Nomenclature
CAS number: 93-59-4
Benzenecarboperoxoic acid; peroxybenzoic acid; benzoyl hydroperoxide.
C
7H
6O
3; mol wt 138.12.
C 60.87%, H 4.38%, O 34.75%.
Description and references
Prepd from dibenzoyl peroxide by treatment
with a soln of sodium methoxide in methanol at 0°: Braun, Org. Synth. 13, 86 (1933); cf. Bergmann,
Witte, DE 409779; Chem. Zentralbl. 1925 I,, 1911.
Properties
Leaflets from benzene. Acrid odor. mp 41-43°. Very volatile. Sublimes
in desiccator. bp15 100-110° (partial decomposition). Volatile with steam.
Very sparingly sol in water, but turns liquid upon contact with water;
sparingly sol in petr ether; freely sol in other organic solvents.
Stability of solns with chloroform, carbon tetrachloride, ether,
benzene: Prileshajew, Chem. Zentralbl. 1911
I,, 1280; Kolthoff et al., J. Polym. Sci. 2, 199 (1947), C.A. 41, 4960 (1947). Forms an
unstable acid sodium salt, and a somewhat more stable neutral sodium
salt.Use
To convert ethylenic compounds into oxides; in analysis
of unsatd compounds, to determine the number of double bonds.