Reminds me of the hazmat placards we put on our trucks. Folks tend to steer clear of tractor-trailers labelled "Explosives" (!)
On Feb 21, 8:27 am, Kurt Nolte <[email protected]> wrote: > Tangentially related via nitric acid: it's bad news if you're homebrewing > biodiesel using acid esterification techniques. Glycerine + Nitric Acid + > churning = crude nitroglycerin... > > Thank goodness I only know this secondhand! > Kurt > On Feb 21, 2012 8:17 AM, "Stephen Brown" <[email protected]> wrote: > > > > > I made the same mistake - dont do it lol ... no concrete cleaner :) > > > On 21 February 2012 13:14, Graham Rogers <[email protected]>wrote: > > >> I thought muriatic acid was the ingredient in concrete etch. > > >> On Feb 21, 2012, at 4:08 AM, surfswab wrote: > > >> > I tend to wary of anything labeled "acid." Although phosphoric acid, > >> > which is found in pool cleaner, would seem much less toxic than > >> > anything that would "etch" (eat) concrete. > > >> > But that's just me. :) > > >> > On Feb 20, 2:31 pm, Kevin Green <[email protected]> > >> > wrote: > >> >> Hi Everybody, > > >> >> I Thought I would share a hard lesson I just learned. I had great > >> success > >> >> with Phosphoric Acid, sold at Advance Auto Parts for about $7/quart as > >> >> Purple Power De-Ruster. I found out that concrete etch, sold for about > >> >> $12/gallon is (usually) also Phosphoric Acid. It seems that the > >> phosphoric > >> >> acid does a great job of actually converting the rust (iron oxide) > >> back to > >> >> iron and actually reversing the rust. Unfortunately I bought a > >> concrete > >> >> etch that also had Nitric Acid (in addition to Phosphoric), which is > >> not > >> >> selective the same way, and while it converted the the rust on my > >> header > >> >> pipe back to iron, it also ate the iron, so I have a totally destroyed > >> >> header pipe to replace. If anybody is interested I can share photos > >> >> comparing how nice a job the phosphoric did when a part was left to > >> soak > >> >> overnight, and how brutally the part was destroyed when left in Nitric > >> for > >> >> about 9 hours. > > >> >> TL;DR; Phosphoric Acid Good, Nitric Acid Bad > > >> >> Kevin > > >> > -- > >> > You received this message because you are subscribed to the Google > >> Groups "Nighthawk Motorcycle Lovers!" group. > >> > To post to this group, send email to [email protected]. > >> > To unsubscribe from this group, send email to > >> [email protected]. > >> > For more options, visit this group at > >>http://groups.google.com/group/nighthawk_lovers?hl=en. > > >> -- > >> You received this message because you are subscribed to the Google Groups > >> "Nighthawk Motorcycle Lovers!" group. > >> To post to this group, send email to [email protected]. > >> To unsubscribe from this group, send email to > >> [email protected]. > >> For more options, visit this group at > >>http://groups.google.com/group/nighthawk_lovers?hl=en. > > > -- > > You received this message because you are subscribed to the Google Groups > > "Nighthawk Motorcycle Lovers!" group. > > To post to this group, send email to [email protected]. > > To unsubscribe from this group, send email to > > [email protected]. > > For more options, visit this group at > >http://groups.google.com/group/nighthawk_lovers?hl=en.- Hide quoted text - > > - Show quoted text - -- You received this message because you are subscribed to the Google Groups "Nighthawk Motorcycle Lovers!" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/nighthawk_lovers?hl=en.
