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Author Topic: Lead removal solution must not remove alloys from steel substrate.  (Read 303 times)

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xerxes

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Hi! New here!

I need to use a solution that dissolves lead that is galled onto a steel alloy substrate, but it must not remove any alloys in the surface of the steel substrate. I have a way to dissolve metallic lead: Make a 50/50 solution of 3% hydrogen peroxide, and distilled white vinegar (acetic acid I think).   A chip of lead completely turns into an insoluble white powder plus whatever invisible chemicals in the solution.

I need to know if this solution will also LEACH any of the alloys (CR, S, Fe, Si) in the surface of the steel. Thx, Xerxes
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Enthalpy

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Re: Lead removal solution must not remove alloys from steel substrate.
« Reply #1 on: December 31, 2016, 01:38:04 PM »

Welcome, Xerxes!

My gut feeling is that peroxide and an acid, even mild, will corrode the steel, and faster than they dissolve lead. I might perhaps be wrong.

Some companies specialize in the surface treatment of metals. Why shouldn't you contract them for this task? It's a real knowledge, long to acquire, and they possess it. One such company was able to remove for me a chrome layer and leave the steel beneath untouched.
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