Used primarily in the production of blue pigments for inks, paints, and coatings due to its strong color properties. Employed in electroplating processes as a complexing agent to stabilize metal ions in solution. Serves as a precursor in the synthesis of Prussian blue analogues used in battery materials, particularly in cathodes for sodium-ion batteries. Also applied in analytical chemistry for detecting certain metal ions through colorimetric methods. Its low toxicity compared to other cyanide-containing compounds makes it suitable for select industrial applications where safety is a concern.