590-18-1

Name CIS-2-BUTENE
CAS 590-18-1
EINECS(EC#) 209-673-7
Molecular Formula C4H8
MDL Number MFCD00009294
Molecular Weight 56.11
MOL File 590-18-1.mol
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Chemical Properties

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%
Specific Heat Capacity Cp(liquid):127J/(g·K),at 25℃
Merck  1520
BRN  1361341
Henry's Law Constant 5.5×10-5 mol/(m3Pa) at 25℃, Irmann (1965)
InChI InChI=1S/C4H8/c1-3-4-2/h3-4H,1-2H3/b4-3-
InChIKey IAQRGUVFOMOMEM-ARJAWSKDSA-N
SMILES C/C=C\C
CAS DataBase Reference 590-18-1(CAS DataBase Reference)
EPA Substance Registry System cis-2-Butene (590-18-1)
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Safety Data

Symbol(GHS)  Flame (GHS02)Gas Cylinder (GHS04)
GHS02,GHS04
Signal word  Danger
Hazard statements  H220-H280
Precautionary statements  P210-P410+P403
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
TSCA  TSCA listed
DOT Classification 2.1 (Flammable gas)
HazardClass  2.1
HS Code  2901230000
Hazardous Substances Data 590-18-1(Hazardous Substances Data)

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