Quote:
Originally Posted by Ralph Volkert
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Caution about using alloys and or stainless steel as sacrificial anode... The alloys such as chromium and other materials are released into the solution
These metals are extremely toxic and extreme care should be used when handling. ESPECIALLY if you are reusing the caustic solution. and allowing the waste metals to accumulate. Do not just throw this solution away in your yard or down the drain. Using just mild steel or an inert material will not create a toxic solution. It will remain just water with caustic pH.
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I've read this thread end to end and find the chemistry of the simplest things fascinating. But, I read all these chemicals and acids and solutions mentioned without much discussion of disposal. Bob warned about splashing your clothes, hands and eyes. Another fellow damn near blew himself up with a hydrogen gas arc! So, what happens to the immersion bath after the part is clean? Do you guys pour it out on the ground, down a sewer or neutralize it with the opposing Ph agent? Inquiring minds want to know.