Ammonium thiocyanate (NH₄SCN) is a colorless or white crystalline solid that is easily soluble in water and has a salty taste. It is an important chemical raw material and has a wide range of applications in industry and scientific research.

Ammonium thiocyanate is a versatile chemical that has a wide range of applications in different fields. Here are some of the main uses of ammonium thiocyanate:

1. Metallurgical industry: ammonium thiocyanate is used in the metallurgical industry for the extraction and electroplating of copper, gold, silver and other metals, especially in cyanide substitution technology, ammonium thiocyanate can be used as a metal extractant.

2. Chemical analysis: In analytical chemistry, ammonium thiocyanate is often used as a chromogenic reagent for iron ions, and a dark red ferric thiocyanide complex is formed by reacting with iron ions for quantitative analysis.

3. Agriculture: Ammonium thiocyanate can be used as an ingredient in certain pesticides and herbicides to help control crop pests and weeds.

4. Medicine: In the pharmaceutical field, ammonium thiocyanate can be used as a pharmaceutical raw material, for example, in the production of drugs for the treatment of thyroid diseases.

5. Dye manufacturing: Ammonium thiocyanate is used in the dye industry to produce disperse dyes and reactive dyes, which are widely used in the dyeing and printing of textiles.

6. Organic synthesis: In organic chemistry, ammonium thiocyanate is used as a synthesis reagent for the introduction of thiocyanide groups into organic molecules, thereby synthesizing various compounds.

7. Rubber industry: Ammonium thiocyanate can be used as an accelerator in the rubber industry to increase the speed of rubber vulcanization and improve rubber properties.

8. Photography: In some photographic processes, ammonium thiocyanate is used as a component of a developer to help form an image on a photosensitive material.