How can I dispose of Kreem tank wash? (Acid wash)

[cboling]

I did the Kreem coating to my gas tank a while back and so far so good. I still have the acid wash in a 2 gallon bucket and need to dispose of it. I believ it is a phosphoric acid but without looking at the safety sheet I am not 100% sure. Anyone know how or where I can dispose of this stuff? Is there anything to safely neutralize it? Can it be neutralized and then poured down the drain?

[romulux]

Phosphoric acid is not dangerous.  Dilute it and dump it in your yard.  Good for plants.

See section 12: http://www.kemira-growhow.com/NR/rdonlyres/45210557-A624-40F8-99B1-620776B7A0CB/0/phosacidjan03.pdf

[cboling]

Thanks. That's good to know. If only I knew how to search better and was more patient to read. 

[lilwoody]

Gulf of Mexico....couldn't hurt....might help.