Paraformaldehyde
PFA
| PROPERTIES & USAGE | ||
| PROPERTIES | USAGE | |
| Properties | Usage | |
| Chemical formula | OH(CH2O)nH (n = 8 - 100) | fumigant |
| Density | 1.42 g·cm−3 (25 °C) | disinfectant |
| Melting point | 120 °C (248 °F; 393 K) | fungicide, |
| fixative | ||
| SPECIFICATION | ||
| SPECIFICATION | ||
| Specification | ||
| Appearance | : | White Powder without visible impurities |
| Assay (as Formaldehyde) Wt% | : | Min. 98 |
| Ash Content Wt% | : | Max. 0.1 |
| Acidity (As Formic Acid) | : | Max. 0.05 |
| Fe Wt% | : | Max. 0.002 |
| Average Molecular weight | : | 240 – 3000 |
| Average Chain Length | : | 8 – 100 |
| Melting Point °C | : | 120 – 170 |
| Flash Point °C | : | 71 |
| Mesh Analysis | : | |
| Particle size through 200 mesh Wt% | : | Max. 3 |
| NAMES | |||
 |
|||
| パラホルムアルデヒド Parahorumuarudehido |
paraformaldehído | paraformaldehyde | Paraformaldehyde |
| 파라 포름 알데히드 | paraformaldéhyde | paraformaldehyde | paraformaldehyde |
| параформальдегид | Paraformaldehyd | paraformaldehyde | امتصاص العرق |