Iron(III) p-toluenesulfonate is a key functional metal-organic salt, widely used as an oxidant and catalyst in electronic materials and organic synthesis. Its primary application is as a solid capacitor oxidant, polymerized with EDOT (3,4-ethylenedioxythiophene) to form PEDOT conductive polymers for high-performance solid electrolytic capacitors, offering high conductivity and stability. In organic chemistry, it acts as a mild, selective oxidant for alcohol oxidation, aromatic coupling, and heterocyclic synthesis. It serves as a catalyst in Friedel-Crafts reactions and esterification processes. In materials science, it is used to prepare conductive coatings, organic semiconductors, and battery electrode materials. With high purity and good solubility in polar solvents, it meets both lab research and industrial production needs, playing a vital role in advanced electronic chemical manufacturing.

This compound is a corrosive and irritating substance (GHS05, H318: Causes serious eye damage). Inhalation of dust irritates the respiratory tract, causing cough and shortness of breath. Skin contact may cause redness, itching, and chemical burns, especially with prolonged exposure. Eye contact leads to severe irritation, tearing, and potential corneal injury. Ingestion causes nausea, vomiting, and gastrointestinal corrosion. Operate in a fume hood with dust mask, chemical-resistant gloves, and safety goggles. Avoid contact with strong oxidants and moisture. Store sealed and away from food. In case of leakage, collect solid waste to prevent dust spread. Rinse skin with plenty of water for 15 minutes. Flush eyes with clean water for at least 15 minutes and seek medical attention. If swallowed, do not induce vomiting; drink water and get immediate medical help. Dispose of waste per hazardous waste regulations.