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Key Documents

8.01641

Sigma-Aldrich

Benzoyl peroxide

(with 25% H2O) for synthesis

Synonym(s):

Benzoyl peroxide, Dibenzoyl peroxide

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About This Item

Empirical Formula (Hill Notation):
C14H10O4
CAS Number:
94-36-0
Molecular Weight:
242.23
MDL number:
MFCD00003071
UNSPSC Code:
12352120
EC Index Number:
202-327-6
NACRES:
NA.22

vapor pressure

<1 hPa ( 20 °C)

Quality Level

200

form

crystals

autoignition temp.

>380 °C

potency

7710 mg/kg LD50, oral (Rat)

reaction suitability

reagent type: oxidant

mp

100-105 °C (decomposition)

density

1.33 g/cm3 at 25 °C

bulk density

500‑600 kg/m3

functional group

peroxide

storage temp.

15-25°C

InChI

1S/C14H10O4/c15-13(11-7-3-1-4-8-11)17-18-14(16)12-9-5-2-6-10-12/h1-10H

InChI key

OMPJBNCRMGITSC-UHFFFAOYSA-N

General description

Benzoyl peroxide is an organic peroxide commonly used to initiate free radical polymerizations and to form copolymers through grafting reactions. It is also used as an oxidizer during chemical reactions.

Application

Benzoyl peroxide is used:

  • In the direct N–O bond synthesis from 1,2-diamines.
  • As an initiator in the synthesis of the cross-linked unsaturated copolymer by cross-linking methyl methacrylate with Poly (2-butene maleate) polyester.

Analysis Note

Assay (iodometric): 72,0 - 77,0 %(m)
Melting range (after drying): 102 - 105 °C
Identity (IR): conforms

signalword

Danger

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Eye Irrit. 2 - Org. Perox. C - Skin Sens. 1A

Storage Class

4.1A - Other explosive hazardous materials

wgk_germany

WGK 2

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Certificates of Analysis (COA)

Lot/Batch Number
S8357041
S8414141
S8290241
S8467541
S8297041

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Direct N--O bond formation via oxidation of amines with benzoyl peroxide
Banerjee A, et al.
Chemical Science, 10(71), 2124-2129 (2019)

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