Peroxy TBPI

LQ-TBPI

Product description

　Tert-Butyl peroxyisobutyrate
　50% solution in odorless mineral spirits

　Molecular weight : 160.2
　Theoretical active oxygen content : 9.99%
　CAS No. : 109-13-7

Specification

　Appearance : Clear liquid
　Assay : 50.0 ± 1.0%
　Color : 10 Pt-Co max.
　Hydroperoxides as TBHP : 0.10% max.
　Inorganic+organic hydrolyzable chloride : 70 mg/kg max.

Physical properties

　Density, 10℃ : 840 kg/m³

Half life data

The reactivity of an organic peroxide is usually given by its half life (t1/2) at various temperatures.

For TBPI in chlorobenzene:
　t 　　　 0.1 hr　　　　 1 hr 　　　　10 hr
　at 　　　　118℃ 　　　　98℃ 　　　　79℃

Storage

　TBPI Ts max. = 10℃ and

Packaging and transport

The standard packaging is a 25-liter HDPE can for 20 kg peroxide solution. Both packaging and transport meet the international regulations.

TBPV is classified as Organic peroxide type D; liquid, temperature controlled; Division　5.2; UN 3115; PG II.
Rail (RID) and air (ICAO-TI/IATA-DGR) transport are forbidden.

Major decomposition products

Carbon dioxide, Propane, Propene, tert-Butanol, 2-Isopropoxy-2- methylpropane

Application

Polymerization of ethylene
TBPI is an efficient initiator for the ethylene polymerization under high pressure in both autoclave and tubular processes. To obtain a wide spectrum of polymerization temperatures, combinations with other peroxides are applied in practice. Depending on reaction conditions, TBPI is active in the temperature range of 165℃ and 250℃.

Polymerization of styrene
TBPI can be used for the polymerization of styrene in the temperature range between 85℃ and 105℃. Main application is the copolymerization of styrene with acrylonitrile, acrylates and methacrylates.

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