2-butene

[ Density]:
2 (vs air)

[ Boiling Point ]:
1ºC(lit.)

[ Melting Point ]:
-140ºC(lit.)

[ Molecular Formula ]:
C₄H₈

[ Molecular Weight ]:
56.10630

[ Flash Point ]:
<-30 °F

[ Exact Mass ]:
56.06260

[ LogP ]:
1.58240

[ Vapour density ]:
2 (vs air)

[ Vapour Pressure ]:
2575 mm Hg ( 37.7 °C)

[ Stability ]:
Stable. Incompatible with strong oxidizing agents, peroxides, peroxyacids, aluminium tetrahydroborate. Extremely flammable.

[ Hazard Codes ]:
F

[ Risk Phrases ]:
R12

[ Safety Phrases ]:
S16-S38

[ RIDADR ]:
UN 1012 2.1

[ WGK Germany ]:
3

[ RTECS ]:
EM2932000

[ Hazard Class ]:
2.1

[ HS Code ]:
2901232000

Click to get detail synthetic route

Precursor

DownStream

[ HS Code ]: 2901232000

[ Summary ]:
2901232000 (e)-but-2-ene。supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward)。VAT:17.0%。tax rebate rate:9.0%。MFN tarrif:2.0%。general tariff:20.0%