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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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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

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
  • in the preparation of polyethylene composites
  • in the synthesis of polyamide 112/ethylene vinyl acetate copolymer blends.

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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 2

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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