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Properties of substance:
butanal
Group of substances:
organic
Physical appearance:
colorless liquid
Empirical formula (Hill's system for organic substances):
C
4
H
8
O
Structural formula as text:
CH3CH2CH2CHO
Molar/atomic mass: 72.106
Melting point (°C):
-99
Boiling point (°C):
74.7-75.7
Solubility (g/100 g of solvent):
diethyl ether
: miscible [
Ref.
]
ethanol
: miscible [
Ref.
]
water
: 3.6 (20°C) [
Ref.
]
Reactions:
Yeild 45,5%. [
Ref.1
]
CH
3
CH
2
CH
2
CHO + (CH
3
CO)
2
O → CH
3
CH
2
CH=CHOC(O)CH
3
+ CH
3
COOH
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
-239.2 (l)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
246.6 (l)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
163.7 (l)
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
-204.8 (g)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
343.7 (g)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
103.4 (g)
References:
CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 5-26
Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 772-773 [Russian]
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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru