呋喃
Furan · Furano · Furan · Фуран · フラン · فوران · فوران · Furan · Фуран · Φουράνιο · Furano · Furane
| CAS | 110-00-9 |
|---|---|
| EC | 203-727-3 |
| UN | 2389 |
| 分子式 | C4H4O |
| 摩尔质量 | 68.07 g/mol |
| 爆炸下限（LEL） | 2.3 % vol |
| 爆炸上限（UEL） | 14.3 % vol |
| 闪点 | -20 °C |
| 引燃温度 | 390 °C |
| 温度组别 | T2 |
| 气体组别 | IIB |
| 气体或蒸气的相对密度（空气 = 1） | 2.35 |
| GHS | 危险 · H224, H302, H315, H332, H341, H350, H373, H412 |
Furan is a monocyclic heteroarene with a structure consisting of a 5-membered ring containing four carbons and one oxygen, with formula C4H4O. It is a toxic, flammable, low-boiling (31C) colourless liquid. Furan appears as a clear colorless liquid with a strong odor. Flash point below 32 °F. Less dense than water and insoluble in water.