Nomenclature
CAS number: 10048-99-4
Barium tetraiodomercurate(II); mercuric barium iodide.
BaHgI
4; mol wt 845.53.
Ba 16.24%, Hg 23.72%, I 60.04%.
Properties
Yellow or reddish, deliquesc crystals; said to
become red even when kept in sealed tubes. d 3.5 (conc aq soln). Poisonous. Very sol in water or alc. Keep well closed!Use
As an aq soln known as
Rohrbach's Soln, for separating minerals of different densities; also for
microchemical detection of alkaloids.