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Author: Subject: How to clean up Active Charcoal in the lab?
Ijo2
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thumbdown.gif posted on 17-1-2019 at 11:33
How to clean up Active Charcoal in the lab?


A short question: my concrete floor is black and covered with Norrit or activated fine carbon dust.

So far, I use fine sand/dust, detergent and much water to remove it. Because it sticks to your hands, shoes, clothes there was the first step: I covered the whole floor with paper because the stronger adsorption it prevents me that other rooms get contaminated because it sticks to shoes...

This sounds like a problem: yesterday I spend 4 hours and the lab is still dirty: the floor is still black and I wonder what I can do?

A) Mix it with certain colloids ?
B) Where I can find theoretical data about adsorption to active carbon?


Note: if you think about it then it's graphite like in pencils: so if I can apply the eraser principle then I suppose that there is no reason to get exhausted from this tuff task.

It really sucks: there is no fresh air but I have a strong vacuum pump.

SECOND DISCUSSION:
I was just looking for another more safe destination then a basement to continue with my hobby. However I live in a city and there is no better or safer option then a own garage without neigbours or the appartement if I have more knowledge about how to make a DIY cheap fumehood.



But let's focus on the cleaning procedure first: any ideas or experience with this matter?Text





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Σldritch
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[*] posted on 17-1-2019 at 12:53


Concrete floor you say? Why not just burn it if it is so fine?
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Sulaiman
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[*] posted on 17-1-2019 at 12:58


Piranha Solution is the only thing that I've used to eat carbon,
but I certainly would not use it in bulk as this would require,
as it is reportedly very dangerous in contact with anything organic.

Detergent will help loosen some but I can't think of anything safe that would remove all.

Do a reasonable cleanup then paint everything ?

EDIT: A pressure washer !
I have a generic (cheap) one and it can take the surface off of concrete using a small jet.
If you do not have one then buy a cheap one - to save many hours of dirty work

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My 'Lab' is a well ventilated shed so the first thing that comes to my mind for a basement lab is ventilation,
probably best to plan for a fume cupboard with extractor and just install the extractor until funds and time permit ?
Ample or excessive fire prevention and extinguishing measures.
Regular deliberate evaluation of evacuation procedure and route.

[Edited on 17-1-2019 by Sulaiman]




CAUTION : Hobby Chemist, not Professional or even Amateur
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[*] posted on 17-1-2019 at 13:03


Paint.

Piranha soln will trash the concrete
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CharlieA
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[*] posted on 17-1-2019 at 18:06


Powdered charcoal? Can you vacuum it up? Wet vacuum it up?
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phlogiston
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[*] posted on 18-1-2019 at 03:41


+1 on detergent solution.

just warm water with dishwasher soap is quite effective for cleaning charcoal-contaminated surfaces, with a a stiff brush (or a pressure washer) to dislodge it from small holes/irregularities.





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draculic acid69
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[*] posted on 18-1-2019 at 16:40


Ammonia/Windex gets rid of black fingerprint dust if that helps.fingerprint dust is carbon black right.

[Edited on 19-1-2019 by draculic acid69]
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