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ProfessorGAC

(76,553 posts)
19. One More Note
Thu Apr 2, 2020, 01:40 PM
Apr 2020

If you want to remove rust VERY effectively, get some Barkeeper's Friend.
It contains oxalic acid. Oxalic acid forms iron compounds that are highly water soluble.
You can buy 99+% oxalic, but there are some health hazards associated with the pure form.
In BKF, it's only a couple % so it's safer by a lot.
Cheaper, too. And it works great!

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