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    Author(s): Peter W. Hart; Carl HoutmanKolby Hirth
    Date: 2013
    Source: Tappi Journal, Volume 12, Number 7, July 2013; pp. 59-65.
    Publication Series: Scientific Journal (JRNL)
    Station: Forest Products Laboratory
    PDF: Download Publication  (402.65 KB)


    When hydrogen peroxide is mixed with caustic soda, an auto-accelerating reaction can lead to generation of significant amounts of heat and oxygen. On the basis of experiments using typical pulp mill process concentration and temperatures, a relatively simple kinetic model has been developed. Evaluation of these model results reveals that hydrogen peroxide-caustic soda systems are extremely sensitive to hydrogen peroxide:caustic soda ratio, transition metal contamination, and temperature. Small changes in initial conditions can result in a close system becoming explosive. Analysis of model results was used to develop guidelines for safer application of hydrogen peroxide in a mill setting.

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    Hart, Peter W.; Houtman, Carl; Hirth, Kolby. 2013. Hydrogen peroxide and caustic soda: Dancing with a dragon while bleaching. Tappi Journal. 12(7): 59-65.


    Hydrogen Peroxide, Sodium Hydroxide, safety, hazards

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