Melting Point −160 °C(lit.)
 Boiling Point −12 °C(lit.)
 Water Solubility 48.9 mg/kg at 25 °C (shake flask-GC, McAuliffe, 1963, 1966)
 Density 2.01 (21 °C, vs air)
 Storage Temp 库房通风低温干燥,轻装轻卸,与氧气、空气等助燃气体钢瓶分开存放
 Flash Point -83 °C
 Stability Stable. Extremely flammable. May form explosive mixtures with air.
 Appearance Colorless, very flammable gas with a faint odor ISOBUTANE
 Refractive Index 1.3518