Sunday, February 21, 2010

Ingenious ways to deal with chemical spills

I was half-dying to post this.
How to deal with chemical spills.
Most common and safe method: SPAM WATER ONTO THE SPILL AND YOU WILL BE OK.
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Ingenious methods = do it at your own risk
By the way it requires some chem knowledge to understand what is the dangerous / funny thing behind the methods.
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How to remove chemical spills:
- Acid: Sprinkle powdered calcium oxide (CaO), wait for some time, then rinse with water, little at a time.
- Alkali: Pour acid onto the spill location until all the soapy feeling is gone, then rinse with water.
- Silver nitrate: Ignore it until it is too late, when a purple to black unwashable stain appears at the spill location. Do not panic because it will disappear within a month's time. Alternatively, pour hydrochloric acid onto the spill location, then wash off the ppt with aqueous ammonia.
- Potassium dichromate (VI): Lick it clean, at most there's a metallic taste. And maybe you would get cancer.
- Potassium manganate (VII): Immediately pour pure glycerol onto the spill location. DO NOT be alarmed if it bursts into flames, simply spray some ethanol at the flame and watch the nice view. Preferably from a distance.
- Chlorine: Throw bottles of aqueous ammonia at it and soon you will see nice white fumes spreading everywhere. Don't worry it's ammonium chloride.
- Ethanol: 4 ways. 1: Leave it there for it to dry up. 2: Wipe it away with tissue and feel the coldness against your skin. 3: Toss a lit Bunsen burner at it. 4: Add nitric acid, then add silver nitrate, something boomz would happen. Too bad it's not major.

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