Thermal decomposition of hydrogen peroxide in the presence of sulfuric acid |
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| Authors: | L -K Wu K -Y Chen S -Y Cheng B -S Lee and C -M Shu |
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| Institution: | (1) Doctoral Program, Graduate School of Engineering Science and Technology, National Yunlin University of Science and Technology (NYUST), 123, University Rd., Sec. 3, Douliou, Yunlin, 64002, Taiwan, ROC;(2) Department of General Education Center, Chienkuo Technology University, 1, Chieh Shou N. Rd., Changhua, 50094, Taiwan, ROC;(3) Institute of Safety and Disaster Prevention Technology, Central Taiwan University of Science and Technology, 666, Buzih Rd., Taichung, 40601, Taiwan, ROC;(4) Department of Safety, Health, and Environmental Engineering, NYUST, 123, University Rd., Sec. 3, Douliou, Yunlin, 64002, Taiwan, ROC; |
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| Abstract: | Hydrogen peroxide (H2O2) is popularly employed as a reaction reagent in cleaning processes for the chemical industry and semiconductor plants. By
using differential scanning calorimetry (DSC) and vent sizing package 2 (VSP2), this study focused on the thermal decomposition
reaction of H2O2 mixed with sulfuric acid (H2SO4) with low (0.1, 0.5 and 1.0 N), and high concentrations of 96 mass%, respectively. Thermokinetic data, such as exothermic
onset temperature (T
0), heat of decomposition (ΔH
d), pressure rise rate (dP/dt), and self-heating rate (dT/dt), were obtained and assessed by the DSC and VSP2 experiments. From the thermal decomposition reaction on various concentrations
of H2SO4, the experimental data of T
0, ΔH, dP/dt, and dT/dt were obtained. Comparisons of the reactivity for H2O2 and H2O2 mixed with H2SO4 (lower and higher concentrations) were evaluated to corroborate the decomposition reaction in these systems. |
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| Keywords: | DSC hydrogen peroxide (H2O2) sulfuric acid (H2SO4) thermal decomposition reaction vent sizing package 2 (VSP2) |
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