Butane
Butano · Butano · بوتان · Butan · Бутан · بوتان · Butan · Butan · Бутан · Бутан · Βουτάνιο · בוטאן
| CAS | 106-97-8 |
|---|---|
| EC | 203-448-7 |
| UN | 1011 |
| Formula | C4H10 |
| Molar mass | 58.12 g/mol |
| LEL | 1.4 % vol |
| UEL | 9.3 % vol |
| Autoignition temperature | 372 °C |
| Temperature class | T2 |
| Gas group | IIA |
| Relative density of the gas or vapour (air = 1) | 2.01 |
| GHS | Danger · H220 |
Butane is a straight chain alkane composed of 4 carbon atoms. It has a role as a food propellant and a refrigerant. Butane is a colorless gas with a faint petroleum-like odor. For transportation it may be stenched. It is shipped as a liquefied gas under its vapor pressure.