Look again. I said "The phosphoric is definitely SAFER."
Someone replied " Not if it's coming out of lead acid batteries. I
wonder how much lead you put into the ground, or did you contain all
the liquid and take it to a hazardous waste site?"
I replied "For crying out loud READ!!!!!
I said Phosphoric is safer. Since when is battery acid phosphoric???"
As far as the disposal of the sulpuric acid, neutralized sulphuric
acid (which is what is left after etching concrete or limestone) is
basically Calcium sulphate and water . Totally harmless.
The lead is a different story, but battery acid contains very little
if any lead.
Yup, that is what you said.
You also said that you used sulfuric acid from batteries, maybe 10
gallons, which is what Tony responded to.
You appear to have a short memory. In the same post you also said:
"The big advantage to the sulphuric is the acid was free and we
needed to get rid of it one way or other anyway. A big pile of
batteries that needed to be shipped to the lead smelter netted in
excess of 10 gallons of pretty strong acid."
That is the second time I have quoted what *you* said. It is in the
It is enough to cause an expensive haz cleanup in a junk yard in ND.
The point by Tony, which is entirely valid, is that sulfuric acid from
lead-acid batteries should properly disposed of.
On Mon, 16 Aug 2010 09:14:08 -0700 (PDT), "Hustlin' Hank"
Not very effective though.
Years ago I stripped all the grease off the floor of the garage I
worked in using the acid out of scrapped batteries -it fumed like
crazy - but the concrete came out perfectly clean.
There is no cheap easy to get alternative, but Muriatic fumes, you
should have a fan pulling the fumes out and get a Vapor certified
Respirator, about 25$ at any hardware store. Muriatic fumes and is
hard on lungs.
This might have potential. Saw it at the pool store today. 10 year
shelf life, won't off-gas and rust things, but I'm not sure about
cheap as I have not checked a price.
I watched the video in the store. See it here:
"The Magic Egg demonstration video shows how effective ACID Magic is
by dissolving the shell of an egg without harming the egg protein yolk
or the hand holding it. "
Check out the uses: 90% less fumes so they say.
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