Paraformaldehyde (Synonyms: Durine; Formalin (JP17); Formalin-loesungen [German]; Hercules 37M6-8; DTXSID7020637; F-gen; Formalin 40; NSC 298885; 1HG84L3525; EINECS 200-001-8; Oxomethylene; Dormol; H2CO; DSSTox_CID_637; Formaldehyde [USP]; formaldhyde; Aldehyd mraven)

It is a linear polymer of formaldehyde, with formaldehyde odor, sensitive to moisture, decomposed into formaldehyde and water when heated, decomposed into formaldehyde aqueous solution in boiling water, soluble in cold water, dilute alkali and dilute acid solution, insoluble in alcohol and ether, and its highly polymerized formaldehyde is insoluble in water. It is flammable. Low toxicity, median lethal dose (rat, oral) 800mg/kg. Irritating. Organic synthesis, bactericide, fumigant, disinfectant. Polyformaldehyde is a solid formaldehyde with high formaldehyde content, in the form of solid particles; easy to store and transport. It can be converted into formaldehyde vapor at a higher temperature, and it is easy to replace high-concentration formaldehyde to participate in various reactions, which is beneficial to chemical synthesis, pharmaceutical and other industrial fields, especially in the synthesis that requires the use of anhydrous formaldehyde as a raw material, and has a wide range of uses.