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Properties of substance:
cis-2-butene
Group of substances:
organic
Physical appearance:
colorless gas
Empirical formula (Hill's system for organic substances):
C
4
H
8
Structural formula as text:
CH3CH=CHCH3
Molar/atomic mass: 56.11
Melting point (°C):
-138.91
Boiling point (°C):
3.72
Solubility (g/100 g of solvent):
benzene
: soluble [
Ref.
]
diethyl ether
: very soluble [
Ref.
]
ethanol
: very soluble [
Ref.
]
water
: insoluble [
Ref.
]
Density:
0.6994 (-50°C, g/cm
3
)
0.6885 (-40°C, g/cm
3
)
0.6776 (-30°C, g/cm
3
)
0.6667 (-20°C, g/cm
3
)
0.6558 (-10°C, g/cm
3
)
0.6449 (0°C, g/cm
3
)
0.6449 (4°C, g/cm
3
)
0.634 (10°C, g/cm
3
)
Refractive index (n
D
):
1.393 (-25°C)
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
-5.7 (g)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
300.8 (g)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
78.91 (g)
Enthalpy (heat) of vaporization Δ
vap
H (kJ/mol):
23.35
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
-29.8 (l)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
219.9 (l)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
127 (l)
Critical pressure (MPa):
4.1
References:
CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 5-26
Dean J.A. Lange's handbook of chemistry. - 1999. - pp. 1.128
Промышленные хлорорганические продукты: Справочник. - М.: Химия, 1978. - pp. 613-614 [Russian]
Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 134 [Russian]
Рапопорт Ф.М., Ильинская А.А. Лабораторные методы получения чистых газов. - М., 1963. - pp. 348-351 [Russian]
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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru
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