The Most Toxic Chemical You've Handled
- Thread starter Slenn
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Trying to make a PCB for an electronic board game that I designed at Uni. Enlisted the help of my friend the PhD to acquire chemicals to strip the copper from the board.
First board, used the last of the watered-down-for-students hydrochloric acid and hydrogen peroxide, which went nicely.
For the second board, we had to get some more of the two from the store rooms. Using the same recipe that we did for the first board, we mixed up the chemicals, then dropped the board in.
We forgot that these chemicals weren't watered down.
Result: Completely bare circuit board, melted bucket, chlorine gas (thank CHRIST we were using a fume hood) and laughs.
First board, used the last of the watered-down-for-students hydrochloric acid and hydrogen peroxide, which went nicely.
For the second board, we had to get some more of the two from the store rooms. Using the same recipe that we did for the first board, we mixed up the chemicals, then dropped the board in.
We forgot that these chemicals weren't watered down.
Result: Completely bare circuit board, melted bucket, chlorine gas (thank CHRIST we were using a fume hood) and laughs.
Francium doesn't really exist though except for about a second so I doubt anyone's ever put it into water. The most toxic thing I've handled is probably mercuric chloride as part of Nessler's reagent. Most corrosive is probably 9M sulphuric, most illegal probably methamphetamine, most dangerous probably a solvent like acetonitrile or chloroform.SckizoBoy said:
I hear that stuff is especially dangerous when inhaled, just breathing a small amount of it is enough to kill someone.Annoying Turd said:
Hydrofluoric acid. It was used for cleaning industrial equipment. No problems when I handled it, but when it was spilled by a colleague it ate through half an inch of concrete.
Euthanasia in my parent's veterinary clinic. That bottle creeps the shit out of me though. It looks innocent enough, but the label may as well say "Concentrated death".
Aluminium phosphide is probably the most poisonous thing I've been near (it reacts with water in the air to make phosphine gas which is an agricultural fumigant).
Other hazards would be the usual highly concentrated sulphuric and hydrochloric acids, LN2 and the mercury in my teeth.
Other hazards would be the usual highly concentrated sulphuric and hydrochloric acids, LN2 and the mercury in my teeth.
Well not really "handled" as much as "applied to". I once had to apply a small amount of liquid nitrogen to a nasty blemish to freeze it off. I finally didn't have to wear a band-aid over it saying "I got into a fight." anymore!
I once worked for a day at a PBC recycling plant. PBC comes from inside industrial electrical transformers and is highly carcinogenic, less than 11 parts per million of exposure is required for you to be placed in the high risk category for cancer (liver in particular for some reason). This was all in the training manual I was reading while the building was on fire.
Entire vats of Boiling Trichloroethylene + Trichloroethylene vapours, i was told it gives you cancer and makes your balls drop off. Also fuming Nitric and Sulfuric acids. Chlorine/mustard gas, lol pool chemicals mixed with acis and bases, how do they work?
