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Thread: Combining hydrogen peroxide with citric acid pickle?

  1. #1
    Join Date
    Apr 2020
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    Ontario, Canada
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    Default Combining hydrogen peroxide with citric acid pickle?

    Hi folks!
    I have heavy copper plating on a bronze piece Iím working on and I canít clean it off in some hard-to-reach areas. Iíve used hydrogen peroxide with Sparex before but I currently pickle with Natureís Touch Citric Acid. Can I combine hydrogen peroxide with citric acid?
    Thanks very much!

  2. #2
    Join Date
    Dec 2009
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    Central London
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    7,697

    Default

    Yes, but only experiment will tell whether the copper will budge. Failing that, obviously go back to Sparex, also known in UK as safety pickle. Welcome to the forum Dennis.

  3. #3
    Join Date
    Apr 2020
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    Ontario, Canada
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    Thanks very much Dennis! I will definitely give it a try then. Take care, all the best.

  4. #4
    Join Date
    Jul 2017
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    343

    Default

    Super pickle using citric acid and hydrogen peroxide does work, I use citric as my pickle. And it works fine to get the copper oxides off of bronze.

  5. #5
    Join Date
    Apr 2020
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    Ontario, Canada
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    Excellent thank you so much!!

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