Di(3,5,5-Trimethylhexanoyl) Peroxide / CAS 3851-87-4

Di(3,5,5-Trimethylhexanoyl) Peroxide

。Product description

　Di(3,5,5-trimethylhexanoyl) peroxide

　75% solution in odorless mineral spirits

　Molecular weight : 314.5

　Theoretical active oxygen content : 5.09%

　CAS No. : 3851-87-4

。Specification 

　Appearance : Clear liquid

　Assay : 74.0-76.0%

　Color : 20 Pt-Co max.

　Inorganic + organic hydrolyzable chloride : 250mg/kg max.

。Physical properties

Density, 20℃ : 885 kg/m³

　Viscosity, 20℃ : 13.0 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-K in chlorobenzene:

　t = 0.1 hr 1 hr 10 hr

　at 96℃ 77℃ 59℃

。Storage 

LQ-K Ts max. = 0℃ and

　Ts min. = -10℃ to prevent crystallization

　When stored according to these recommended storage conditions, LQ-K will remain within our

　plant specifications for a period of at least three months after delivery.

。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-K 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, 2,2,4,7,9,9-hexamethyldecane, 2,4,4-Trimethylpentane

。Application 

Polymerization of ethylene

　LQ-K 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-K is active in the temperature range of 150-190℃. 

Polymerization of vinylchloride

　LQ-K is used as an initiator for the suspension and mass polymerization of vinylchloride 

　between 50℃ and 70℃.