Bibliothèque des gaz et solvants
Diacétyle
Butane-2,3-dione · Диацетил · Diacetyl · بيوتان ديون · Diasetil · Diacetilo · دیاستیل · בוטאן-2,3-דיון · Diacetil · Diacetile · ジアセチル · Butaandion
| CAS | 431-03-8 |
|---|---|
| EC | 207-069-8 |
| UN | 2346 |
| Formule | C4H6O2 |
| Masse molaire | 86,089 g/mol |
| LIE (LEL) | 2,4 % vol |
| LSE (UEL) | 13,0 % vol |
| Point d'éclair | 6 °C |
| Température d'auto-inflammation | 365 °C |
| Classe de température | T2 |
| Densité relative du gaz ou de la vapeur (air = 1) | 2,97 |
| GHS | Danger · H225, H302, H315, H317, H318, H331, H373 |
Butane-2,3-dione is an alpha-diketone that is butane substituted by oxo groups at positions 2 and 3. It is a metabolite produced during the malolactic fermentation. Diacetyl appears as a clear colorless liquid with a strong chlorine-like odor. Flash point 80 °F. Less dense than water.