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Molecules 2016, 21(5), 562; doi:10.3390/molecules21050562

Thermal Hazard Evaluation of Cumene Hydroperoxide-Metal Ion Mixture Using DSC, TAM III, and GC/MS

Department of General Education Center, Chienkuo Technology University, 1 Chieh-Shou N. Rd., Changhua 50094, Taiwan
Academic Editor: Derek J. McPhee
Received: 22 February 2016 / Revised: 13 April 2016 / Accepted: 23 April 2016 / Published: 28 April 2016
(This article belongs to the Section Molecular Diversity)
View Full-Text   |   Download PDF [4801 KB, uploaded 28 April 2016]   |  

Abstract

Cumene hydroperoxide (CHP) is widely used in chemical processes, mainly as an initiator for the polymerization of acrylonitrile–butadiene–styrene. It is a typical organic peroxide and an explosive substance. It is susceptible to thermal decomposition and is readily affected by contamination; moreover, it has high thermal sensitivity. The reactor tank, transit storage vessel, and pipeline used for manufacturing and transporting this substance are made of metal. Metal containers used in chemical processes can be damaged through aging, wear, erosion, and corrosion; furthermore, the containers might release metal ions. In a metal pipeline, CHP may cause incompatibility reactions because of catalyzed exothermic reactions. This paper discusses and elucidates the potential thermal hazard of a mixture of CHP and an incompatible material’s metal ions. Differential scanning calorimetry (DSC) and thermal activity monitor III (TAM III) were employed to preliminarily explore and narrate the thermal hazard at the constant temperature environment. The substance was diluted and analyzed by using a gas chromatography spectrometer (GC) and gas chromatography/mass spectrometer (GC/MS) to determine the effect of thermal cracking and metal ions of CHP. The thermokinetic parameter values obtained from the experiments are discussed; the results can be used for designing an inherently safer process. As a result, the paper finds that the most hazards are in the reaction of CHP with Fe2+. When the metal release is exothermic in advance, the system temperature increases, even leading to uncontrollable levels, and the process may slip out of control. View Full-Text
Keywords: cumene hydroperoxide (CHP); organic peroxide; differential scanning calorimetry (DSC); thermal activity monitor III (TAM III); gas chromatography/mass spectrometer (GC/MS) cumene hydroperoxide (CHP); organic peroxide; differential scanning calorimetry (DSC); thermal activity monitor III (TAM III); gas chromatography/mass spectrometer (GC/MS)
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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You, M.-L. Thermal Hazard Evaluation of Cumene Hydroperoxide-Metal Ion Mixture Using DSC, TAM III, and GC/MS. Molecules 2016, 21, 562.

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