Benzene
Benceno · 苯 · Benzol · Бензол · Βενζόλιο · بنزين · Benzol · Бензен · بنزن · בנזן · बेंजीन · Benzol
| CAS | 71-43-2 |
|---|---|
| EC | 200-753-7 |
| UN | 1114 |
| Formula | C6H6 |
| Molar mass | 78.11 g/mol |
| LEL | 1.2 % vol |
| UEL | 8.6 % vol |
| Flash point | -11 °C |
| Autoignition temperature | 498 °C |
| Temperature class | T1 |
| Gas group | IIA |
| Relative density of the gas or vapour (air = 1) | 2.7 |
| GHS | Danger · H225, H304, H315, H319, H340, H350, H372 |
Benzene is a six-carbon aromatic annulene in which each carbon atom donates one of its two 2p electrons into a delocalised system. A toxic, flammable liquid byproduct of coal distillation, it is used as an industrial solvent. Benzene appears as a clear colorless liquid with a petroleum-like odor. Flash point less than 0 °F. Less dense than water and slightly soluble in water.