Ammonium Thiocyanate

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Why Buy Ammonium Thiocyanate Online from UK Chemical Suppliers, ReAgent Chemicals?

We can supply ammonium thiocyanate with 0.0998 - 0.1002 Molarity in 2.5L containers, with discounts for bulk buying. We have over 30 years’ experience in the field, with many different clients, from industry to pharmaceuticals.

Complex preparation

Also known as Ammonium rhodanid or Ammonium rhodanate, ammonium thiocyanate has the chemical formula CH4N2S. It forms colourless and odourless hygroscopic crystals, which are very soluble in water, ethanol and acetone but insoluble in chloroform. It’s prepared by mixing carbon disulphide (CS2) and aqueous ammonia (NH3), forming ammonium dithiocarbamate (NH2C(=S)SNH4), which decomposes to ammonium thiocyanate and hydrogen sulphide (H2S) after heating. An alternative method of synthesis involves boiling a solution of ammonium cyanide in the presence of sulphur.Identification of ammonium thiocyanate in solution is done by precipitation as silver thuiocyanate in the presence of silver nitrate. Alternatively, by addition of ferric salt, a red colouration appears after production of ferric thiocyanante.


Although not flammable, it produces poisonous gases in fire, including ammonia, nitric oxides, sulphur oxides, and hydrogen cyanide. Inhalation of dust may cause irritation of eyes and throat, so protective clothing, including gloves and googles, must be worn. Full details about safety procedures can be found on the Material Safety Data Sheet available to download online.

Uses from herbicides to photography

Ammonium thiocyanate has many different applications, including:
  • Herbicides
  • Artificial resins
  • Matches
  • Photography (stabilising agent)
  • Rustproofing products
  • Adjuvant in textile printing and dyeing
  • Titrimetric analysis
  • Used to determine the iron content in drinks
  • Used in the separation of hafnium from zirconium

At ReAgent

If you have any questions about Ammonium thiocyanate or any other of our products, we’re here to help you. Just call us for a quote of a technical query. All our products come with a 100% quality guarantee and are usually shipped within 24 hours of purchase.
0800 990 3258