Using Acids and Bases
1. Acids and
Bases (especially when they are concentrated) are dangerous chemicals and need
to be handled properly to ensure that an accident not occur.
2. If you are making
an acid or base dilution (in water for instance) from a concentrated solution,
always add the concentrated solution to the water. Make sure that you add the
concentrated solution slowly. It often will still be exothermic, meaning the
addition needs to be done carefully and may require an ice water bath
(especially if the solvent has a lower boiling point like methanol).
3. If you are
adding a strong acid to a strong base, this must be done slowly and often in an
ice water bath because the reaction is exothermic.
4. Reacting
acids with sodium bicarbonate or sodium carbonate will release carbon dioxide,
so the addition needs to be done slowly, or the solution will fizz over. If you
are doing an extraction in a separatory funnel, vent more frequently to release
the carbon dioxide.