KSCN is added to displace the adsorbed I2 making it accessible to the starch collodial particles, hence yielding a sharper endpoint. The iodine will be titrated with a standardized solution of sodium thiosulfate
pharmaceutical industry uses potassium thiocyanate as a raw material for chemotherapeutic drugs, antibiotics and thyroid medications. The chemical industry uses this inorganic reagent to produce photographs and textiles and to manufacture herbicides, fungicides and pesticides.