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Properties of substance:
iron(III) chloride
Synonyms:
ferric chloride
Group of substances:
inorganic
Physical appearance:
reddish brown hexagonal crystals
Empirical formula (Hill's system for organic substances):
Cl
3
Fe
Structural formula as text:
FeCl3
Molar/atomic mass: 162.21
Melting point (°C):
307.5
Boiling point (°C):
315
Decomposition temperature (°C):
500
CAS №: 7705-08-0
Solubility (g/100 g of solvent):
acetic acid
: very soluble [
Ref.
]
acetone
: 63 (18°C) [
Ref.
]
antimony trichloride
: very slightly soluble [
Ref.
]
arsenic tribromide
: difficulty soluble [
Ref.
]
arsenic trichloride
: soluble [
Ref.
]
benzene
: sparingly soluble [
Ref.
]
benzonitrile
: soluble [
Ref.
]
carbon disulphide
: sparingly soluble [
Ref.
]
chlorine liquid
: soluble [
Ref.
]
diethyl ether
: very soluble [
Ref.
]
diisopropyl ether
: soluble [
Ref.
]
dimethylformamide
: 20 (25°C) [
Ref.
]
ethanol
: 136 (0°C) [
Ref.
]
ethanol
: 141 (15°C) [
Ref.
]
ethanol
: 144 (20.6°C) [
Ref.
]
ethyl acetate
: insoluble [
Ref.
]
glycerol
: very soluble [
Ref.
]
methanol
: 131 (0°C) [
Ref.
]
methanol
: 143 (15°C) [
Ref.
]
methanol
: 161 (30°C) [
Ref.
]
methyl acetate
: soluble [
Ref.
]
nitrosyl chloride
: 93 (0°C) [
Ref.
]
phosphorus tribromide
: soluble [
Ref.
]
phosphorus trichloride
: sparingly soluble [
Ref.
]
phosphorus(V) trichloride oxide
: soluble [
Ref.
]
propylene carbonate
: very soluble (25°C) [
Ref.
]
quinoline
: soluble [
Ref.
]
selenium(IV) oxychloride
: 30.5 (25°C) [
Ref.
]
sulfur dioxide
: soluble [
Ref.
]
sulfuryl chloride
: soluble [
Ref.
]
trichlorosilane
: 0.00156 [
Ref.
]
water
: 74.4 (0°C) [
Ref.
]
water
: 81.8 (10°C) [
Ref.
]
water
: 96.9 (20°C) [
Ref.
]
water
: 99 (25°C) [
Ref.
]
water
: 282 (35°C) [
Ref.
]
water
: 315 (50°C) [
Ref.
]
water
: 373 (60°C) [
Ref.
]
water
: 526 (80°C) [
Ref.
]
water
: 536 (100°C) [
Ref.
]
Properties of solutions:
10% (wt.), solvent - water
Dynamic viscosity (mPa·s) = 1.553 (20°)
Density (g/cm
3
) = 1.0853 (20°)
Index of refraction = 1.3611 (20°)
Freezing point (°C) = -4.85
32% (wt.), solvent - water
Dynamic viscosity (mPa·s) = 5.274 (20°)
Density (g/cm
3
) = 1.3153 (20°)
Freezing point (°C) = -49.16
Hygroscopic:
very hygroscopic
Density:
2.804 (11°C, g/cm
3
)
2.898 (25°C, g/cm
3
)
Reactions of synthesis:
[
Ref.1
]
Fe + Cl
2
→ FeCl
2
2FeCl
2
+ Cl
2
→ 2FeCl
3
Reactions:
[
Ref.1
]
2FeCl
3
+ Fe → 3FeCl
2
[
Ref.1
]
NOCl + FeCl
3
→ NO[FeCl
4
]
Vapour pressure (Torr):
0.000001 (76.9°C)
0.00001 (92.6°C)
0.0001 (110°C)
0.001 (129.2°C)
0.01 (150.8°C)
0.1 (175°C)
1 (203°C)
10 (230°C)
100 (271°C)
Dipole moment (D):
1.27 (20°C)
Standard molar enthalpy (heat) of formation Δ
f
H (298 K, kJ/mol)
-399.2 (s) [
Ref.
]
-253.1 (g) [
Ref.
]
Standard molar Gibbs energy of formation Δ
f
G (298 K, kJ/mol)
-334 (s) [
Ref.
]
Standard molar entropy S (298 K, J/(mol·K))
147.8 (s) [
Ref.
]
344.2 (g) [
Ref.
]
Molar heat capacity at constant pressure C
p
(298 K, J/(mol·K))
96.7 (s) [
Ref.
]
Enthalpy (heat) of fusion Δ
fus
H (kJ/mol)
40 (s) [
Ref.
]
LD
50
(mg/kg):
440 (rats, intraperitoneal)
Neel temperature (K):
10
References:
CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 4-69
Comey A. M., Hahn D. A. A dictionary of Chemical Solubilities Inorganic. - 2 ed. - New York, The MacMillan Company, 1921. - pp. 427-431
Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 525-531
Карякин Ю.В., Ангелов И.И. Чистые химические вещества. - М., 1974. - pp. 108 [Russian]
Некрасов Б.В. Основы общей химии. - Т.2. - М.: Химия, 1973. - pp. 369 [Russian]
Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 64 [Russian]
Реми Г. Курс неорганической химии. - Т.2. - М., 1966. - pp. 302-303 [Russian]
Рипан Р., Четяну И. Неорганическая химия. - Т.2. - М.: Мир, 1972. - pp. 520-521 [Russian]
Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 349 [Russian]
Справочник по растворимости. - Т.1, Кн.2. - М.-Л.: ИАН СССР, 1962. - pp. 1002 [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. 382-386 [Russian]
Химическая энциклопедия. - Т. 2. - М.: Советская энциклопедия, 1990. - pp. 138 [Russian]
Якименко Л.М. Производство хлора, каустической соды и неорганических хлорпродуктов. - М.: Химия, 1974. - pp. 567-572 [Russian]
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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru