I'm curious on a couple of things relating to MA.
1. Say I find a bottle of MA that's of unknown age at a yard sale or what not, assuming it is tightly sealed and hasn't been left in the sun, if that latter part even matters, does it loose it's strength after several years, or many years, or what not?
I found a bottle of Klean Strip, non green junk, I opened it up and it was a mega WHOOSH! of acid smell, choked me for a moment, much stronger than my own MA that's fresh, same BAUME/%. I'm assuming because it has had a chance for those vapors to really build up in there?
2. I have read on here that MA is the same as Hydrochloric Acid, however I had someone tell me that this is true, except that HA is much more pure, cleaner, free of impurities than MA is. MA is very chemically dirty, lots of junk in it. What junk, I don't know.
Is this true?