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| CAS No.: | 107-01-7 |
|---|---|
| Name: | 2-Butene |
| Article Data: | 575 |
| Molecular Structure: | |
|
|
|
| Formula: | C4H8 |
| Molecular Weight: | 56.1075 |
| Synonyms: | Pseudobutylene;b-Butene; b-Butylene |
| EINECS: | 203-452-9 |
| Density: | 0.636 g/cm3 |
| Melting Point: | ?140 °C(lit.) |
| Boiling Point: | 1 °C(lit.) |
| Flash Point: | °C |
| Solubility: | 242.5mg/L at 25℃ |
| Hazard Symbols: |
 F
|
| Risk Codes: | 12 |
| Safety: | Moderately toxic by inhalation. When heated to decomposition it emits acrid smoke and irritating vapors. |
| Transport Information: | UN 1012 2 |
| PSA: | 0.00000 |
| LogP: | 1.58240 |
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Chemistry
Molecular Structure of 2-Butene (107-01-7):
EINECS: 203-452-9
IUPAC Name: (E)-But-2-ene
Molecular Formula: C4H8
Molecular Weight: 56.106320 g/mol
XLogP3: 2.3
H-Bond Donor: 0
H-Bond Acceptor: 0
Canonical SMILES: CC=CC
Isomeric SMILES: C/C=C/C
InChI: InChI=1S/C4H8/c1-3-4-2/h3-4H,1-2H3/b4-3+
InChIKey: IAQRGUVFOMOMEM-ONEGZZNKSA-N
Index of Refraction: 1.384
Molar Refractivity: 20.63 cm3
Molar Volume: 88.1 cm3
Surface Tension: 16.7 dyne/cm
Density: 0.636 g/cm3
Enthalpy of Vaporization: 23.34 kJ/mol
Boiling Point: 3.7 °C at 760 mmHg
Vapour Pressure: 1600 mmHg at 25 °C
Melting Point: -140 °C(lit.)
Water Solubility: 423.5 mg/L at 25 °C
BRN: 1718755
Toxicity Data With Reference
| 1. | ihl-mus LC50:425 ppm | 85JCAE Prehled Prumyslove Toxikologie; Organicke Latky Marhold, J.,Prague, Czechoslovakia.: Avicenum,1986,12. |
Consensus Reports
Reported in EPA TSCA Inventory.
Safety Profile
Safety Information of 2-Butene (107-01-7):
Hazard Codes: F,F+ .gif){kind=small}
Hazard Note: Flammable
Risk Statements: 12
12: Extremely Flammable
Safety Statements: 9-16-33
9: Keep container in a well-ventilated place
16: Keep away from sources of ignition - No smoking
33: Take precautionary measures against static discharges
RIDADR: UN 1012 2.1
WGK Germany: 3
RTECS: EM2932000
HazardClass: 2.1
Moderately toxic by inhalation. When heated to decomposition it emits acrid smoke and irritating vapors.
Specification
2-Butene (107-01-7) is known as 3-01-00-00732 (Beilstein Handbook Reference) ; Butene, all isomers ; Butene-2 ; Butylene-2 ; CCRIS 8971 ; Dimethylethylene ; HSDB 180 ; Pseudobutylene ; beta-Butylene ; Butene, mixed -1- and -2- isomers . 2-Butene is an acyclic alkene which exists as two geometrical isomers (Z)-2-butene and (E)-2-butene . Both isomers behave similarly in the reactions. It is produced by the catalytic cracking of crude oil. 2-Butene (107-01-7) is mainly used in the production of gasoline , also used to produce the solvent butanone by hydration to 2-butanol followed by oxidation.