Jump to: navigation, search


An amorphous white polymer of formaldehyde. Paraformaldehyde is used as a disinfectant, fumigant, fungicide, and hardener for gelatin. Because paraformaldehyde continually evolves gaseous formaldehyde, it is also used experimentally as a controlled source for formaldehyde exposure.

Synonyms and Related Terms

polyoxymethylene; metaformaldehyde; polyformaldehyde; paraform; formagene; paraffins; Stopmildew (Durban, S.Africa)



Other Properties

Soluble in strong alkalis. Insoluble in ethanol and ether.

Composition (HCHO)x
CAS 30525-89-4
Melting Point 120-170
Density 1.45

Hazards and Safety

Combustible. Flash point = 70C (158F). Toxic by ingestion and inhalation of vapors.

Paraformaldehyde continually evolves formaldehyde fumes.

Mallinckrodt Baker: MSDS

Sources Checked for Data in Record

  • G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 342
  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • S.R.Trotman, E.R. Trotman, Textile Analysis, J.B. Lippincott Company, Philadelphia, 1932
  • Encyclopedia Britannica, Comment: "formaldehyde" Encyclopædia Britannica Premium Service. [Accessed 25 Jan. 2004].

Retrieved from ""