Alkylperoxide

BIPB Di(tert-butylperoxyisopropyl)benzol

CAS 25155-25-3 · Hersteller und Lieferant organischer Peroxide in China

CAS 25155-25-3UN 3106
CAS-Nr.
25155-25-3
Formel
C₂₀H₃₄O₄
Mol.-Gewicht
338.5
UN-Nr.
3106
BIPB Di(tert-butylperoxyisopropyl)benzol

Physikalische Eigenschaften

AussehenWhite powder or flakes
Aktiver Sauerstoff9.45%
SADT (Selbstbeschleunigungstemperatur)80℃
Gefahrentemperatur75℃
Lagertemperatur--/15 ℃

Halbwertzeit-Daten (Zerfallstemperatur / Starttemperatur)

0.1 hour156℃
1 hour134℃
10 hours115℃

Zerfallsprodukte: tert-butyl alcohol, diisopropylbenzene, acetylbiphenyl, acetyl-2-hydroxyisopropylbenzene, methane, acetone

Aliases & Synonyms

Also written as
Bis(tert-butylperoxyisopropyl)benzene
Other names
1,4-bis(2-tert-butylperoxypropan-2-yl)benzene · alpha,alpha'-bis(tert-butylperoxy)-p-diisopropylbenzene · BIPB
Also supplied under these brand names*
Perkadox 14 · Luperox F · Peroximon F 40(Commercial Reference)*

* Brand names are trademarks of their respective owners and are referenced for identification purposes only. LAAP products are not manufactured or endorsed by these companies.

Technischer Auswahlleitfaden

Produktüberblick

Di(tert-butylperoxyisopropyl)benzene (BIPB, CAS 25155-25-3) is a bifunctional dialkyl peroxide with 9.45% active oxygen and a 10-hour half-life temperature of 115°C. Because both peroxide groups are attached to the same benzene ring, crosslinking proceeds through a single, thermally stable aromatic backbone — which is why BIPB has become the standard replacement for DCP in odour-sensitive rubber and polyolefin compounds.

Halbwertszeit- und Temperaturprofil

With a 10-hour half-life of 115℃, BIPB is designed for cure temperatures between 150°C and 180°C. The 1-hour value of 134℃ and the 0.1-hour value of 156℃ show how quickly the decomposition accelerates once the process passes 150°C — the practical implication is that residence time, not peak temperature, controls the degree of crosslinking. In continuous vulcanization (CV) lines for cable, BIPB is normally run in the 170-200°C zone; in compression moulding of EVA foam, the press temperature is set 5-10°C below the CV line to compensate for the longer dwell.

Auswahl innerhalb derselben Produktfamilie

The BIPB/DCP choice is the most common decision in this family. DCP (CAS 80-43-3) is cheaper and has a very similar 10-hour half-life (117°C), but it decomposes to acetophenone, which carries a strong odour and is the usual cause of failed sensory tests. BIPB's decomposition products — tert-butyl alcohol and diisopropylbenzene — are essentially odourless, so BIPB is preferred for EPDM weatherstrip, HTV silicone, food-contact rubber and interior automotive parts. Against BPDH (CAS 78-63-7, 128°C), BIPB is the lower-temperature option; against DTAP (CAS 10508-09-5, 108°C), BIPB is the higher-temperature option.

Qualität, REACH & Dokumentation

Standard BIPB grades are ≥96% active with an activation energy of 152.69 kJ/mole. Typical controls are assay, active oxygen, appearance (white powder or flakes) and melting behaviour. Each batch ships with a CoA; REACH-compliant SDS and a TDS carrying the half-life table and recommended dosages are available on request.

Verpackung, MOQ & Lieferzeit

Standard packing is 20 kg corrugated boxes; custom sizes are available. SADT is 80°C and the recommended storage temperature is below 15°C, so product should be kept out of direct sunlight and away from heat sources. Minimum order quantity starts at 25 kg, stock grades ship in 7-14 days, and quotations are returned within 24 hours.

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