Benzoyl peroxide (data page)

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This page provides supplementary chemical data on benzoyl peroxide.

Material Safety Data Sheet[edit]

The handling of this chemical may incur notable safety precautions. It is highly recommend that you seek the Material Safety Datasheet (MSDS) for this chemical from a reliable source such as MSDS Search Engine, and follow its directions.

Structure and properties[edit]

Structure and properties
Index of refraction, nD 1.543
Abbe number ?
Dielectric constant, εr ? ε0 at ? °C
Bond strength ?
Bond length ?
Bond angle ?
Magnetic susceptibility ?

Thermodynamic properties[edit]

Phase behavior
Triple point ? K (? °C), ? Pa
Critical point ? K (? °C), ? Pa
Std enthalpy change
of fusion
, ΔfusHo
? kJ/mol
Std entropy change
of fusion
, ΔfusSo
? J/(mol·K)
Std enthalpy change
of vaporization
, ΔvapHo
? kJ/mol
Std entropy change
of vaporization
, ΔvapSo
? J/(mol·K)
Solid properties
Std enthalpy change
of formation
, ΔfHosolid
-369.4 kJ/mol
Standard molar entropy,
Sosolid
? J/(mol K)
Specific heat capacity, cp ? J/(mol K)
Liquid properties
Std enthalpy change
of formation
, ΔfHoliquid
? kJ/mol
Standard molar entropy,
Soliquid
? J/(mol K)
Specific heat capacity, cp ? J/(mol K)
Gas properties
Std enthalpy change
of formation
, ΔfHogas
-281.7 kJ/mol
Standard molar entropy,
Sogas
? J/(mol K)
Specific heat capacity, cp ? J/(mol K)

Spectral data[edit]

UV-Vis
λmax ? nm
Extinction coefficient, ε ?
IR
Major absorption bands 700.3 (s), 993 (s), 1219 (s), 1647 (w), 1795 (s) cm−1 when solvent is CS2[1]
NMR
Proton NMR  
Carbon-13 NMR  
Other NMR data  
MS
Masses of
main fragments
 

References[edit]

  1. ^ Shreve, O. D.; Heether, M. R.; Knight, H. B.; Swern, Daniel (February 1951). "Infrared Absorption Spectra of Some Hydroperoxides, Peroxides, and Related Compounds". Analytical Chemistry. 23 (2): 282–285. doi:10.1021/ac60050a015.