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Re: Phosphoric Acid for rust stripping

To: Marcus Tooze <tooze@vinny.cecer.army.mil>
Subject: Re: Phosphoric Acid for rust stripping
From: Alan Wilson <awilson@basenet.net>
Date: Thu, 24 Aug 1995 17:34:08 -0500 (CDT)
> 
> Only use phosphoric. HCL tendsa to eat metal as well as rust. You can buy
> phosphoric acid by the gallon at your friendly farm supply store (this is
> about the only bonus about living in the boonies). I get mine from Farm and 
> Fleet (in champaign urbana) and they call it acid rinse. Its bright orange in
> color, to encourage small children to drink it no doubt. I use a couple of
> gallons neat in a bucket and it works in about an hour. Sometimes I put
> it in a spray bottle and spray it on. You can dunk your hand in and
> it doesn't do much damage (not the same as conc HCL!!)

Does the can give any hint as to how strong the acid rinse is?  One 
source I have is for the very strong stuff.  Need to know how much to 
dilute it.

Thanks
Alan
'69B

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