemica et pharmaceutica subtiliter, DTBP est fons radicalis tert-butoxyi pro profectae functionis selectivae C-H. Adhibetur in synthesi esters tert-butyl, motus oxidative copulationis, et sicut mitis oxidantis in chemia-catalysis crucis-coniunctio — inter C-N et C-O formatio vinculi sub catalysi transitoriis metallicis.
DTBP vs. Other Organic Peroxide Initiatores: Comparativa Electio Guide
Peroxide principiatorem eligens requirit conpensationem compositionis temperaturae, efficientiam radicalem, figuram productam et sumptus. Infra quomodo DTBP comparat cum altero usu communi:
| Peroxide | X-hr Half-Vita Temp | Byproducts | Typical Usus |
| DTBP | ~126°C | Acetonum, methanum (non-acidicum) | XLPE, silicone Flexilis, cellae melioris |
| Dicumyl Peroxide (DCP) | ~117°C | Acetophenone, cumyl alcohol (odor) | PE / rubber crosslinking |
| Benzoyl Peroxide (BPO) | ~73°C | Acidum benzoicum (acidicum, inficiens) | Acrylate polymerization, adhesiva |
| TBHP (tert-Butyl hydroperoxidum) | ~171°C | tert-Butanol (aquarum solutum) | Oxidatio catalysis, emulsio polymerization |
Mensa 2: Comparatio DTBP cum initiatoribus peroxide organicis communibus per profile scelerisque et applicatione apta
DTBP commodum super DCP iacet in suo absentia mali odoris corrumpuntur products - criticus factor in cibo-contactus vel productio medici gradus elastomer. Contra BPO, eius altior scelerisque stabilitas in processu dissoluto supra CL°C usum dat sine praematura activatione in componendo.
Repono, Tractatio, et Regulae Considerationes
DTBP est classified as a flammabilis liquor (UN 2102, Classis 3). sub Institutis internationalibus onerariis, cum punctum 18°C circiter. Quamvis scelerisque stabilitas relative alta inter peroxides organicas habeat, reponenda est secundum statuta protocolla salutis;
- Reponunt infra 40°C in locis bene ventilatis a fontibus caloris, flammis apertis et materiae incompossibilibus (agentibus reducendis, acida valida)
- Vasa obsignata servanda sunt ne evaporatio (punctum fervens ~ 110°C; vapor pressurae significantes temperaturis ambientibus)
- DTBP debet non condi oxidizers aut chlorinated menstrua quae corrumpi potest catalyze
- Mole quantitates antisticas terrestres requirunt in translatione propter conductivity humilis electrica liquidi
Sub regulatorio sub DTBP relatus est SPATIUM (EC, No. 202-679-4) et in majoribus inventariis nationalibus recensentur inter Sinarum IECSC, inventarium US TSCA et EU'S EINECS. In praesenti non ponitur substantia summae sollicitudinis (SVHC), quamquam documenta SDS GHS in omnibus iurisdictionibus requisitis parere debet.
In medicamentis cibariorum polymerorum (exempli gratia, XLPE fistulae aquae potabilis), processus comprobare debet obsequium applicabilium migrationis limitum sub FDA 21 CFR vel EU Ordinatione X/2011, ut residua compositionis productorum — praesertim acetone — migrationi probati subesse possunt.
Frequenter Interrogata de Di-Tert-Butyl Peroxide
- Quid est principalis usus Di-Tert-Butyl Peroxide?
DTBP est primarily used as a free-radical initiator for crosslinking polyethylene and rubber, as a high-temperature polymerization catalyst, and as a cetane number improver in diesel fuel formulations.
- Estne Di-Tert-Butyl Peroxide tutum tractare?
DTBP est a flammable liquid that requires standard peroxide handling precautions — proper ventilation, grounding during transfer, and storage below 40°C away from ignition sources. It has a relatively favorable safety profile compared to lower-temperature peroxides, as it does not detonate under normal conditions and is classified as a non-self-reactive substance in bulk transport.
- Quae compositione products non DTBP producit?
In compositione scelerisque, DTBP radicalis tert-butoxy dat, quod adhuc fragmentum in acetona et yl radicalia. Producti volatiles novissimi sunt acetoni et methani, tam non acidici quam non-maculati, quod in multis applicationibus polymerorum prodest.
- Quid est reposita repono temperatura DTBP?
DTBP debet be stored below 40°C in a cool, well-ventilated area. Unlike some organic peroxides that require refrigerated storage, DTBP is stable at ambient temperatures provided it is kept away from heat sources and incompatible chemicals.