| Melting point |
−138 °C(lit.) |
| Boiling point |
−0.5 °C(lit.) |
| Density |
0.579 g/mL at 20 °C(lit.) |
| vapor density |
2.11 (vs air) |
| vapor pressure |
3.21, 1.26, and 0.66 mM at 4, 25, and 50 °C, respectively (Kresheck et al., 1965) |
| refractive index |
1.3326 |
| Flash point |
45 |
| solubility |
Chloroform: Sparingly soluble: 1-10 mg/ml
Methanol: Slightly soluble: 0.1-1 mg/ml |
| form |
gas |
| Odor |
faint disagreeable odor |
| Flame Color |
Bright blue |
| Odor Threshold |
1200ppm |
| Water Solubility |
73.24mg/L(25 ºC) |
| Merck |
1515 |
| BRN |
969129 |
| Henry's Law Constant |
(atm?m3/mol):
0.356 at 5 °C, 0.454 at 10 °C, 0.568 at 15 °C, 0.695 at 20 °C, 0.835 at 25 °C (Ben-Naim et al.,
1973) |
| Exposure limits |
TLV-TWA 800 ppm (～1920 mg/m3)
(ACGIH), 500 ppm (1200 mg/m3) (MSHA). |
| Dielectric constant |
1.4（-1℃） |
| Stability |
Stable. Extremely flammable. Readily forms explosive mixtures with air. Note low flash point. Incompatible with strong oxidizing agents, strong acids, strong alkalies. |
| LogP |
2.890 |
| CAS DataBase Reference |
106-97-8(CAS DataBase Reference) |
| EPA Substance Registry System |
Butane (106-97-8) |
