Influence of concentration of the urea on the hydrogen peroxide contentin 3% aqueous and non-aqueous solutions stored at different temperatures
Keywords:
hydrogen peroxide, urea, stability, activation energy, storageAbstract
In this study, the stability of the hydrogen peroxide in 3% aqueous and non-aqueous solutions with different amount of urea (2-10%) was examined. The solutions were stored at 20-40° C. The decomposition process proceeded according to first-order. The decomposition rate constant of the hydrogen peroxide increased with the increase of urea and the activation energy decreased. The storage temperature also had influence on decomposition of the active substance. Solutions of the hydrogen peroxide prepared with polyethylene glycol 300, stabilized with 6% addition of urea were more stable than analogous aqueous solutions.
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