Chemical Properties of 1-Butene, 2-methyl- (CAS 563-46-2)

1-Butene, 2-methyl-

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InChI
InChI=1S/C5H10/c1-4-5(2)3/h2,4H2,1,3H3
InChI Key
MHNNAWXXUZQSNM-UHFFFAOYSA-N
Formula
C5H10
SMILES
C=C(C)CC
Molecular Weight1
70.13
CAS
563-46-2
Other Names
  • 1-Butene, 2-methyl-
  • 1-Isoamylene
  • 2-Methylbutene-1
  • 2-methylbut-1-ene
  • C2H5C(CH3)=CH2
  • Isopentene
  • UN 2371
  • UN 2459
  • «gamma»-Isoamylene
Sources

Physical Properties

Property Value Unit Source
Δcliquid -3335.74 ± 0.80 kJ/mol NIST
Δf 70.51 kJ/mol Joback Calculated Property
Δfgas -35.10 ± 0.84 kJ/mol NIST
Δfgas -34.80 kJ/mol NIST
Δfliquid -60.96 ± 0.84 kJ/mol NIST
Δfus 6.12 kJ/mol Joback Calculated Property
Δvap 26.19 kJ/mol NIST
Δvap 25.90 kJ/mol NIST
Δvap 25.90 ± 0.10 kJ/mol NIST
IE [9.10; 9.35] eV Show Hide
IE 9.12 ± 0.01 eV NIST
IE 9.10 eV NIST
IE 9.15 ± 0.00 eV NIST
IE 9.12 eV NIST
IE Outlier 9.35 ± 0.08 eV NIST
IE 9.12 ± 0.02 eV NIST
IE 9.12 ± 0.02 eV NIST
IE 9.20 ± 0.10 eV NIST
logPoct/wat 1.97 Crippen Calculated Property
Pc 3668.65 kPa Joback Calculated Property
liquid 254.00 J/mol×K NIST
liquid 253.97 J/mol×K NIST
Tboil [303.45; 311.00] K Show Hide
Tboil 304.40 K NIST
Tboil 304.30 K NIST
Tboil 304.20 ± 1.00 K NIST
Tboil 304.60 ± 0.50 K NIST
Tboil 304.20 ± 0.40 K NIST
Tboil 304.20 ± 0.60 K NIST
Tboil 304.31 ± 0.30 K NIST
Tboil 303.50 ± 2.50 K NIST
Tboil 304.50 ± 2.00 K NIST
Tboil 304.40 ± 0.30 K NIST
Tboil 304.35 ± 0.50 K NIST
Tboil 304.65 ± 0.50 K NIST
Tboil 304.05 ± 0.50 K NIST
Tboil 304.10 ± 0.50 K NIST
Tboil 304.15 ± 1.00 K NIST
Tboil 304.20 ± 0.40 K NIST
Tboil 304.20 ± 0.30 K NIST
Tboil 304.27 ± 0.40 K NIST
Tboil 304.20 ± 0.15 K NIST
Tboil 304.20 ± 0.30 K NIST
Tboil 304.30 ± 0.30 K NIST
Tboil 304.27 ± 0.30 K NIST
Tboil 304.15 ± 1.00 K NIST
Tboil 304.05 ± 1.00 K NIST
Tboil 304.15 ± 0.30 K NIST
Tboil 304.20 ± 0.15 K NIST
Tboil 304.20 ± 0.20 K NIST
Tboil 305.10 ± 1.50 K NIST
Tboil 304.50 ± 1.00 K NIST
Tboil 303.65 ± 2.00 K NIST
Tboil 305.00 ± 3.00 K NIST
Tboil Outlier 311.00 ± 2.00 K NIST
Tboil 303.45 ± 3.00 K NIST
Tboil 304.15 ± 2.00 K NIST
Tboil Outlier 307.15 ± 2.00 K NIST
Tboil 306.15 ± 2.00 K NIST
Tboil 305.15 ± 2.00 K NIST
Tboil 304.65 ± 2.00 K NIST
Tc 470.00 K NIST
Tfus [134.97; 138.95] K Show Hide
Tfus Outlier 138.95 ± 0.30 K NIST
Tfus 135.09 ± 0.30 K NIST
Tfus 134.97 ± 0.40 K NIST
Tfus 135.56 ± 0.06 K NIST
Tfus 135.56 ± 0.05 K NIST
Tfus 135.59 ± 0.03 K NIST
Ttriple 135.60 ± 0.02 K NIST
Ttriple 135.62 ± 0.02 K NIST
Vc 0.30 m3/kg-mol Joback Calculated Property

Temperature Dependent Properties

Property Value Unit Temperature (K) Source
Cp,gas [116.15; 165.35] J/mol×K [320.66; 502.21] Show Hide
Plot of Ideal gas heat capacity.
Cp,gas 116.15 ± 0.35 J/mol×K 320.66 NIST
Cp,gas 128.37 ± 0.39 J/mol×K 362.51 NIST
Cp,gas 140.62 ± 0.42 J/mol×K 407.11 NIST
Cp,gas 153.13 ± 0.46 J/mol×K 453.41 NIST
Cp,gas 165.35 ± 0.50 J/mol×K 502.21 NIST
Cp,liquid 157.30 J/mol×K 298.15 NIST
Cp,liquid 157.19 J/mol×K 298.15 NIST
ΔfusH [5.36; 7.91] kJ/mol [104.70; 135.62] Show Hide
ΔfusH 5.36 kJ/mol 104.7 NIST
ΔfusH 7.91 kJ/mol 135.6 NIST
ΔfusH 7.91 kJ/mol 135.6 NIST
ΔfusH 7.91 kJ/mol 135.62 NIST
ΔvapH [25.50; 28.50] kJ/mol [288.00; 305.00] Show Hide
ΔvapH 28.50 kJ/mol 288.0 NIST
ΔvapH 25.50 ± 0.10 kJ/mol 304.0 NIST
ΔvapH 25.50 kJ/mol 304.3 NIST
ΔvapH 27.30 kJ/mol 305.0 NIST
ΔfusS 58.34 J/mol×K 135.6 NIST
ΔfusS 58.33 J/mol×K 135.62 NIST

Molecular Descriptors

Joback and Reid Groups
-CH2- 1
-CH3 2
=CH2 1
=C< 1

Similar Compounds

Butyl, 2-methylene-. Pentane, 3-methylene-. 2-Pentene, 3-methyl-. 1-Pentene, 2-methyl-. 1,3-Butadiene, 2,3-dimethyl-. Cyclobutane, methylene-. 2-Pentene, 3-methyl-, (Z)-. 1,4-Pentadiene, 2-methyl-. 2-Pentene, 3-methyl-, (E)-. 1-Butene, 2,3-dimethyl-. 1-Pentene. 1,3-Butadiene, 2-ethyl-. 1-Penten-3-yl radical. EtCH=CH. 1-Propene, 2-methyl-.

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Outlier This icon means that the value is more than 2 standard deviations away from the property mean.