Thiocyanate Sentence Examples
When passed with carbon dioxide through a red-hot tube it yields carbon oxysulphide, COS (C. Winkler), and when passed over sodamide it yields ammonium thiocyanate.
For example, when a solution of a ferric salt is added to a solution of potassium thiocyanate, a deep red coloration is produced, owing to the formation of ferric thiocyanate.
Chromic thiocyanate, Cr(SCN) 3, an amorphous deliquescent mass, is formed by dissolving the hydroxide in thiocyanic acid and drying over sulphuric acid.
The double thiocyanate, Cr(SCN) 3.3KCNS 4H 2 O, is also known.
Ferrous salts also give a bluish white precipitate with ferrocyanide, which on exposure turns to a dark blue; ferric salts are characterized by the intense purple coloration with a thiocyanate.Advertisement
It is usual, therefore, to add a salt such as sodium thiocyanate.
Ferric thiocyanate has been suggested, and sulphur is said to have been detected in the mineral.