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329541

Sigma-Aldrich

Dicumyl peroxide

98%

Synonym(s):

Bis(1-methyl-1-phenylethyl) peroxide, Bis(α,α-dimethylbenzyl) peroxide

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100 G
$67.80
500 G
$210.00

$67.80

Estimated to ship onMay 09, 2025

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100 G
$67.80
500 G
$210.00

About This Item

Linear Formula:
[C6H5C(CH3)2]2O2
CAS Number:
80-43-3
Molecular Weight:
270.37
Beilstein/REAXYS Number:
2056090
EC Number:
201-279-3
MDL number:
MFCD00036227
UNSPSC Code:
12162002
PubChem Substance ID:
24859798
NACRES:
NA.23

$67.80

Estimated to ship onMay 09, 2025

Request a Bulk Order

vapor density

9.3 (vs air)

Quality Level

200

vapor pressure

15.4 mmHg ( 38 °C)

assay

98%

form

solid

reaction suitability

reagent type: oxidant

mp

39-41 °C (lit.)

density

1.56 g/mL at 25 °C (lit.)

Storage temp.

2-8°C

SMILES string

CC(C)(OOC(C)(C)c1ccccc1)c2ccccc2

InChI

1S/C18H22O2/c1-17(2,15-11-7-5-8-12-15)19-20-18(3,4)16-13-9-6-10-14-16/h5-14H,1-4H3

Inchi Key

XMNIXWIUMCBBBL-UHFFFAOYSA-N

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Application

Dicumyl peroxide (DCP) is used:
  • in vulcanization of rubber
  • as a crosslinking agent in the synthesis of polylactic acid composite fibers[1]
  • in the preparation of polyethylene composites[2]
  • in the synthesis of polyamide 112/ethylene vinyl acetate copolymer blends.[3]

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Danger

Hazard Classifications

Aquatic Chronic 2 - Eye Irrit. 2 - Org. Perox. F - Repr. 1B - Skin Irrit. 2

Storage Class

5.2 - Organic peroxides and self-reacting hazardous materials

wgk_germany

WGK 3

flash_point_f

230.0 °F - closed cup

flash_point_c

110 °C - closed cup

ppe

dust mask type N95 (US), Eyeshields, Gloves, type P3 (EN 143) respirator cartridges

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Certificates of Analysis (COA)

Lot/Batch Number
0000326648
0000338357
0000323564
0000326649
0000347844

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Milan Parchovianský et al.
Materials (Basel, Switzerland), 13(3) (2020-02-07)
In this work, the influence of different cleaning procedures on adhesion of composite coatings containing passive ceramic and commercial glasses was investigated. Two compositions (C2c, D2-PP) of double-layer polymer-derived ceramic (PDC) coating systems, composed from bond coat and a top
Lu Lu et al.
Scientific reports, 8(1), 14233-14233 (2018-09-27)
Polymers with reversible elongation upon cooling (EUC) and contraction upon heating (CUH) enabled applications in actuators, fasteners, dampers, grippers, swimmers, sealants, etc. With the current working temperature being limited to mainly above zero Celsius, applications for subzero Celsius environments are
Chao Wu et al.
Polymers, 11(4) (2019-04-24)
Silicone rubber composites filled with nano-silica are currently widely used as high voltage insulating materials in power transmission and substation systems. We present a systematic study on the dielectric and mechanical performance of silicone rubber filled with surface modified and
Effect of dynamic cross-linking on phase morphology and dynamic mechanical properties of polyamide 12/ethylene vinyl acetate copolymer blends
Bondan F, et al.
Polym. Bull. null
Improvement in mechanical properties of grafted polylactic acid composite fibers via hot melt extrusion
Gunning MA, et al.
Polymer Composites, 35(9), 1792-1797 (2014)
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Questions

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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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