Post Number: 49
Posted From: 220.127.116.11
|Posted on Wednesday, May 21, 2008 - 02:36 pm: ||
Can lactic acid go bad over time? I just found an old (2+ years) bottle of the ID Carlson 88% Lactic acid. Is it safe to use? Same strength?
Post Number: 8886
Posted From: 18.104.22.168
|Posted on Wednesday, May 21, 2008 - 02:39 pm: ||
I bought a liter of 88 percent lactic acid eight years ago. I'm still using it to adjust the pH of my sparge water; it doesn't seem to have lost any potency as far as I can tell.
Post Number: 3205
Posted From: 22.214.171.124
|Posted on Wednesday, May 21, 2008 - 03:01 pm: ||
The only thing that would possibly happen is that it might have lost a little water. But at 88% lactic there's not much water to start with.
Oh, and as long as it hasn't had anything caustic contaminate it and neutralize it. pH papers would tell you if it's still acidic.