INTRODUCTION

3-Chloroperoxybenzoic acid (MCPBA) is a peroxycarboxylic acid. A white solid, it is used widely as an oxidant in organic synthesis. MCPBA is often preferred to other peroxy acids because of its relative ease of handling.

Manufacture

MCPBA can be prepared by reacting m-Chlorobenzoyl chloride with a basic solution of hydrogen peroxide, followed by acidification.

Synonyms3-Chlorobenzenecarboperoxoic acid
CAS no.937-14-4
EINECS no.213-322-3
Molecular formulaC7H5ClO3
Molecular weight172.57
Structure

Applications

MCPBA is versatile applicable as peracid for use in laboratories.

Main areas are the oxidation of:
aldehydes and ketones to esters (Bayer-Villiger-Oxidation)
olefines to epoxides
sulfides to sulfoxides and sulfones
amines to nitroalkanes, nitroxides or N-oxides

SPECIFICATIONS

TestUnitSpecification
AppearanceWhite to off white moist crystalline powder with lumps
ColorColorless
ClarityClear to slightly hazy
3-Chloro per benzoic acid (by Iodometry)%Min 70.0
3-Chloro benzoic acid%Max 12.0
m-Chlorobenzoyl peroxide (by HPLC)%Max 0.2
Water (by KF)%Balance

STORAGE
Due to relatively unstable nature of organic peroxide a loss of quality can be detected over a period. To minimize the loss of quality, recommended maximum storage temperature (Ts max.) for each peroxide. Ts max.: 2 – 8°C)

PACKING
20 kg UN approved drum.

REACH status
MCPBA offered by ExSyn is registered under EU REACH regulations.

No matter the quantity you need, our exceptional quality and service will make ExSyn your supplier of choice! If you need any additional information or SDS, please contact us.

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