Does Muriatic Acid Go Bad?

[ssabin]

I have an old partially used of muriatic acid (maybe ten years old). Is there anything wrong with using this to lower pH/TA?

Thanks!

 

[txborn]

According to the MSDS, shelf life is unlimited on tightly closed containers.

Use it up!

 

[ssabin]

Thank you much!

 

[rollymon]

I recently found 2 jugs in my storage area that I had placed there and forgotten 2 or 3 years ago. I simply opened them carefully as to not allow any built up fumes to hit me in the face and then proceeded to pour a few drops of each jug on an out of the way piece of concrete walk. The instant reaction of the acid on the concrete convinced me it was still good. I used the acid to adjust my Ph with accurate results.

 

[dcbear90]

A 10 year old thread comes through. Found some MA in my shed. From this, sounds like it's still good!