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| TBPV Product description Tert-Butyl peroxypivalate 75% solution in odorless mineral spirits Molecular weight : 174.2 Theoretical active oxygen content : 9.18% CAS No. : 927-07-1 Specification Appearance : Clear liquid Assay : 74.0-76.0% Color : 20 Pt-Co max. Hydroperoxides (as TBHP) : 1000 mg/kg max. Inorganic + organic hydrolyzable chloride : 100mg/kg max. Physical properties Density, 20℃ : 850 kg/m3 Viscosity, 20℃ : 2.1 mPa.s Half life data The reactivity of an organic peroxide is usually given by its half life (t1/2) at various temperatures. For TBPV in chlorobenzene: t 0.1 hr 1 hr 10 hr at 94℃ 75℃ 57℃ Storage TBPV Ts max. = -5℃ and Ts min. = -15℃ to prevent crystallization Packaging and transport The standard packaging is a 30-liter HDPE can for 25 kg peroxide solution. Both packaging and transport meet the international regulations. TBPV is classified as Organic peroxide type C; liquid, temperature controlled; Division 5.2; UN 3113; PG II. Rail (RID) and air (ICAO-TI/IATA-DGR) transport are forbidden. Major decomposition products Carbon dioxide, Isobutene, tert-Butanol, Acetone, Isobutane Application Polymerization of ethylene TBPV is an efficient initiator for the ethylene polymerization under high pressure in both autoclave and tubular processes. Polymerization of vinylchloride TBPV is used as an initiator for the suspension and mass polymerization of vinylchloride between 50°C and 70℃.
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