。Product description
2,2-Di(tert-butylperoxy)butane
50% solution in odorless mineral spirits
Molecular weight : 234.3
Theoretical active Oxygen content : 13.66%
CAS No. : 2167-23-9
。Specification
Appearance : clear colorless liquid
Assay : 50.0±1.0%
Color : 20 Pt-Co max.
Hydroperoxides (as TBHP) : 0.3% max.
。Physical properties
Density, 20°C : 875 kg/m3
Viscosity, 20 °C : 16 mPa.s
。Half life data
The reactivity of an organic peroxide is usually given by its half life (t1/2) at various temperatures.
For LQ-DBPB in chlorobenzene:
t 0.1 hr 1 hr 10 hr
at 136°C 116°C 98°C
。Major decomposition products
Methane, Ethane, Acetone, tert-Butanol, Carbon dioxide, 2-Methoxy-2-methylpropane
。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-DBPB is classified as Organic peroxide type C; liquid, Division 5.2; UN 3103; PG II.
。Application
。Polymerization of styrene
LQ-DBPB can be used for the suspension polymerization and copolymerization of styrene in the
temperature range between 90°C and130°C. During polymerization the temperature is increased in
steps.