Ammonium thiocyanate

Ammonium thiocyanate is an inorganic compound with the formula NH₄SCN. It is the salt of the ammonium cation and the thiocyanate anion.

Ammonium thiocyanate is used in the manufacture of herbicides, thiourea, and transparent artificial resins; in matches; as a stabilizing agent in photography; in various rustproofing compositions; as an adjuvant in textile dyeing and printing; as a tracer in oil fields; in the separation of hafnium from zirconium, and in titrimetric analyses.

In May 1945, USAAF General Victor E. Betrandias advanced a proposal to his superior General Arnold to use of ammonium thiocyanate to reduce rice crops in Japan as part of the bombing raids on their country.

Ammonium thiocyanate can also be used to determine the iron content in soft drinks by colorimetry.