Neil - 13-6-2011 at 14:06
I was looking for pH testing supplies in a local petstore and noticed that they sold Mercury(II) iodide in water test kits.
LanthanumK - 13-6-2011 at 14:07
Is it pure HgI2 powder?
UnintentionalChaos - 13-6-2011 at 14:58
It's a fairly dilute solution of HgI2 in KI solution made alkaline with KOH called Nessler's reagent used to detect NH3 in fish tank water. I have a
small bottle that I found in the closet and I'm more concerned over how to dispose of it than excited that I have it.
Neil - 13-6-2011 at 19:37
It only lists sodium hydroxide and the mercuric chloride. Unless I'm mistaken those ingredients do not make Nessler's reagent, they must be omitting
some ingredients from their packaging list.
