## anonymous one year ago I have a plastic gallon jug in my shop for 15+ yrs,that I marked "sulfuric or hydrocloric?? How can I tell which acid it is and what are the proper disposal methods? Thanks

• This Question is Open
1. zpupster

Chloride Ion Test. When a solution of silver nitrate is added to a solution containing chloride ions and nitric acid, a heavy bluish white precipitate of silver chloride forms. The equation for the reaction is: $AG^{+}_{(aq)} + Cl^{-}_{(aq)}\rightarrow AgCl_{(s)}\ White\ Precipitate$

2. zpupster

Sulfate Ion Test. A white precipitate of barium sulfate is formed in the presence of hydrochloric acid when a solution of barium chloride is added to a solution containing sulfate ions. The equation for the reaction is: $Ba^{+2}_{(aq)} + SO_4^{2-}\_{(aq)} \rightarrow BaSO_4\ White Precipitate$

3. zpupster

HCl disposal HCl can be combined with baking soda to form salt water and CO2. NaHCO3 + HCl = NaCl + H2O + CO2

4. zpupster

have to go now

5. anonymous

zpup, thanks very much for your in-depth answer. I never took chemistry--Just a woodworker, your answers are way over my head. Is there a very simple test--appearance, smell, color etc?? Thanks