Originally Posted by stimmy7
I've always used a bath of dissolved baking soda, followed by a cold water rinse to stop it.
here's your science lesson for today. Baking soda is sodium bicarbonate i.e Na (sodium) HCO3 (bicarbonate)
In solution it exists at equilibrium between Na+ and HCO3-
Since the solution is usually in water, you get the following reaction
H20 + CO2 (atmospheric Carbon dioxide) forming H2CO3 (Carbonic Acid) which readily forms H+ + HCO3- : this is the complete equilibrium
H+, (hydrogen atom) is what give acids their acid properties (the more free H+ there is in solution, the stronger the acid).
Thus, Baking soda is an acid, just like vinegar (acetic acid), though slightly weaker