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Dicumyl peroxide is an organic compound with the formula (C6H5CMe2O)2 (Me = CH 3). Classified as a dialky peroxide, it is produced on a large scale industrially for use in polymer chemistry. It serves as an initiator and crosslinking agent in the production of low density polyethylene. [2]
Dialkyl peroxides, e.g., dicumyl peroxide, are synthesized by addition of hydrogen peroxide to alkenes or by O-alkylation of hydroperoxides. Diacyl peroxides are typically prepared by treating hydrogen peroxide with acid chlorides or acid anhydrides in the presence of base: [1] H 2 O 2 + 2 RCOCl → (RCO 2) 2 + 2 HCl H 2 O 2 + (RCO) 2 O → ...
UN Number Class Proper Shipping Name UN 2101? (UN No. no longer in use) tert-Butyl peroxymaleate (UN No. no longer in use) [1] UN 2102? (UN No. no longer in use) Di-tert-butyl peroxide (UN No. no longer in use) [1]
Cumene hydroperoxide is an intermediate in the cumene process for producing phenol and acetone from benzene and propene. Cumene hydroperoxide is a free radical initiator for production of acrylates. [5] Cumene hydroperoxide is involved as an organic peroxide in the manufacturing of propylene oxide by the oxidation of propylene.
Peroxide crosslinking (PE-Xa): The crosslinking of polyethylene using peroxides (e.g. dicumyl peroxide or di-tert-butyl peroxide) is still of major importance. In the so-called Engel process , a mixture of HDPE and 2% [ 12 ] peroxide is at first mixed at low temperatures in an extruder and then crosslinked at high temperatures (between 200 °C ...
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The self-accelerating decomposition temperature (SADT) is the lowest temperature at which an organic peroxide in a typical vessel or shipping package will undergo a self-accelerating decomposition within one week. [1] The SADT is the point at which the heat evolution from the decomposition reaction and the heat removal rate from the package of ...
Main group peroxides. It has been suggested that this article be merged with Metal peroxide. (Discuss) Proposed since November 2024. In chemistry, main group peroxides are peroxide derivatives of the main group elements. Many compounds of the main group elements form peroxides (R−O−O−R'), and a few are of commercial significance.