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I want to see whether I can extract tannin from all the acorns and galls I have to sweep up that is sufficiently acidic to etch steel. If citric acid works ( and it does) then I think this should as well!
I want to see whether I can extract tannin from all the acorns and galls I have to sweep up that is sufficiently acidic to etch steel. If citric acid works ( and it does) then I think this should as well!
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