Paraformaldehyde (chemical formula (CH₂O)n, CAS 30525-89-4) is a white granular or powdery polymerised form of formaldehyde. It depolymerises upon heating or dissolution to release formaldehyde gas, making it an efficient and controllable source of formaldehyde for resins, plastics, coatings, and chemical intermediates. Paraformaldehyde is widely used in the production of phenolic, urea, and melamine resins, as well as in agricultural and disinfectant formulations. Commercial grades are typically available with 91–97% formaldehyde content. Each batch is accompanied by a Certificate of Analysis (CoA) and Safety Data Sheet (SDS).
Applications & Descriptions
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Resin & Polymer Manufacture
Used as a formaldehyde source for urea-formaldehyde, melamine-formaldehyde, phenol-formaldehyde and acetal resins, providing precise control over release rate and reactivity. -
Chemical Intermediate & Synthesis
Acts as a convenient polymeric source of formaldehyde for the synthesis of pentaerythritol, hexamine, and other industrial chemicals requiring formaldehyde functionality. -
Disinfectant & Biocide Formulations
Used in solid disinfectant blends and fumigation agents where gradual release of formaldehyde gas ensures sterilisation efficiency. -
Agricultural Applications
Incorporated into agrochemical formulations (as a slow-releasing formaldehyde donor) for soil disinfection and fumigation, subject to local regulatory compliance. -
Fuel & Explosive Binder Manufacture
Employed as a crosslinking component in solid fuels and energetic binder systems due to its polymeric aldehyde structure and reactive nature. -
Textile & Paper Treatments
Used in crosslinking formulations for textile resins and paper coatings to enhance crease resistance and durability.
