Acetaldehyde
Acetaldehyd · Ацетальдегид · Αιθανάλη · أسيتالدهيد · Asetaldehid · Ацеталдехид · Acetaldehído · استالدهید · Éthanal · אצטאלדהיד · एसिटल्डिहाइड · Acetaldehid
| CAS | 75-07-0 |
|---|---|
| EC | 200-836-8 |
| UN | 1089 |
| Formula | C2H4O |
| Molar mass | 44.05 g/mol |
| LEL | 4.0 % vol |
| UEL | 60.0 % vol |
| Flash point | -38 °C |
| Autoignition temperature | 155 °C |
| Temperature class | T4 |
| Gas group | IIA |
| Relative density of the gas or vapour (air = 1) | 1.52 |
| GHS | Danger · H224, H319, H335, H341, H350 |
Acetaldehyde is the aldehyde formed from acetic acid by reduction of the carboxy group. It is the most abundant carcinogen in tobacco smoke. Acetaldehyde appears as a clear colorless liquid with a pungent choking odor. Flash point -36 °F. Boiling point 69 °F.