SOMEBODY removed my original post...

Thankfully Blackshire captured it.

REGULAR Nitric Acid (70%) is a far cry from RFNA although still a potent oxidizer, it cannot be used for rocket propulsion directly.
Up until 9/11/01 you could get that stuff at independent pharmacies around me without a signature.
Now there are few that have it and require signature.
When a freshman at the University of Michigan back in 1988 I was in the chemlab for the lab portion of Inorganic Chemistry II and I noticed a small yellow stain on the palm of my left hand. I quickly washed it then asked the Lab Professor that I knew from my hometown "what do Nitric Acid burns look like ?"...she asked why and I showed her my hand....she replied "Yep, that's what they look like"...lol....it did NOT cause any pain and just a bit of skin flaked off in a 1"x1/4" patch. It looked perfectly normal in about a week. Sulfuric Acid burns on the other hand are very painful and should be avoided at all cost....

__________________
When in doubt, WHACK the GAS and DITCH the brake !!!

Yes, there is such a thing as NORMAL, if you have to ask what is "NORMAL" , you probably aren't !
Failure may not be an OPTION, but it is ALWAYS a POSSIBILITY.
ALL systems are GO for MAYHEM, CHAOS, and HAVOC !