性质

grade analytical standard

vapor density 2.55 (vs air)

vapor pressure 165 mmHg ( 20 °C)

assay ≥99.9% (GC)

autoignition temp. 936 °F

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

expl. lim. 16 %

refractive index n20/D 1.361(lit.)

n20/D 1.362

bp 57-58 °C(lit.)

mp −98 °C(lit.)

density 0.932 g/mL at 25 °C(lit.)