Zinc Mercury Thiocyanate Crystals
Zinc ions in solution with K2Hg(SCN)4 form these crystals.
Transmitted Off Crossed Polarized Light Illumination
Zinc in solution can be detected with potassium-mercury thiocyanate (K2Hg(SCN)4). These crystals are
characteristic of that reaction. For this test a small crystal of K2(HgSCN)4 is added to the solution.
The result are these crystals of ZnHg(SCN)4.
Significance in the Environment:
Chamot, Emile Monnin and Clyde Walter Mason, HANDBOOK OF CHEMICAL MICROSCOPY, Volume II, pp. 136-45, 1940.