Kinetics of the decomposition and the estimation of the stability of 10% aqueous and non-aqueous hydrogen peroxide solutions
作者： Maria Zun , Dorota Dwornicka , Katarzyna Wojciechowska , Katarzyna Swiader , Regina Kasperek
关键词: Aqueous solution 、 Hydrogen peroxide 、 Inorganic chemistry 、 Medicine 、 Decomposition 、 Kinetics 、 Activation energy 、 Urea 、 Pharmacology toxicology 、 Biochemistry 、 Molecular biology 、 Pharmacology 、 General Medicine
摘要: In this study, the stability of 10% hydrogen peroxide aqueous and non-aqueous solutions with the addition of 6% (w/w) of urea was evaluated. The solutions were stored at 20°C, 30°C and 40°C, and the decomposition of hydrogen peroxide proceeded according to first-order kinetics. With the addition of the urea in the solutions, the decomposition rate constant increased and the activation energy decreased. The temperature of storage also affected the decomposition of substance, however, 10% hydrogen peroxide solutions prepared in PEG-300, and stabilized with the addition of 6% (w/w) of urea had the best constancy.
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