Potassium thiocyanide (KSCN) is a colorless or white crystalline solid that is easily soluble in water and has a bitter almond flavor. It is an important chemical raw material and has a wide range of applications in industry and scientific research.

1. Chemical analysis: Potassium thiocyanide is used as a chromogenic reagent for iron ions in chemical analysis, which can form characteristic blood-red ferric thiocyanide complexes for quantitative analysis of iron content.

2. Metallurgical industry: In metallurgical processes, potassium thiocyanide can be used as an additive in metal extraction and electroplating, especially in the refining of copper, gold and silver.

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

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

5. Dye manufacturing: Potassium thiocyanide is used in the dye industry to produce certain types of dyes, such as disperse dyes and reactive dyes, which are widely used in the dyeing and printing of textiles.

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