What are the applications of potassium thiocyanate?
2025-05-28
Potassium thiocyanate (KSCN) has a wide range of applications, mainly covering the following areas:
Potassium thiocyanate (KSCN) has a wide range of applications, mainly covering the following areas:
I. Chemical Analysis
Metal ion detection: As a characteristic indicator for trivalent iron ions, it generates a blood-red iron thiocyanate complex; it can also be used for the qualitative and quantitative detection of copper, silver, and barium ions;
Volumetric analysis: Used as a colorimetric indicator in the titrimetric determination of titanium;
Solution preparation: Used to prepare standard thiocyanate solutions.
II. Industrial Manufacturing
Electroplating industry
Used as a stripping agent to remove metal surface coatings and improve the uniformity of electroplating;
Used as a stabilizer in the electroplating of silver, nickel, copper, and other metals to enhance the adhesion of the coating;
Used in the preparation of anti-reflective coatings for optical glass to control the refractive index.
Organic synthesis
Synthesis of thiourea compounds, fluorobenzoylthiourea and other organic intermediates;
Participates in esterification, addition and other reactions as a source of thiocyanate groups.
Materials science
Used for doping perovskite solar cells to improve crystal structure and eliminate hysteresis;
Control the crystal growth of nanomaterials and regulate the size of nanoparticles.
III. Agriculture and Medicine
Pesticide preparation: Used to synthesize insecticides, fungicides, and crop protectants;
Pharmaceutical applications:
Synthesis of anticancer drugs (such as cyanuric acid);
Used in hemoglobin detection and urine testing;
Used as an extraction reagent for biological macromolecules (proteins, nucleic acids).
IV. Food and Light Industry
Food additives: Used as a preservative in wine to inhibit the growth of microorganisms;
Textile dyeing and printing: Improves dye uniformity and color fastness, and improves fiber feel;
Photography: It was once used as a developer and photo thickener.
V. Other Special Uses
Refrigerant: Used in industrial refrigeration systems;
Adhesive preparation: Improves the low-temperature stability and bonding strength of liquid rubber.
Precautions: This compound is irritating to the skin and eyes, and should be handled according to regulations and protective measures should be taken.
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