Paraformaldehyde
Paraformaldehyde (PFA) is the smallest polyoxymethylene, the polymerization product of formaldehyde with a typical degree of polymerization of 8–100 units. Paraformaldehyde commonly has a slight odor of formaldehyde due to decomposition. Paraformaldehyde is a poly-acetal.
| Names | |
|---|---|
| IUPAC name
Polyoxymethylene | |
| Identifiers | |
| ChemSpider |
|
| ECHA InfoCard | 100.108.270 |
| EC Number |
|
| UNII | |
CompTox Dashboard (EPA) |
|
| Properties | |
| OH(CH2O)nH (n = 8 - 100) | |
| Appearance | white crystalline solid |
| Density | 1.42 g·cm−3 (25 °C) |
| Melting point | 120 °C (248 °F; 393 K) |
| low | |
| Hazards | |
| GHS labelling: | |
| Danger | |
| H228, H302, H315, H317, H318, H332, H334 | |
| Safety data sheet (SDS) | Oxford MSDS |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references | |
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