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Mechanism of hydrogen peroxide decomposition by manganese dioxide.(Peroxide Bleaching)
- Article from:
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Solutions - for People, Processes and Paper
- Article date:
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September 1, 2003
- Author:
- Wekesa, Moses; Ni, Yonghao
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Copyright informationCOPYRIGHT 2003 Paper Industry Management Association. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Application: Manganese can decompose hydrogen peroxide under alkaline conditions, but the right combination of chemicals can make the solution more stable.
Hydrogen peroxide is widely used in the pulp and paper industry, especially in the brightening of mechanical pulps. Catalytic processes that involve transition metal ions, particularly manganese, lead to the decomposition of peroxide under alkaline conditions. Because manganese dioxide is one of the more stable species among the different oxidation states of manganese, it is important to understand the chemistry involving Mn[O.sub.2] and hydrogen peroxide. The researchers studied the mechanism of Mn[O.sub.2]induced ...