Just to expand a little on what Caswell has said. The acid is very weak, but even at 5%, it will still eat thru clothing, burn skin and dissolve metals, so it is still a little hazardous as far as handling it. What ever you do, just because it is similar to vinegar in pH, it doesn't mean it is as harmless as vinegar.
I've used about 2lbs of baking soda to neutralize 1 gallon of 5% electrolyte. Probably more than required, but a good rule of thumb. Be careful if you choose this method as even a teaspoon of baking soda will cause it to foam and splash VIOLENTLY.
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