Tert-Butyl Peroxybenzoate TBPB CAS 614-45-9

Tert-Butyl peroxybenzoate TBPB CAS 614-45-9

Description

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CAS: 614-45-9

Synonyms: Tert-Butyl peroxybenzoate,TBPB

Einecs: 210-382-2

Molecular Formula: C11H14O3

Grade: 99.0%

Package: 25kg/drum or as required

Tert-Butyl peroxybenzoate TBPB CAS 614-45-9 is Yellowish, mobile liquid, consisting of technically pure tert.Butylperoxy benzoate. This aromatic perester is used as an initiator (radical source) in the polymerization of monomers, e.g. ethylene, styrene, methacrylates.

Specification:

Appearance	yellowish liquid
Assay	99.0% w/w min
Peroxide content	ca. 99 % w/w
Active oxygen	ca. 8.16 % w/w
De-sensitising agent	None
Density at 20°C	ca. 1.04 g/cm3
Viscosity at 20°C	ca. 8 mPa.s
Refractive index at 20°C	ca. 1.499
Critical temperature (SADT)	ca. 60°C
Cold storage stability	freezing point below ca. +10°C
Recommended storage temperature	10 to 40°C (104°F)
Storage stability (activity) as from date of delivery	6 months

This product is in compliance with the ElektroG (EU-Directives: RoHS 2002/95/EG, WEEE 2002/96/EG)

Half-life Data :

10h/1h/1min (0.1 m / benzene): 104°C / 124°C / 165°C

Application：

ETHYLENE:

Initiator for the high pressure polymerisation of ethylene in combination with other peroxides of varying degrees of activity. Temperature range: 200-250°C. The product is liquid and readily miscible with high-boiling aliphatic hydrocarbons. At low temperatures and under high pressure, however, highlyconcentrated solutions can cause crystal precipitation in dosing pumps.

Disadvantage: formation of benzene as decomposition product, potential alternative could be tert.Butylperoxy-3,3,5-trimethylcyclohexane (TBPIN)

STYRENE:

Initiator for the polymerisation of styrene in bulk or suspension.

Temperature range: 100-140°C.

Usage level: 0.02-0.1% as supplied.

Particular advantages: reduction of residual monomer content in the polymer. We recommend the combination with more active peroxides, e.g. Dibenzoyl peroxide (BPO) or tert.Butylper-2-ethylhexanoate (TBPEH).

Disadvantage: formation of benzene as decomposition product, potential alternative could be tert.Butylperoxy-2-ethylhexylcarbonate (TBPEHC)

OTHER MONOMERS:

Initiator for the polymerisation of (meth)acrylates, and allyl monomers, where necessary in combination with more active peroxides, particularly Dibenzoyl peroxide or tert.Butylper-2-ethylhexanoate (TBPEH).

Temperature range: 100-140°C.

Usage level: 0.1-1% as supplied.

Package：

25kg in HDPE canister.

FAQ

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