Combining hydrogen peroxide with citric acid pickle?

[Solderbug]

Hi folks!
I have heavy copper plating on a bronze piece I’m working on and I can’t clean it off in some hard-to-reach areas. I’ve used hydrogen peroxide with Sparex before but I currently pickle with Nature’s Touch Citric Acid. Can I combine hydrogen peroxide with citric acid?
Thanks very much!

[Dennis]

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.

[Solderbug]

Thanks very much Dennis! I will definitely give it a try then. Take care, all the best.

[misspond]

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.

[Solderbug]

Excellent thank you so much!!