Quote: Originally posted by redox | Yeah, plastic trays would be nice.
The venting is surprisingly good, the plexiglass sash blocks off air holes, preventing leaks.
As I said, the aluminium plays no structural role, it is really only for looks. The aluminium has shown to be relatively corrosion-resistant. I have
filled the fumehood with chlorine gas, bromine vapor, nitrogen dioxide, some hydrogen sulfide, etc. The aluminium has shown little to no corrosion. I
think it is anodized or something.
Ediminion, as a response to your youtube comment, the sodium is stored in an HDPE bottle, so even if it fell, it couldn't really break. The other
poisons and reactive things are either in plastic or metal (mercuric chloride, lithium, etc.), so they couldn't break either.
Also, I will most likely be getting some sort of garbage bin soon. |
The more chemicals you store, the more sticky residue you'll find around. It's inevitable. And you seem to be on the way of stuffing the shit out of
your lab.
That's ok if there's venting.
Aluminium will corrode sooner or later, no matter it's anodized. I think HCl contributes the most to it, and we've all got lots of it. Also mercury.
One college professor was telling me how his aluminium fumehood handle failed just because there was a bottle of mercury inside.
It takes years, but that metal crumbles. The vent duct will fail first. One day, you might consider replacing it with wide plastic pipes. It tends to
be a bit expensive, but it lasts.
HDPE melts easily, and then ruptures and releases petroleum or whatever you store sodium in. That's why there a laboratory rule - pyrophorics are to
be held in metal containers filled with dry sand. It might sound a bit paranoid, but there's a reason why it's a rule.
I'm planning to buy a small fire extinguisher and I recommend it to everyone.
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