Accidentally blew up one of the capacitors that come in the arduino starter kit (25v, 100fm??) in my bedroom
I’ve cleaned up the mess but is it safe? The ventilation is good but while I was cleaning some of the fibres floated away.
Also it exploded on my breadboard, I’ve cleaned it well but I’m worried that some of the fibres may have entered it, would that be a problem?
Thanks!
Was this a Uranium or Plutonium capacitor?
Look real close, if you have a magnifying glass use it. If you don't see anything then it should be OK
Next time: take care that you connect the capacitor with positive to positive and negative to negative...
Usually the negative lead is marked with a series of - signs.
If there are no markings: the outside is usually the negative side...
I've never heard of any suggestion that the innards of an electrolytic capacitor are dangerous, other than hitting you in the eye when they explode.
However, if you really want to know go to a reputable electronics retailer (RS, Farnell, Mouser etc, NOT eBay), find the capacitors, find the data sheets and product safety data and see what the manufacturers say.
Welcome to the world of electronics.
Regard yourself as having completed the first noob task.
Tom.. 
That would be 100nF I'd say. 100mF is big.
How much voltage did you feed into the poor little thing?
You gotta love those videos 
Also all stories about students that plug a electrolyte into classmates powerstrip.. Power on Kaboom
Ayyy Aussie, and thanks but dw I’ve been doing this for a couple months I just made a dumb mistake and was worried abt safety, fixed now though!
Just an error with the circuit, was just worried about the safety of cleanup cause google was giving me mixed answers, dw the little things allr! (Well not the one that blew up but um-)
Exactly how did you clean things?
Used a dustpan and shovel to get all the stuff off both my desk and the electronics, blew on the broad board outside (shitty idea) to try and clear it which worked well enough, I didn’t see any fluid or crystals just ‘fluff’
And had my window open and fan blowing for ventilation
Basically the inside of an electrolytic cap is aluminum foil and paper which is soaked in some solution which may be slightly acidic. Nothing really to worry about but I would wipe things off with a damp cloth with a mild cleaner,
Don't forget crisis therapy, for the remaining still alive but traumatized caps.
Trust I’ve given them lots of therapy and emotional support 
A considerate perpetrator 
I've found the smoke is any moisture in the capacitor going up.
Although some are in confined spaces.
AKA one-shot noise source.
It seems no one was in the forest to hear the tree fall...
Tom...
