This page provides supplementary chemical data on benzoyl peroxide.

Material Safety Data Sheet

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 eChemPortal search query 94-36-0, and follow its directions.

Structure and properties

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

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

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		  
  This box:   

References

  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.
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