:The method to make it, is to fuse ammonium thiocyanate at temperatures close to but below 182�C . It melts at 148�C, but conversion is very slow at this temperature.
12.
It was first discovered in 1877 by Marceli Nencki who named it " " Rhodaninsaure " " in reference to its synthesis from ammonium rhodanide ( in modern chemistry ammonium thiocyanate ) and chloroacetic acid in water.
13.
The key was using a chemical called ammonium thiocyanate to make the metal soluble in the soil, said Christopher W . N . Anderson, Robert R . Brooks and colleagues at Massey University in Palmerston North, New Zealand.
14.
Unfortunately, the plants can dig only so deep, because the ammonium thiocyanate that must be spread on the ground for them to do their job will penetrate and release gold only up to a foot below the surface.
15.
Lead ( II ) thiocyanate may be made by reacting lead ( II ) acetate ( Pb ( CH 3 COO ) 2 ) solved in water with either potassium thiocyanate ( KSCN ) or ammonium thiocyanate ( NH 4 SCN ), thus causing a white precipitation of solid lead ( II ) thiocyanate.
