Allene
Names
[ CAS No. ]:
463-49-0
[ Name ]:
Allene
[Synonym ]:
PROPADIENE
1,2-propadiene
EINECS 207-335-3
1,2-propanediene
sym-Allylene
propardiene
methylene ethylene
MAPPGAS
Allene
Isoallylene
CH2=C=CH2
propadienylidene
MFCD00008566
Chemical & Physical Properties
[ Density]:
0.546 g/cm3
[ Boiling Point ]:
-34 °C
[ Melting Point ]:
-136ºC(lit.)
[ Molecular Formula ]:
C3H4
[ Molecular Weight ]:
40.06390
[ Exact Mass ]:
40.03130
[ LogP ]:
0.95730
[ Vapour density ]:
1.42 (20 °C, vs air)
[ Vapour Pressure ]:
5020mmHg at 25°C
[ Index of Refraction ]:
1.339
[ Storage condition ]:
2-8°C
MSDS
Safety Information
[ Hazard Codes ]:
F+: Highly flammable;F: Flammable;
[ Risk Phrases ]:
R12
[ Safety Phrases ]:
9-16-33
[ RIDADR ]:
UN 2200 2
[ WGK Germany ]:
3
[ Hazard Class ]:
2.1
[ HS Code ]:
2901299090
Synthetic Route
Precursor & DownStream
Precursor
DownStream
Customs
[ HS Code ]: 2901299090
[ Summary ]:
2901299090 unsaturated acyclic hydrocarbons。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:2.0%。General tariff:30.0%