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Properties of substance:
iron(II) chloride
Group of substances:
inorganic
Physical appearance:
trigonal crystals
Empirical formula (Hill's system for organic substances):
Cl
2
Fe
Structural formula as text:
FeCl2
Molar/atomic mass: 126.75
Melting point (°C):
677
Boiling point (°C):
1012
Solubility (g/100 g of solvent):
acetone
: soluble [
Ref.
]
diethyl ether
: insoluble [
Ref.
]
ethanol
: 100 (20°C) [
Ref.
]
ethyl acetate
: insoluble [
Ref.
]
water
: 49.7 (0°C) [
Ref.
]
water
: 62.6 (20°C) [
Ref.
]
water
: 68.6 (40°C) [
Ref.
]
water
: 78.3 (60°C) [
Ref.
]
water
: 94.2 (100°C) [
Ref.
]
Hygroscopic:
yes
Density:
2.98 (20°C, g/cm
3
)
Reactions of synthesis:
[
Ref.1
]
2FeCl
3
+ Fe → 3FeCl
2
Vapour pressure (Torr):
10 (681°C)
100 (828°C)
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
-341.75 (s)
Standard molar Gibbs energy of formation Δ
f
G
0
(298.15 K, kJ/mol):
-302.35 (s)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
118 (s)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
76.36 (s)
Molar enthalpy (heat) of fusion Δ
fus
H (kJ/mol):
43.01
Enthalpy (heat) of vaporization Δ
vap
H (kJ/mol):
125.5
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
-132.5 (g)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
299 (g)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
57.7 (g)
LD
50
(mg/kg):
450 (rats, oral)
59 (mice, intraperitoneal)
Neel temperature (K):
23
References:
Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 524-531
Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 64 [Russian]
Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 349 [Russian]
Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 62-63 [Russian]
Фурман А.А. Неорганические хлориды (химия и технология). - М.: Химия, 1980. - pp. 386-388 [Russian]
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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru