News released on April 18, 2026. Platinum catalyst, a key material in silicone, petrochemical, new energy and other fields, is highly prone to poisoning and deactivation by trace impurities, leading to production downtime and product failure. Industry experts note that ppm-level substances such as sulfur, phosphorus, nitrogen, halogens and heavy metals can strongly adsorb on platinum active sites, forming stable irreversible bonds and disabling reactions like hydrosilylation and hydrogenation, causing non-curing and sharp activity decline. Among poisons, sulfur compounds are the most toxic, while amines, organophosphorus, halides and organotin are common contaminants. Platinum catalysts are widely used in addition-cured silicone, electronic potting, three-way catalysts and fuel cells. Poisoning directly causes losses in the industrial chain. Manufacturers should control raw material purity, use dedicated equipment, adopt sulfur-amine-free gloves and clean operation, and add anti-toxin inhibitors. Rapid heating test distinguishes reversible and permanent poisoning for timely troubleshooting. Scientific prevention reduces risks and ensures stable production.
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