[Jewelry making - Article 01116] - Re: [Orchid] Dried acid

[John Burgess]

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    G'day Laura;   It might.       I would suggest that you keep a
    supply of sodium bicarbonate handy and if you spill any acid, cover
    the spill as soon as possible with the powder, then having given it
    a chance to react, sweep it up with a dustpan and brush, and dispose
    of it with the trash or into the toilet.  The tiny amount of sodium
    sulphate or nitrate will not harm the trash  nor the toilet, for the
    bicarbonate will dissolve when the toilet is flushed. 

    If you have spots where acid has dried  anywhere, then pour the
    bicarbonate powder on them; add some water, and gently mix using a
    small brush.  Finally add more bicarbonate powder , allow to dry a
    bit, then sweep it up.  Bicarbonate is very cheap and should have a
    place in any lab or room where acids are used.   I used to buy
    commercial bicarb by the hundredweight sack  for a University
    chemistry department - and it got used up rather quickly!  What
    would you do if someone smashed a half gallon bottle of concentrated
    acid?   Treat anyone with splashed with copious streams of water,
    then with onlookers out of it, pour several kilos of bicarbonate
    powder over the mess. Don't attempt to flood it with water, or pick
    out the bits of glass.   Just sweep up the whole lot when the panic
    is well over and all the acid has been absorbed and neutralized in
    the mound of bicarb.  It's now pretty harmless, but because of the
    bits of broken glass, wrap in several newspapers before putting the
    lot in the trash. 

-- 
Cheers for now,
John Burgess;   johnb AT ts.co.nz of Mapua, Nelson NZ



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