Greetings LRC.
I am a tech in a physical chemistry lab. A bunch of tweezers and razor blades laying around the lab are rusted. When I asked the PI if I could order new tweezers and razor blades and he told me to get rid of the rust and they would be good as new. So far I have tried dipping them in 10M HCl but that didn't work.
Any suggestions?
coca-cola.
sulfuric acid will eat through anything- i'm sure it would be useful in removing rust
try sulfuric acid. The 18 M stuff. Can't go wrong there (unless you get it on your skin).
Other options: Acetic Acid (very concentrated though, since this is a weak acid. But I suppose you already know that).
Oxalic Acid. again very concentrated.
and you know bill nye isn't a scientist, right? he just plays one on tv. It's a common misconception, don't worry.
Anyone?
Pray.
God willing, the rust will disappear.
It's magic. Anything complicated...the answer is magic and baby jesus.
Use a battery charger
https://www.youtube.com/watch?v=54ADeB6V1rQ
this video is better
Dilute acid should do it. Do not use concentrated acid unless you really know what you are doing and they would likely just dissolve the whole item. Metals are often soluble in acid.
Sandpaper is probably a good option too.
You're a tech in a chem lab and you dipped what I'm assuming is steel in 10M HCl?
I hope you were working under a hood.
Anyways a dilute acetic acid solution will work. Soak the tools for a bit and then scrub with a wire brush.
your PI is also probably messing with you.
Shouldn't we be asking you?
You can remove the rust, but you can't undo the pitting. Chances are, your tools were either cheap (in which case you should just buy new ones) or fine (in which case the pitting has destroyed their value, and you should just buy new ones)
That said,
1) Scrub with steel wool
2) Store bought rust remover (eg boat jelly), then (1)
3) Soak in acid, then (1)
4) Electrolysis, then (1)
Get them chromed. Would look tight!
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