Preparation of copper thiocyanate
10 g of copper sulfate dissolved in 20 ml of distilled water. To the thus prepared solution are added a solution of 7.8 g of potassium rhodanide in 20 ml of water. Adding rhodanide terminate until the solution above the precipitate formed decolorized. For large nadbytu rhodanides causing clots dissolve rhodanides copper. Precipitate was collected, washed with distilled water and dried on a heater.
default chemicals you can use any soluble salt Copper and rhodanides.