Cumene hydroperoxide

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A pale color liquid often used as a Catalyst for curing polyester, acrylic, and some types of silicone resins.

Synonyms and Related Terms

dimethylbenzyl hydroperoxide

Chemical structure

Cumene hydroperoxide.jpg


  • Toxic by inhalation and skin absorption.
  • Flammable. Flash point =79C.
  • May explode if decomposed by sunlight or acids.
  • Sigma-Aldrich: SDS

Physical and Chemical Properties

Soluble in ethanol, acetone, esters, hydrocarbons, chlorinated hydrocarbons. Slightly soluble in water.

Composition C6H5C(CH3)2OOH
CAS 80-15-9
Melting Point -10 C
Density 1.05 g/ml
Molecular Weight mol. wt. = 152.2

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