| Identification | More | [Name]
CIS-2-BUTENE | [CAS]
590-18-1 | [Synonyms]
2-BUTENE (CIS)
CIS-2-BUTENE
CIS-B-BUTYLENE
CIS-PSEUDOBUTYLENE
CIS-SYM-DIMETHYLETHYLENE
(2Z)-2-Butene
(z)-2-buten
(Z)-2-Butene
(Z)-2-C4H8
2-Butene,(Z)-
beta-cis-butylene
cis-1,2-Dimethylethylene
cis-Butene
cis-Butylene
high-boilingbutene-2
Butene
CIS-BUTENE-2
(Z)-but-2-ene
CIS-2-BUTENE, 99+%
BUTENE-2 (CIS) | [EINECS(EC#)]
209-673-7 | [Molecular Formula]
C4H8 | [MDL Number]
MFCD00009294 | [Molecular Weight]
56.11 | [MOL File]
590-18-1.mol |
| Chemical Properties | Back Directory | [Appearance]
colourless gas | [Melting point ]
−139 °C(lit.)
| [Boiling point ]
3.7 °C(lit.)
| [density ]
0,62 g/cm3 | [vapor density ]
2 (vs air)
| [vapor pressure ]
1414 mm Hg ( 21 °C)
| [refractive index ]
1.3842 | [Fp ]
−99 °F
| [Stability:]
Stable, but prone to polymerization in the presence of suitable catalysts. Extremely flammable. Readily forms explosive mixtures with air. Can lead to flash fires. Incompatible with strong oxidizing agents, halogens, halogen acids, magnesium perchlorate. | [explosive limit]
9.7% | [Merck ]
1520 | [BRN ]
1361341 | [CAS DataBase Reference]
590-18-1(CAS DataBase Reference) | [EPA Substance Registry System]
cis-2-Butene (590-18-1) |
| Safety Data | Back Directory | [Hazard Codes ]
F+ | [Risk Statements ]
R12:Extremely Flammable. | [Safety Statements ]
S9:Keep container in a well-ventilated place .
S16:Keep away from sources of ignition-No smoking .
S33:Take precautionary measures against static discharges . | [RIDADR ]
UN 1012 2.1
| [WGK Germany ]
3
| [Autoignition Temperature]
615 °F | [DOT Classification]
2.1 (Flammable gas) | [HazardClass ]
2.1 | [HS Code ]
2901230000 | [Hazardous Substances Data]
590-18-1(Hazardous Substances Data) |
| Hazard Information | Back Directory | [General Description]
A colorless liquefied petroleum gas. Boiling point 3.7°C. Asphyxiate gas. Flammability limits in air 1.8-9.7% by volume. | [Reactivity Profile]
The unsaturated aliphatic hydrocarbons, such as 2-BUTENE-CIS(590-18-1), are generally much more reactive than the alkanes. Strong oxidizers may react vigorously with them. Reducing agents can react exothermically to release gaseous hydrogen. In the presence of various catalysts (such as acids) or initiators, compounds in this class can undergo very exothermic addition polymerization reactions. Aluminum borohydride reacts with alkenes and in the presence of oxygen, combustion is initiated even in the absence of moisture. | [Air & Water Reactions]
Highly flammable. Insoluble in water. | [Chemical Properties]
colourless gas | [Definition]
ChEBI: Cis-but-2-ene is a but-2-ene. | [Purification Methods]
The gas is dried with CaH2 and purified by gas chromatography. [Beilstein 1 H 205, 1 II 176, 1 III 728, 1 IV 778.] HIGHLY FLAMMABLE. |
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