Paraformaldehyde (CAS 30525-89-4) is a white to off-white prilled solid and a polymer of formaldehyde with a pungent odor that depolymerizes on heating to release formaldehyde gas, and it is used as a chemical intermediate in resin, plastics and agrochemical manufacturing as well as a disinfectant, preservative and laboratory fixative.
Typical Properties
| Molecular formula | (CH2O)x |
|---|---|
| Molecular weight | 90.08 g/mol |
| Form | prilled |
| Color | White to off-white |
| Odor | odor of formaldehyde |
| Melting point | 164 °C (decomp) |
| Boiling point | 120-170 °C |
| Density | 1.46 g/cm³ |
| Water solubility | sparingly soluble |
| Flash point | 158 °F |
| pH | 5.5 (H2O, 20°C)(saturated solution) |
| HS code | 38084090 |
| Grades available | Technical Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Paraformaldehyde
Applications
Used as a disinfectant, preservative, and chemical intermediate in resin, plastic, and agrochemical manufacturing. It also serves as a laboratory fixative and reducing agent.
Safety & Risks
Toxic and irritant; handle with gloves and ventilation to avoid inhalation of vapors.
Packaging
Delivered in 25 kg PE-lined bags or drums. Store cool, dry, and sealed.