Di-tert-butyl peroxide

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Di-tert-butyl peroxide
Chemical structure of di-tert-butyl peroxide
Ball-and-stick model
3D model (JSmol)
ECHA InfoCard 100.003.395
Molar mass 146.23 g·mol−1
Density 0.796 g/cm3
Melting point −40 °C (−40 °F; 233 K)
Boiling point 109 to 111 °C (228 to 232 °F; 382 to 384 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Di-tert-butyl peroxide or DTBP is an organic compound consisting of a peroxide group bonded to two tert-butyl groups. It is one of the most stable organic peroxides. It is a colorless liquid.[1]


The peroxide bond undergoes homolysis at temperatures >100 °C. For this reason di-tert-butyl peroxide is commonly used as a radical initiator in organic synthesis and polymer chemistry. The decomposition reaction proceeds via the generation of methyl radicals.

(CH3)3COOC(CH3)3 → 2 (CH3)3CO.
(CH3)3CO.(CH3)2CO + CH3.
2 CH3. → CH3-CH3

DTBP can in principle be used in engines where oxygen is limited, since the molecule supplies both the oxidizer and the fuel.[2]


  1. ^ T. V. RajanBabu, Nigel S. Simpkins, T. V. RajanBabu "1,1-Di-tert-butyl Peroxide" in e-EROS Encyclopedia of Reagents for Organic Synthesis 2005. doi:10.1002/047084289X.rd066.pub2
  2. ^ H. O. Pritchard and P. Q. E. Clothier (1986), "Anaerobic operation of an internal combustion engine", J. Chem. Soc. Chem. Commun., 1986 (20): 1529–1530, doi:10.1039/C39860001529 

External links[edit]

  • US 5288919, Faraj, Mahmoud K., "Preparation of dialkyl peroxides", published 13 May 1993, issued 22 February 1994 
  • US 5312998, Liotta, Frank J. (Jr.); Mahmoud K. Faraj & Daniel B. Pourreau et al., "Integrated process for the production of ditertiary butyl peroxide", published 10 June 1993, issued 17 May 1994 
  • US 5371298, Pourreau, Daniel B.; Haven S. (Jr.) Kesling & Frank J. (Jr.) Liotta et al., "Preparation of dialkyl peroxides", published 22 December 1993, issued 6 December 1994