Potassium thiocyanate is widely used in analytical chemistry as a reagent for detecting the presence of iron ions, forming a distinctive blood-red color when reacting with ferric ions. It is also employed in the textile industry for dyeing and printing fabrics, as well as in the synthesis of pharmaceuticals and pesticides. Additionally, it serves as a key component in some photographic processing solutions and is used in the production of artificial mustard oil. In laboratories, it is utilized in titrations to determine the concentration of certain compounds. Its role in chemical synthesis includes acting as a precursor for other thiocyanate compounds.