Abstract
The stability of ammonia-peroxide mixtures (APM) has been investigated as a function of temperature (24-65^oC), dilution ratio (1:1:5-1:2:100) and Fe^2^+ concentration (0-10ppb) using an optical concentration monitor. The results show that the change in hydrogen peroxide concentration increased with an increase in temperature and Fe^2^+ concentration in a four hour period. The decomposition rate of hydrogen peroxide increased with an increase in solution pH in the range of 8.0 to 9.7. The kinetic analysis of experimental data showed that the H2O2 decomposition reaction follows a first order kinetics with respect to both H2O2 and OH^- concentrations. In the presence of Fe^2^+, hydrogen peroxide decomposition followed a first order reaction kinetics with respect to H2O2 concentration. The calculated rate constant increased with an increase in temperature and Fe^2^+ concentration. The apparent activation energy of H2O2 decomposition was calculated to be 65+/-3kJ/mol. In the presence of Fe^2^+, the activation energy was calculated to be 50+/-5kJ/mol.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
