Nope! The chemical is made up of a proprietary combination of organic salt and alcohol ethoxylate. The pH is, slightly on the acidic side, resting at around 5pH. I'm able to submerge my hands in the stuff with little or no effect to my skin; however, I lack the nature of sensitive skin. It does have a tendency to cause a drying effect on my skin. Also, the company assures me that the stuff is non toxic and environmentally friendly, which means the stuff can go down the toilet or used to clean something else later on. As far as I know, muriatic/hydrochloric sits at around 1pH or less, depending upon its concentration. Obviously, the more diluted the less acidic it becomes. From what I've been told, by the company that makes this stuff, the solution will strip down 1 to 2 molecules depth off of the brass. Whereas steel bearings or wire wool is likely to remove 40 to 100 molecules from the brass with each use.
Judging from the results I've got, from my home testing, several minutes in solution yields some nice results. Five and a half hours of submersion seems to strip the "polish shine" from the brass and seems to yield no extra benefit with regards to longer submersion times. I am going to try the solution with my ultrasonic cleaner, to see if it yields better results than I've had with simple submersion and rinse.