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Thread: Rust converting

  1. #1 Rust converting 
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    Join Date
    Feb 2010
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    I'm now doing a science project about rust converting.
    I use tannic acid and phosphoric acid to react with rust to form a complex, which in turn protects the iron.

    when i did the exp, a blue-black coating was formed, which should be the iron-tannate complex, but the coating was somehow detached no matter how long i react the acids with rust. What can I do to improve the process?


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