丁二酮
Butane-2,3-dione · Диацетил · Diacetyl · بيوتان ديون · Diasetil · Diacetilo · دیاستیل · Diacétyle · בוטאן-2,3-דיון · Diacetil · Diacetile · ジアセチル
| CAS | 431-03-8 |
|---|---|
| EC | 207-069-8 |
| UN | 2346 |
| 分子式 | C4H6O2 |
| 摩尔质量 | 86.089 g/mol |
| 爆炸下限（LEL） | 2.4 % vol |
| 爆炸上限（UEL） | 13.0 % vol |
| 闪点 | 6 °C |
| 引燃温度 | 365 °C |
| 温度组别 | T2 |
| 气体或蒸气的相对密度（空气 = 1） | 2.97 |
| GHS | 危险 · 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.