性质

grade analytical standard

vapor density 2.1 (vs air)

assay ≥99.8% (GC)

autoignition temp. 842 °F

shelf life (limited shelf life, expiry date on the label)

expl. lim. 23 %

refractive index n20/D 1.343(lit.)

n20/D 1.344

bp 32-34 °C(lit.)

mp −100 °C(lit.)

density 0.974 g/mL at 20 °C(lit.)