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ProductDataSheet SHIVOX–BPOPOWDER/PASTE

Productdescription DibenzoylPeroxide,Powder,50%WithDiMethylPhthalate

CASNo. :94-36-0

EINECS/ELINCSNo. :202-327-6TSCAstatus :listedoninventory

Specifications Appearance :WhitefreeflowingpowderTotalactiveoxygen :48–50%

Characteristics Density,20°C :1.230g/cm3BulkDensity :0.620-0.650g/cm3

Storage Duetotherelativelyunstablenatureoforganicperoxidesalossofqualitycanbedetectedoveraperiodoftime.Tominimizethelossofquality,We recommendamaximumstoragetemperature(Tsmax.)foreachorganicperoxideproduct.

ForSHIVOXBPO Tsmax.=25°C

Whenstoredundertherecommendedstorageconditions,SHIVOXBPOwill remainwithinthespecificationsforaperiodofat leastoneYearafterdelivery.

Thermalstability Organicperoxidesare thermallyunstablesubstances,whichmay

undergoself-acceleratingdecomposition.Thelowesttemperatureat which self- accelerating decomposition of a substance in theoriginal packaging may occur is the Self-AcceleratingDecompositionTemperature(SADT).TheSADTisdeterminedon

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thebasisoftheHeatAccumulationStorageTest.

ForSHIVOXBPO SADT:53°C

TheHeatAccumulationStorageTestisarecognizedtestmethodforthedeterminationoftheSADToforganicperoxides.

MajordecompositionCarbondioxide,benzene,benzoicacid,diphenyl,phenylbenzoate

products

Packagingandtransport Thestandardpackagingisa7PlyCardboardboxfor25KgBenzoyl

peroxide.

Packagingandtransportmeettheinternationalregulations.Forothercustomizedpackingconsultus.

SHIVOXisclassifiedasOrganicperoxidetypeD;Solid;Division5.2;UN3106.

Safetyandhandling Keepcontainerstightlyclosed.StoreandhandleSHIVOXBPOinadrywell-ventilatedplaceawayfromsourcesofheatorignitionanddirectsunlight.Neverweighoutinthestorageroom.

Avoidcontactwithreducingagents(e.g.amines),acids,alkalisandheavymetalcompounds(e.g.accelerators,driersandmetalsoaps).

PleaserefertotheMaterialSafetyDataSheet (MSDS) for furtherinformationonthesafestorage,useandhandlingofSHIVOXBPO.Thisinformationshouldbethoroughlyreviewedpriortoacceptanceofthisproduct.

Applications SHIVOXBPOisanon-caking,fine,granularpowderwithexcellentfree

flowingpropertiescontaining50%dibenzoylperoxide.SHIVOXBPOis used for the curing of unsaturated polyester resins and (meth)acrylic resins at ambient and elevated temperatures. Attemperaturesupto80°C,SHIVOXBPOshouldbeusediscombinationwithanaromatictertiaryamineaccelerator,above80°Ctheuseofanacceleratorisnotrequired.

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SHIVOXBPO iseasy tohandle,easy todisperseanddissolvesveryquicklyinunsaturatedpolyesterresinsand(meth)acrylicresins.SHIVOX BPO does not dissolve clearly in the resin system and isthereforenotapplicablefortheproductionofcuredpartswhenahighdegreeoftransparencyisrequired.

ThecuringsystemSHIVOXBPO/amineacceleratorshowsaveryfastcurethatishardlyinfluencedbyhumidityandfillers.Evenatlowtemperaturesarelativelygoodcurewillbeobtained.Adisadvantagemaybetheyellowcolorandpoorlightresistanceofthemoldedproduct.

Dosing Depending on working conditions, the following peroxide andacceleratordosagelevelsarerecommended:

SHIVOXBPO 2–5Phr*Amineaccelerator 0.05–0.5Phr

CureCharacteristics InahighreactivestandardorthophthalicresinincombinationwithAccelerator(=1%cobalt)thefollowingapplicationcharacteristicsweredetermined:

Geltimesat20°C UPResin 100 100 100 100 100 100 100 SHIVOXBPO 3.0 3.0 3.0 3.0 3.0 3.0 3.0 Accelerator 0.1 0.4 Accelerator 0.1 0.5 Accelerator 0.05 0.1 0.4

GelTime 22 6 160 20 20 5 1 (Minutes) Cureof1MMpureresinlayerat20°C The speed of cure is expressed as the time to reach a persoz

hardnessofrespectively30,60and120s. Persoz:30

3phrSHIVOXBPO+0.1phrAcc 3phrSHIVOXBPO+0.4phrAcc

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