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<DIV><FONT face="Palatino Linotype" color=#000080 size=4>You guys SLAY
me!</FONT></DIV>
<DIV><FONT face="Palatino Linotype" color=#000080 size=4></FONT> </DIV>
<DIV><FONT face="Palatino Linotype" color=#000080 size=4>Any good chemist (I'm
merely a physicist/engineer/attorney who got better grades in chemistry) knows
that NITRIC acid is "optimized" for etching ferro-metals and copper as
hydrofluoric acid is used to etch glass. So-called "strong" acids refers
to their relative pH at standardized concentrations... but NOT to their
universal reactivity with all substances, especially concrete.</FONT></DIV>
<DIV><FONT face="Palatino Linotype" color=#000080 size=4></FONT> </DIV>
<DIV><FONT face="Palatino Linotype" color=#000080 size=4>If I had any
rust-stains on my driveway I'd go out and buy a flask of HNO3 and that Flit or
Whisk or Shout or Whatever and <EM>PROVE</EM> that my solution would be as... if
not more... effective and at a lower cost and with a less deleterious impact on
the local environment.</FONT></DIV>
<DIV><FONT face="Palatino Linotype" color=#000080 size=4></FONT> </DIV>
<DIV><FONT face="Palatino Linotype" color=#000080 size=4>But who would
listen...?</FONT></DIV>
<DIV><FONT face="Palatino Linotype" color=#000080 size=4></FONT> </DIV>
<DIV><FONT face="Palatino Linotype" color=#000080 size=4>Have it your
way(s),</FONT></DIV>
<DIV><FONT face="Palatino Linotype" color=#000080 size=4></FONT> </DIV>
<DIV><FONT face="Palatino Linotype" color=#000080 size=4>Dr. D.O.
<HR>
</FONT></DIV>
<DIV style="FONT: 10pt arial">----- Original Message -----
<DIV style="BACKGROUND: #e4e4e4; font-color: black"><B>From:</B> <A
title=jsmirz@comcast.net href="mailto:jsmirz@comcast.net">Jeffrey Smirz</A>
</DIV>
<DIV><B>To:</B> <A title=rosekendeb@hotmail.com
href="mailto:rosekendeb@hotmail.com">ken rose jr</A> </DIV>
<DIV><B>Cc:</B> <A title=syty@syty.org
href="mailto:syty@syty.org">syty@syty.org</A> </DIV>
<DIV><B>Sent:</B> Thursday, October 12, 2006 7:26 AM</DIV>
<DIV><B>Subject:</B> Re: [Syty] rust</DIV></DIV>
<DIV><FONT face="Palatino Linotype" color=#000080 size=4></FONT><FONT
face="Palatino Linotype" color=#000080 size=4></FONT><FONT
face="Palatino Linotype" color=#000080 size=4></FONT><FONT
face="Palatino Linotype" color=#000080 size=4></FONT><BR></DIV>It's actually
Whink, which is a dilute solution of hydrofluoric acid. It should
perform about the same as Larry Brown's muriatic acid and Dennis Olivares'
nitric acid. All 3 of these are chemically considered 'strong' acids,
which is why they etch concrete as well as 'remove' rust quicker.
'Weak' acids, such as acetic (vinegar) and carbonic (generated from baking
soda) will also work, but will take a lot longer and may not remove some forms
of rust. ("Rust" is a common term for various iron oxides.)
<DIV><FONT face="Palatino Linotype" color=#000080 size=4></FONT><FONT
face="Palatino Linotype" color=#000080 size=4></FONT><BR
class=khtml-block-placeholder></DIV>
<DIV>Iron Out is sodium hydrosulfite, which generates a "middle" strength
acid when dissolved in water.</DIV>
<DIV><FONT face="Palatino Linotype" color=#000080 size=4></FONT><FONT
face="Palatino Linotype" color=#000080 size=4></FONT><BR
class=khtml-block-placeholder></DIV>
<DIV>All these acids 'remove' rust by converting it to water soluble
salts. For example, the muriatic acid converts iron oxides (red-brown and
insoluble) to iron chloride (colorless and soluble).</DIV>
<DIV><FONT face="Palatino Linotype" color=#000080 size=4></FONT><FONT
face="Palatino Linotype" color=#000080 size=4></FONT><BR
class=khtml-block-placeholder></DIV>
<DIV>If I was as good a mechanic as I am a chemist, my Typhoon would be
running now! I'm still fussing with that fuel pump problem I mentioned on
the list way back in April!<BR>
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<DIV style="FONT-FAMILY: Helvetica"><FONT class=Apple-style-span
face=Zapfino><SPAN class=Apple-style-span
style="FONT-FAMILY: Zapfino">Jeff</SPAN></FONT></DIV>
<DIV style="FONT-FAMILY: Helvetica"><FONT face="Palatino Linotype" color=#000080
size=4></FONT><BR class=khtml-block-placeholder></DIV><BR
class=Apple-interchange-newline></SPAN></SPAN></SPAN></SPAN></DIV><BR>
<DIV>
<DIV>On Oct 11, 2006, at 7:43 PM, ken rose jr wrote:</DIV><BR
class=Apple-interchange-newline>
<BLOCKQUOTE type="cite">
<DIV><FONT face=Arial size=2>Has anyone tried Wink.. Its a liquid rust
remover. I use it to get the rust out of my toilet and it works better than
iron out and other brands that I tried! I just squirt it on the rust stains
and they vanish before your eyes like magic. The stuff is hard to find..kmart
used to have it but i have not looked there lately.. Comes in a small bottle
and costs around $4.00. Last time I bought it at the hardware store..Ace
hardware I believe. Never tried it on concrete but I plan to cause my plow
left some rust on my driveway. Hope this helps!!!</FONT></DIV>
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