Products

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

。Storage

　LQ-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.

　LQ-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
LQ-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, LQ-TBPI is active in the temperature range of 165℃ and 250℃.

Polymerization of styrene
LQ_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.