| Melting point |
−160 °C(lit.) |
| Boiling point |
−12 °C(lit.) |
| Density |
2.064 g/mL at 25 °C(lit.) |
| vapor density |
2.01 (21 °C, vs air) |
| vapor pressure |
72.2 psi ( 37.7 °C) |
| refractive index |
1.3518 |
| Flash point |
-83 °C |
| form |
Colorless gas |
| color |
Colorless, very flammable gas with a faint odor |
| explosive limit |
8.3% |
| Water Solubility |
48.9 mg/kg at 25 °C (shake flask-GC, McAuliffe, 1963, 1966) |
| BRN |
1730720 |
| Henry's Law Constant |
1.171 atm?m3/mol at 25 °C (Hine and Mookerjee, 1975) |
| Exposure limits |
NIOSH REL: TWA 800 ppm (1,900 mg/m3). |
| Stability |
Stable. Extremely flammable. May form explosive mixtures with air. |
| InChIKey |
NNPPMTNAJDCUHE-UHFFFAOYSA-N |
| LogP |
2.760 |
| Surface tension |
12.8 mN/m at 273.41K |
| CAS DataBase Reference |
75-28-5(CAS DataBase Reference) |
| EPA Substance Registry System |
Isobutane (75-28-5) |
