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    lnarayan's Avatar
    lnarayan Posts: 2, Reputation: 1
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    #1

    Jul 15, 2010, 04:19 AM
    KMnO4 NaOH Fe= ?
    kmno4 + naoh + fe+h2o= ? We wanted to know what is the reactionand end products with balancing the equation
    lnarayan's Avatar
    lnarayan Posts: 2, Reputation: 1
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    #2

    Jul 15, 2010, 04:22 AM

    KMnO4 + NaOH
    Why this the combination of the above bath is used for descaling of alloy steels
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    Unknown008 Posts: 8,076, Reputation: 723
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    #3

    Jul 18, 2010, 08:11 AM

    You should know that KMnO4 is an oxidising agent. This, in alkaline medium will oxidise all the Fe^2+ formed from rusting to soluble Fe^3+. This soluble Fe^3+ will then react with NaOH to form the insoluble Fe(OH)3. You can now wipe this off, leaving only the Fe metal under.
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