Kinetics of the decomposition and the estimation of the stability of 10% aqueous and non-aqueous hydrogen peroxide solutions

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...

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Bibliographic Details
Published in:Current issues in pharmacy and medical sciences 2014-12, Vol.27 (4), p.213-216
Main Authors: Zun, Maria, Dwornicka, Dorota, Wojciechowska, Katarzyna, Swiader, Katarzyna, Kasperek, Regina, Rzadkowska, Marzena, Poleszak, Ewa
Format: Article
Language:English
Subjects:
activation energy
hydrogen peroxide
stability
urea
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Summary: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.
ISSN:2084-980X
2300-6676
DOI:10.1515/cipms-2015-0017