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Properties of substance:
iron pentacarbonyl
skc-file
Group of substances:
inorganic
Physical appearance:
liquid
Empirical formula (Hill's system for organic substances):
C
5
FeO
5
Structural formula as text:
Fe(CO)5
Molar/atomic mass: 195.9
Melting point (°C):
-21
Boiling point (°C):
105
Decomposition temperature (°C):
130
Solubility (g/100 g of solvent):
acetaldehyde
: moderately soluble [
Ref.
]
acetic acid
: miscible [
Ref.
]
acetone
: soluble [
Ref.
]
amyl alcohol
: miscible [
Ref.
]
benzaldehyde
: miscible [
Ref.
]
benzene
: soluble [
Ref.
]
benzine: soluble [
Ref.
]
bromobenzene
: miscible [
Ref.
]
butyric acid
: moderately soluble [
Ref.
]
carbon disulphide
: miscible [
Ref.
]
carbon tetrachloride
: miscible [
Ref.
]
chloroform
: very slightly soluble [
Ref.
]
diethyl ether
: soluble [
Ref.
]
ethanol
: soluble [
Ref.
]
ethyl acetate
: miscible [
Ref.
]
formamide
: very slightly soluble [
Ref.
]
tetraline
: miscible [
Ref.
]
water
: insoluble [
Ref.
]
Interatomic distances and bond angles:
Interatomic distances (in pm): 115 (C-O)
Interatomic distances (in pm): 184 (Fe-C)
Numerical data:
Year of discovery: 1891
Density:
1.53 (-20°C, g/cm
3
)
1.493 (0°C, g/cm
3
)
1.474 (13.4°C, g/cm
3
)
1.47 (15.5°C, g/cm
3
)
1.468 (16.5°C, g/cm
3
)
1.462 (19°C, g/cm
3
)
1.453 (20°C, g/cm
3
)
1.456 (21.1°C, g/cm
3
)
1.46 (22°C, g/cm
3
)
1.421 (40°C, g/cm
3
)
1.382 (60°C, g/cm
3
)
Reactions of synthesis:
[
Ref.1
]
Fe + 5CO → Fe(CO)
5
Reactions:
[
Ref.1
]
Fe(CO)
5
+ 3NaOH → NaH[Fe(CO)
4
] + Na
2
CO
3
+ H
2
O
2NaH[Fe(CO)
4
] + H
2
SO
4
→ 2H
2
[Fe(CO)
4
] + Na
2
SO
4
[
Ref.1
]
Fe(CO)
5
+ H
2
SO
4
→ FeSO
4
+ 5CO + H
2
Vapour pressure (Torr):
10 (4.7°C)
28 (18°C)
100 (50.3°C)
Permittivity (dielectric constant):
2.6 (20°C)
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
-764 (l)
Standard molar Gibbs energy of formation Δ
f
G
0
(298.15 K, kJ/mol):
-695.2 (l)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
338 (l)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
240.6 (l)
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
-723.8 (g)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
445 (g)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
168 (g)
LD
50
(mg/kg):
1.75 (rabbits, oral)
1.75 (rabbits, intravenous)
References:
Bell C.F. Syntheses and Physical Studies of Inorganic Compounds. - Pergamon Press, 1972. - pp. 169-175
Lewis R.J. Sax's Dangerous Properties of Industrial Materials. - 12ed., Vol. 1-5. - Wiley, 2012. - pp. 2595-2596
The Merck Index 11th ed., Merck & Company, 1989. - pp. 806
Белозерский Н.А. Карбонилы металлов. - М.: ГНТИЛЧЦМ, 1958. - pp. 46-134 [Russian]
Волков В.Л., Сыркин В.Г., Толмасский И.С. Карбонильное железо. - М.: Металлургия, 1969. - pp. 27-34 [Russian]
Вредные вещества в промышленности: Справочник для химиков, инженеров и врачей. - 7-е изд., Т.3. - Л.: Химия, 1976. - pp. 529 [Russian]
Гринвуд Н., Эрншо А. Химия элементов. - Т.2. - М.: БИНОМ. Лаборатория знаний, 2008. - pp. 432 [Russian]
Некрасов Б.В. Основы общей химии. - Т.2. - М.: Химия, 1973. - pp. 345-346 [Russian]
Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 63 [Russian]
Химическая энциклопедия. - Т. 2. - М.: Советская энциклопедия, 1990. - pp. 130 [Russian]
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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru