Don Foreman fired this volley in
:

If I pour some battery acid into a beaker, set the beaker on a cold
plate and ensure that it is not physically disturbed, do you assert
that the solution will stratify after some period of time such that
samples drawn from near the bottom will have higher specific gravity
than samples drawn from near the top?

Thank you Don. I was having near-irresistable urges to post something
similar. Apparently, in acid, Brownian motion ceases. Heavy molecules
settle out. G

LLoyd