2-butene
Names
[ CAS No. ]:
107-01-7
[ Name ]:
2-butene
[Synonym ]:
butene-2
(2E)-2-Butene
butylene-2
CH3CH=CHCH3
2-Buten
MFCD00064458
2-BUTYLENE
2-BUTENE
EINECS 210-855-3
E/Z-2-butene
Chemical & Physical Properties
[ Density]:
0.636 g/cm3
[ Boiling Point ]:
1 °C(lit.)
[ Melting Point ]:
−140 °C(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 ]:
1600mmHg at 25°C
[ Index of Refraction ]:
1.384
Toxicological Information
CHEMICAL IDENTIFICATION
- RTECS NUMBER :
- EM2932000
- CHEMICAL NAME :
- 2-Butene
- CAS REGISTRY NUMBER :
- 107-01-7
- BEILSTEIN REFERENCE NO. :
- 1718755
- LAST UPDATED :
- 199710
- DATA ITEMS CITED :
- 6
- MOLECULAR FORMULA :
- C4-H8
HEALTH HAZARD DATA
ACUTE TOXICITY DATA
- TYPE OF TEST :
- LC50 - Lethal concentration, 50 percent kill
- ROUTE OF EXPOSURE :
- Inhalation
- SPECIES OBSERVED :
- Rodent - mouse
- DOSE/DURATION :
- 425 ppm
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- REFERENCE :
- 85JCAE "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986 Volume(issue)/page/year: -,12,1986 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 14144 No. of Facilities: 35 (estimated) No. of Industries: 3 No. of Occupations: 8 No. of Employees: 1648 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 14144 No. of Facilities: 32 (estimated) No. of Industries: 1 No. of Occupations: 1 No. of Employees: 545 (estimated)
Safety Information
[ Hazard Codes ]:
F: Flammable;
[ Risk Phrases ]:
R12
[ Safety Phrases ]:
S9-S16-S33
[ RIDADR ]:
UN 1012 2.1
[ WGK Germany ]:
3
[ RTECS ]:
EM2932000
[ Hazard Class ]:
2.1
[ HS Code ]:
2901232000
Synthetic Route
Precursor & DownStream
Precursor
DownStream
Customs
[ 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%