Peroxide CPND

CPND

Product description

　 Cumyl peroxyneodecanoate 75% solution

in odorless mineral spirits

　Active Oxygen content : 5.22%
　CAS No. : 26748-47-0

Specification

　Appearance :                    Clear liquid
　Assay :                            75.0±1.0%
　Color :                              60 Pt-Co max.
　Hydroperoxides (as CHP) : 0.1% max.
　Inorganic+organic hydrolyzable chloride : 150 mg/kg max.

Physical properties

　Density, -10℃ : 962 kg/m³
　Viscosity, -10℃ : 74.6 mPa.s

Half life data

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

For CPND-C75 in chlorobenzene:

　t 　　　　0.1 hr　　　　　 1 hr 　　　　　10 hr
　at　　　　 75℃ 　　　　　56℃ 　　　　　38℃

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.

CPND-C75 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, Methane, Neodecanoic acid, Isoaliphatics, 2-Phenylpropanol-2, Acetophenone, Cumene

Application

Polymerization of ethylene
CPND-C75 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, CPND-C75 is active in the temperature range of 130-170℃.

Polymerization of vinylchloride
CPND-C75 is used as an initiator for the suspension and mass polymerization of vinylchloride between 40℃ and 65℃.

CPND-C75 is often combined with less active peroxides such as peroxydicarbonates (e.g. BCHPC) or diacylperoxides (e.g.LPO .) to increase reactor efficiency.

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