Risk Assessment and Thermal Hazard Potential of Hydrogen Peroxide by DSC


Kowit Piyamongkala,Suranee Anothairungrat,




Risk assessment,Thermal hazard potential,Hydrogen peroxide, DSC,


The thermal data of onset temperature, peak temperature and enthalpy of reaction of hydrogen peroxide at 35% w/w was tested by differential scanning calorimetry. The increasing of heating rate in the range of 2-8 °C/min increases the onset temperature from 76.9-84.0 °C, respectively. The activation energy of hydrogen peroxide was 57.6kJ/mol. The adiabatic decomposition temperature rise and time-to-maximum rate were 231.7 K and 32.3 sec, respectively. The thermal hazard potentials were estimated by the critical half thickness, the critical temperature and the time-to-thermal-runaway. The result confirmed that hydrogen peroxide is highly oxidizing hazardous material. Thus using in laboratory and industry must be act carefully.


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